Vineyard versatility with JMS Stylet Oil

Facts
Issue 235, September 2015
Vineyard versatility with JMS Stylet Oil
The versatility of Organic JMS Stylet Oil®
should not be underestimated, with the
spraying oil being effective in controlling
powdery mildew, erinose mite, Botrytis
and mealy bug at specific use timings
throughout the season.
Discussions at New Zealand Winegrowers’
recent grape days emphasised the importance
of mixing different powdery mildew fungicide
groups as a part of an effective resistance
management strategy, says Pete de Jong,
regional manager for Etec Crop Solutions.
“Organic JMS Stylet Oil fits this purpose
perfectly as spraying oils have never had
any resistance issues with diseases or pests,”
Pete says.
season, otherwise the 5-6 l/ha rate should still
be used particularly if you also need to target
erinose mite.
“The 2 l/ha rate early season on clean
vineyards for powdery mildew protection
now costs growers about the same as using
sulphur. However a significant advantage is
that JMS Stylet Oil will work more effectively
against powdery mildew spores in the low
temperatures of this early season timing.”
Pete reiterates that the mid-to-late season
use rates of JMS Stylet Oil are still at the 2%
dilution rate.
Organic JMS Stylet Oil is the only spraying oil
available in New Zealand with better than 99%
purity and it’s been successfully used for more
than 10 years by Kiwi grape growers.
Treated
During his 2013-14 New Zealand visit, Dr Doug
Gubler, Professor of Plant Pathology with the
Agriculture and Natural Resources department
at the University of California Davis, highlighted
several strategies for powdery mildew control
and among them was the application of JMS
Stylet Oil at key timings.
Pete reminds growers: “A couple of Dr Gubler’s
key points of discussion were that (1) JMS
Stylet Oil is so effective it kills powdery mildew
spores within three seconds and (2) that in the
US, growers are using JMS Stylet Oil at 2 l/ha
for the first 2-3 early season applications.”
“It’s also important to note that coverage is
critical for mid-to-late season applications as
the canopy increases, so the fact that Du-Wett
can now be used with JMS Stylet Oil in lower
water volumes is a helpful option for growers
seeking to ensure thorough coverage.”
The versatility of JMS Stylet Oil use in
vineyards:
• As a late dormant, general clean-up spray
• As an early season powdery mildew and
erinose mite spray
• As a mid-late season protectant spray
• As a late season powdery mildew
eradication spray
• As a post-vintage, vineyard clean-up spray
“At all these timings some activity on
Botrytis and mealy bug can also be gained,
highlighting JMS Stylet Oil’s versatility in
New Zealand vineyards.”
Untreated
2013-14 Marlborough powdery mildew replicated trial
For Organic JMS Stylet Oil 2 l/ha early season applications
% leaves infected with powdery mildew
35
30
25
20
15
10
re
s
lit
JM
S+
0
-W
et
t(
20
Du
S+
)
Du
(2 -We
00 tt
lit + O
JM
re il
S+
sw m
Du
at ate
er
-W
)
et
t(
10
0
lit
re
sw
JM
at
S+
er
)
Du
W
(1 e
00 tt
lit + O
re il
sw m
at ate
er
)
JM
S(
40
0
lit
re
sw
at
er
)
w
at
er
hu
r
Su
lp
at
ed
0
JM
“We’d like to remind growers that the 2 l/ha
use rate is only for vineyards with low or no
powdery mildew carryover from the previous
5
Un
tre
Etec Crop Solutions tested the 2 l/ha
application rate in New Zealand with several
replicated trials. The successful results lead to
JMS Stylet Oil now having a 2 l/ha early season
registered label claim.
Fruitfed Supplies National Office | Phone: 09 448 0510 | www.fruitfed.co.nz | Fruitfed Supplies is part of PGG Wrightson Ltd
Product Updates
Kocide Opti is product of choice
for Bay Orchard Sprayers
the environment. It also minimises the wear
on our machines.”
Shane adds that they like working with Rod
Bury and the team at Fruitfed Supplies.
“Fruitfed Supplies has a point of difference
because of the technical back up they offer.
If we ever need advice on what we should
be applying Rod is my first call because the
Fruitfed team has done a lot of work in field
testing products for the programme.
“We stick to what is on the approved Zespri
programme and adhere to the label rate
for Kocide Opti of 70-90 g per 100 litres
throughout the season. If a grower was
to ask us to apply less than the label rate
then we would certainly advise them
accordingly, as we certainly don’t want
copper tolerance building through the use
of sub optimal use rates.”
With green tip pending this month, now is
the time to be protecting your vines from
Psa with timely applications of DuPont™
Kocide® Opti™.
The advent of Psa in kiwifruit has certainly
added to the work volume of the team at
Bay Orchard Sprayers, says the company’s
operations foreman Shane Snowling.
“We’re a lot busier as growers try to maintain a
protectant cover on vines to prevent infection,”
says Shane who is part of the specialised
kiwifruit spraying operation based on the
outskirts of Te Puke.
“Kocide Opti is one of the main products we
apply throughout the season and the drums
of Kocide Opti we get from Fruitfed Supplies
are very convenient and easy to work with. It’s
excellent that the drums can be resealed each
time we’ve taken out the quantity we need for
each particular job.”
Shane says that Bay Orchard Sprayers is a large
user of Kocide Opti. “It’s our product of choice.
Kocide Opti is a fine product and if we had a
choice, we would only use this copper. We
don’t have any issues when we apply it and
we know that we are putting on the least
amount of copper possible which is better for
Established in 1996, Bay Orchard Sprayers now
has five custom-built, self-propelled sprayers
in operation for growers within a 20 km radius
of their home base. “These self-propelled
sprayer machines can be driven on the road
which make us more efficient, with less
downtime between blocks. Between us, we’ve
got more than 100 years of spray experience.”
For more information on Kocide Opti use in
kiwifruit, please contact your local Fruitfed
Supplies field representative.
DuPont™ and Opti™ are trademarks of DuPont or its
affiliates. Kocide® is a registered trademark of Kocide LLC.
Image above: Fruitfed’s Rod Bury with Bay Orchard
Sprayers’ owner Chris O’Dywer and operations
foreman Shane Snowling
Giving crops the best start with Megafol
Megafol, the number one biostimulant
from leading Italian producer Valagro,
again demonstrated good results in a
number of crops last season.
Megafol has been specifically formulated to
initiate and strengthen plant responses to
environmental stress, preparing plants for
stress periods and aiding rapid recovery.
“This is particularly important during the early
part of the season,” says Richard Bawden,
country manager for Valagro Pacific. “We see a
particularly good response in leafy vegetables
through winter and spring, as well as fruit
crops which are often breaking bud and
2
FACTS NEWSLETTER | SEPTEMBER 2015
trying to establish canopy during adverse
spring conditions.”
respond and continue normal growth more
quickly than untreated plants.”
Genomic research at the University Sant’Anna,
Pisa, Italy, clearly demonstrates the processes
initiated within the plant following application
of Megafol. “We see a number of genes
upregulated, particularly those involved in
dealing with environmental stresses such
as cold, drought, heat stress and wounding
damage such as hail or wind. Upregulation
of these genes gives some indication of the
underlying biological processes leading to the
positive results we see in the field. Megafol
applied, preferably, before these stress periods
or immediately after helps the plant to
Data published last year in Scientia
Horticulturae, a leading scientific journal,
further identified the specific mode of
action of Megafol with regards response to
drought stress in tomato plants. This work
concluded: “Analysis of the results from the
NIR, fluorescence and white light imaging
demonstrated that the Megafol pre-treatment
of the plants confers resistance to the effects
of drought stress… In addition to drought
stress resistance, the Megafol-treated plants
were able to recover more quickly when they
had access to water.”
Product Updates
Kasumin reduces Psa leaf spot
and bud rot
Research trials conducted during the 2014/15
growing season reinforce earlier findings that
the efficacy of the bactericide Kasumin® against
Psa is equal to or better than other products.
With recent confirmation that the Zespri
kiwifruit programme again offers growers
the option of using Kasumin, George Follas,
research and development manager for Etec
Crop Solutions, highlights key findings from
their four seasons of research.
“Our tests have shown Kasumin is very
effective in reducing the symptoms of Psa
in kiwifruit,” says George. “The graphs below
highlight the fact that Kasumin significantly
reduced both the level of leaf infection and
the level of bud rot due to Psa.”
George suggests making the first Kasumin
application once there is sufficient foliage
present to allow foliar uptake.
Please note:
• The Zespri/KVH programme allows for
a maximum of two amino glycoside
applications, such as Kasumin or
streptomycin, during the growing season
• Kasumin can only be used up until 21 days
prior to flowering
• Kasumin is compatible in a wide range
of tank mixes with commonly-used plant
protection products such as adjuvants,
coppers and insecticides which provides
great flexibility of application
• It is rainfast within two hours
• Please refer to the Zespri Crop Protection
Programme and associated user guides for
conditions of use.
% Psa infected leaves (Peak Research trial, BOP)
40
35
“The decision regarding a second application
should be based on when conditions that
favour disease infection are anticipated, such
as rain events, hail, wind damage or pruning.”
30
80
25
%
60
%
Kasumin should be used at a rate of
500 ml per 100 litres of water in a minimum of
600 l/ha when leaves are approximately the
size of the old 50 cent piece. The rate can be
increased to a maximum of 5 l in 1,000 litres of
water per hectare.
Severity of but rot pre-flowering (Fruitfed trial, BOP)
20
15
40
10
20
5
0
0
Untreated
Actigard
Untreated
Kasumin Key Strepto
Actigard
Kasumin Key Strepto
Pre-flower assessment
Assessed 9 December
of adverse growing conditions, such as we
often experience through spring.
Total lettuce yield following Megafol application
Paul Wiltshier, Fruitfed Supplies’ Bay of Plenty
area sales manager, had substantial experience
with Megafol in the area last spring.
35
30
25
Research at the University Arizona (Yuma
Agricultural Center) demonstrates the
potential for Megafol on leafy vegetables. This
work compared four applications of Megafol
(3 l/ha) with control plants and showed clear
increases in yield (see graph). This difference
between Megafol-treated and untreated is
likely to be particularly apparent during times
“We saw increased use on kiwifruit during
spring throughout Bay of Plenty,” says Paul. “Of
particular note, when used in response to hail
and frost damage, Megafol certainly assisted
in picking the plants up and getting them
moving again.”
Megafol is a natural product with short or no
pre-harvest interval, depending on crop. For
advice on how Megafol could help you achieve
improved results, please contact your local
Fruitfed Supplies representative or store.
20
+ 18%
15
10
5
0
Untreated
Megafol
T/ha
University Arizona Yuma Agricultural Center
SEPTEMBER 2015 | FACTS NEWSLETTER
3
Fruitfed News
Fruitfed conference aims to benefit growers
The annual Fruitfed Supplies’ staff
conference took place in Napier during the
winter months.
BlueNote – a customer software tool – for our
reps gives us the ability to be ‘current’ as part
of our service.
Fruitfed’s southern region sales manager
Peter Mortimer says: “Fruitfed Supplies has
an opportunity to gather our technical field
representatives and staff once a year. It’s a
chance to celebrate our successes and to catch
up with colleagues from around the country,
as well as an opportunity to gain further
knowledge on a range of topics which we, in
turn, pass on to our customers to benefit their
ongoing pursuit to increase their returns.
“New products, initiatives and services were
covered with presentations by our Supply
Chain team. Opportunities identified provide
a great pathway towards customers achieving
their goals of increased returns.
“This year the conference had a major focus on
our crop sectors with various working groups
discussing the latest developments in ag-chem
and nutrition products and disease and pest
control. These focus group sessions were led
by our technical and commercial teams to help
our staff to grow their knowledge and provide
the best solutions to customers.
“There was a session on how Fruitfed leads
the way in customer service and to improve
Hastings-based horticultural sales representative
Lara Dunningham takes on the role of bingo
assistant to entertainer Keith Preene during the
Fruitfed conference dinner
and go the extra mile. To provide our point of
difference and technical knowledge through
innovation was a key strategy discussion
at conference. A fertiliser recommendation
software tool for our reps is being introduced
this year which will benefit all growers.
“We take the health of all our staff very
seriously. This was a major focus at conference
as we raised our team’s awareness of Health
and Safety processes and the need to make
sure we have the correct procedures in place
to ensure the many staff who have company
vehicles get home safely and that store staff
are adequately equipped for their day-to-day
working environment.”
“Technology plays a major part in our business
as we are now dealing with third and fourth
generation customers. Their hunger for
technology and the tools available means
we have to be aware and keep ahead of the
game. The tools we have introduced, such as
Peter says they also looked ahead to Fruitfed
Supplies’ centenary next year and how the
business will continue to play a leading role
supporting the New Zealand horticultural
industry as it grows in scale and reputation
over the coming years.
Valagro Pacific ran a competition at Fruitfed Hastings where trial results of the dormancy breaker Erger were
played on a flat screen TV. Growers coming into the store were asked to watch the video before entering a competition
to win the TV or, second place, was a dinner for two. The TV was won by Maui Marfell who works for Freshmax. Maui is
pictured here centre, with Fruitfed rep Lara Dunningham and Valagro rep Michael Hope.
Fruitfed customers win with Bahco!
Four two-part Bahco tool kits containing a selection of premium Bahco tools, each worth $3,000, were
given away during a purchase-and-go-in-the-draw promotion at the start of winter.
Bahco Fruitfed winner Amberley
In Amberley, PGG Wrightson/Fruitfed
Supplies store manager Sarah Pacey
(left) got together with horticultural sales
representative Brett Russell (second left)
and Bahco representative Paul Pit (right) to
present Greg Miller (second right), vineyard
manager for Pegasus Winery, with their
distinctive Bahco-orange tool kit.
4
FACTS NEWSLETTER | SEPTEMBER 2015
Bahco Fruitfed winner Whangarei
Bahco Fruitfed winner Blenheim
Carl Gunson, PGG Wrightson/Fruitfed
Supplies store manager in Whangarei,
was pleased to hand over the Bahco
toolbox prize to Hanley Hutchinson of
Huanui Orchards.
In Blenheim, Winston Damsteegt received
his brand-new Bahco toolbox from his
Fruitfed Supplies horticultural sales
representative Nick Kininmonth.
Product Updates
Precision vineyard spraying by helicopter
Etec’s Du-Wett super-spreader aids
early season sulphur applications, says
Marlborough helicopter applicator.
Neal believes adding Du-Wett to the sulphur
tank-mix seems to soften the droplet, taking
the hardness or coarseness out.
Precision Helicopters Ltd Marlborough is
based at and operates from the Omaka
aerodrome outside Blenheim. The business
has been operated by Neal and Tanya
Andrews and their family since 2007.
“Also it’s visually noticeable,” Neil says. “When
these ‘softened’ droplets hit the early leaf
canopy, they don’t bounce and shatter but
deposit where they land. The super-spreading
attributes of Du-Wett then ‘kick in’ and the
droplets spread out 8-10 times the size to give
the excellent coverage. The mix is much better
than applying sulphur alone. Du-Wett also
gives me some degree of drift control, which
is another advantage.”
Neal says he has been spraying Marlborough
vineyards with early sulphur applications
for many seasons. With the addition of DuWett he is able to get the first 2-3 sulphur
applications of the season done for growers
very quickly and cost efficiently.
He is often asked how good his spray
coverage is. In response, Neal says: “Spraying
the early growth stages with water rates
between 100-150 l/ha with the use of
Du-Wett super-spreader, the coverage is
excellent.”
The key is the speed of the application by
helicopter and the area that can be covered.
With the right conditions Neal can spray up
to 250 ha in a morning. Marlborough growers
are welcome to call Precision Helicopters Ltd
Marlborough toll-free on 0800 246 359. Video
footage of vineyard spraying by helicopter is
available to highlight the advantages of using
Du-Wett. Please talk with Fruitfed Supplies
to source Du-Wett and any advice required
about its use.
® Du-Wett is a registered trademark of Elliott Technologies Ltd
Neal is adamant that this season growers
need to close their spray intervals to seven to
ten days.
“I can help by working within the weather
windows to assist vineyards ensure their
applications are achieved on time.”
Neal Andrews of Precision Helicopters Ltd
Marlborough says Du-Wett aids early season
sulphur applications
Vege Tech Bytes
The 2015 Potatoes New Zealand Conference was held in Ashburton in July. Daniel Sutton, Fruitfed
Supplier’s technical advisor based in Pukekohe, went along to hear the latest research on potatoes.
Plant and Food Research presented on the
tomato potato psyllid (TPP). One aspect of
their research is looking into how TPP moves
into the crop, especially from perennial weed
species such as boxthorn. This type of research is
important in the overall holistic monitoring and
control of TPP, and future progress in this area will
be followed with interest. Mesh crop covers were
also discussed, and while initial findings were
promising in regards to TPP and fungal disease
control, any holes in the mesh allow aphids to
enter. Due to a lack of natural predators and
insecticides their populations reach incredibly
high numbers. Lastly, crop rotation has been
looked at over a ten year trial. As expected,
continuous cropping with the same crop
Kevin Manning
contributes Tech-Know
Tips for pipfruit,
summerfruit and grapes.
resulted in an increase in soil-borne diseases,
such as pink root in onions and Rhizoctonia in
potato monoculture rotations.
One of the guest speakers at the conference,
Professor Gary Secor is a professor in the North
Dakota University Plant Pathology Department.
His main area of research focuses on potato
disease diagnosis and management and potato
variety development. During his presentation,
Prof. Secor gave an overview of the good, bad
and new developments in America for many
of the major potato diseases. New chemistry
was providing American potato growers with
effective options for controlling late blight and
Rhizoctonia. Powdery scab is now common in
Tayah Ryan
contributes Tech-Know
Tips for avocados,
citrus and kiwifruit.
most of the country’s growing areas and there
are concerns around a new bacterial disease,
Dickeya solani, which has been found in Europe
and is one of the causal agents in seed decay
(soft rot).
Overall the two day event was well attended by
potato growers from all around the country. Plant
& Food Research and FAR had a strong presence,
and there was a large number of wider industry
members from seed, chemical and agronomic
organisations along with many more. It is great
to see the potato industry support this kind of
event and the turnout for this year’s conference
really showed the support and enthusiasm from
the industry.
Daniel Sutton
contributes Vege Tech
Bytes.
For further information on best practice pest and disease control, crop monitoring and nutrient testing,
please contact your local Fruitfed Supplies store or horticultural sales representative.
SEPTEMBER 2015 | FACTS NEWSLETTER
5
Tech-Know Tips
Avocados
Reminders for September:
»Prodigy™ and Altacor® are very effective options
for leaf roller control. Both have excellent
toxicology profiles on beneficial insects
(including bees). Prodigy also provides ovicidal
activity. Success™ Naturalyte™ and Proclaim®
also have a good fit at this time of year for
those nearing harvest due to their short PHIs.
An effective surfactant must always be used
with Proclaim.
»As flowering draws near and bees become
active in your orchard, be very cautious with
any agrichemical usage. Efforts should be
made to try and avoid spraying altogether
during flowering, but if required, ensure any
product used is bee-safe and do not apply
when bees are foraging.
Citrus
Reminders for September:
»As weather begins to warm in spring, watch for
increasing pest populations, particularly Kelly’s
citrus thrips and armoured scales.
»During spring, young shoots and fruitlets are
particularly susceptible to fungal infections,
so maintain your fungicide programme up
to and post-flowering. Folpan® is an effective
control agent for melanose. Coppers may also
be used, and provide control of other diseases
at the same time.
»Avoid pruning citrus trees between
September and March, as adult lemon tree
borer are active during this time and are
attracted to fresh cuts. Chemical control
Kiwifruit
Reminders for September:
»Beware of frosts following bud-break.
Ideally, overhead water or Orchard-Rite®
wind machines should be utilised for frost
fighting. Alternatively, consider applications
of low-biuret urea (<0.5% biuret) immediately
prior to risk periods.
»Base fertiliser applications should be made
this month if not already completed.
»Cold spring temperatures, Psa pressure or
other stresses can stall or delay canopy
development. Consider an application of
Megafol during, but preferably before times
of stress. Its synergistic action of betaine and
amino acids assists the plant to overcome the
stress and improve growth.
»Cold spring temperatures will suppress
nutrient uptake by the root system and delay
6
FACTS NEWSLETTER | SEPTEMBER 2015
»Spring is a key period for protection against fruit
rots. Continue to maintain a fungicide cover
with copper products such as Kocide® Opti™ or
Tri-Base Blue®.
»Six-spotted mite populations start to increase
rapidly in late winter/early spring. D-C-Tron®
Plus Organic is a good option at this time
of year, particularly when mixed with other
agrichemicals. Once flowering is finished, apply
Mit é mec® plus D-C-Tron Plus Organic for
highly effective control of all lifecycle stages,
including eggs. Ensure there is sufficient new
spring flush to support the uptake of Mit é mec.
improve leaf-greening as required. Also apply
foliar boron to flower trusses and emerging
spring growth. Bortrac is a good option, and
should be applied as per recommendations.
Additionally, consider an application of the
effective slow release soil boron fertiliser
OrganiBOR® in September.
Nutrition is an important consideration in
September
September is a good time to optimise your
trees’ nutritional status before flowering starts.
Yellowed foliage may indicate a nitrogen
deficiency so foliar nitrogen, e.g. Yara Safe-N
or low-biuret urea (max 0.5% biuret), may
be needed. Add magnesium sulphate to
options are limited for this pest, so careful
management is essential.
»Regular crop monitoring can help you
make timely and well thought-out decisions
regarding pest control. Timing applications
to when the most susceptible lifecycle stage
is dominant within the orchard is important
in most cases for effective control. This is
particularly true for some of the newer
chemistry, such as Movento 100SC®, which is
best used on more juvenile populations, and
applied as soon as possible after pest thresholds
are triggered.
Citrac should therefore be considered before
flowering as it contains a small amount of
nitrogen, as well as magnesium, manganese
and zinc. Demand increases during heavy
cropping years. Specialist seaweed products
such as Calibra also assist with nutrient uptake,
alleviation of stress and general plant health.
Prepare your trees nutritionally for flowering and
fruit-set
Nitrogen deficiencies are common just prior
to or during flowering and fruit-set, but excess
nitrogen can affect fruit quality. Additionally,
low soil temperatures may limit nutrient
uptake in spring. Foliar fertilisers such as
establishment of the canopy before flowering.
After bud-break, consider foliar fertilisers such
as Croplift to ensure vines are getting nutrients
required leading up to flowering. The specialist
seaweed product, Calibra, is scientifically
proven to assist with nutrient uptake and
distribution.
Spring is arguably the most critical period for
Psa infection and can result in significant
issues in orchards not using an effective spray
programme. Research over the past four
years shows there appears to be a particularly
critical infection period within the first
month after bud-break where infection risk
is high. This is likely related to physiological
changes within the plant which make it more
favourable for Psa infection, combined with
cool, wet weather conditions. Rapid leaf
growth and numerous rain events will dilute
the concentration of the protective cover on
leaves, so regular applications of protectants
are essential. Kasumin® has recently been
re-introduced into the Zespri Crop Protection
Programme and offers a high efficacy
bactericidal option from bud-break to up to
three weeks pre-flowering. Key Strepto™ and
Kocide Opti should also be used as part of a
programme. Aim to rotate these products and
maintain recommended label rates to avoid
resistance developing. Note the restrictions
regarding the number of and use periods of
Key Strepto and Kasumin.
Bud-break is a critical time for Psa control
Tech-Know Tips
Pipfruit
Reminders for September:
»If powdery mildew was a problem last season,
apply an effective mildewcide, e.g. Fontelis or
Sercadis, at open cluster/pink to gain control
early, particularly for susceptible apple varieties
like Envy, Cox’s Orange and Royal Gala.
»If mealy bug and/or scale caused problems last
season, early season management is important
to gain good control in this season. Ovation®, a
selective insecticide, is highly recommended.
»If woolly apple aphid caused problems last
autumn, it’s critical to apply oil in combination
with an appropriate insecticide at late dormant
or green tip.
Your black spot fungicide programme should
begin from the first sign of green tip for each
variety. Correct timing is vital to protect new
emerging leaves and sepals, which are very
susceptible and may become a source for new
Stonefruit
Reminders for September:
»During bloom, the application of Keystrepto for
bacterial blast control is most effective when
used in conjunction with a suitable adjuvant
and when applied in anticipation of favourable
infection conditions. Application immediately
after frosts, hail or strong wind may also be wise
to prevent disease establishment on damaged
tissue.
»Monitor for thrips during flowering. If thresholds
are exceeded, apply Mavrik Aquaflo®. Studies
confirm Mavrik is safe to bees. However, best
practice is to apply when bees are not foraging.
The foundation to an effective brown rot
control strategy is a protectant spray schedule
over the bloom period. Floral parts are very
Wine Grapes
Reminders for September:
»The mealy bug spray programme on
conventional blocks should begin with a high
volume, dilute application of Tokuthion plus 1%
oil before bud-break. Aim to wet the entire vine
and achieve penetration underneath the bark.
» When combining oil with insecticides in a tank
mix remember to add the oil last when the spray
tank is nearly full. Also, make sure the spray is
agitated throughout the mixing process.
» Start spraying for powdery mildew soon
after bud-break to protect foliage from
early infection. Start when shoots have
approximately 2 cm growth.
Erinose mite populations can be found in
infections later in the season. Early season
best practice is to spray preventatively, i.e. in
anticipation of rain, every 5-7 days, keep to the
recommended product label rates, and ensure
good coverage is achieved. Cool temperatures
may mean repeat applications are required
during protracted bud-burst to ensure newlyopening buds are protected. Syllit Plus is a
good option at this time due to its translaminar
movement in the leaf, which assists spray
coverage and gives rainfastness. Although Syllit
Plus has both curative and protectant activity,
applying before infection periods rather than
after, will give best results. The uptake of the
Syllit Plus active ingredient is not significantly
influenced by temperature, so cool spring
conditions will not impact efficacy as it can
with other fungicides. Note: Syllit Plus requires
a minimum of three hours drying time.
like Fontelis, Sercadis or Seguris Flexi are good
options as they are complex 11 respiration
inhibitors and not cross-resistant to Chorus,
strobilurin or the DMI fungicides.
Remember FRAC resistance management
guidelines for SHDI chemistry: (1) always apply
with a black spot protectant fungicide from
a different mode of action group, (2) use in
single or block applications (no more than
two consecutive applications in a block), (3)
alternate with fungicides from a different
chemistry group, e.g. Polyram or plus Megastar,
if curative reach-back is required and (4)
a maximum of four SHDI applications per
season. Note: Fontelis: Do not apply after 50%
petal-fall.
Green tip
Continue with 5-7 day fungicide applications
to protect new leaves and fruitlets. Polyram
or plus one of the SHDI (Group 7) fungicides
susceptible to brown rot infection and also
function as efficient spore traps. Wet events
during bloom may induce blossom blight
(resulting in a direct crop loss) as well as wood
cankers which serve as an inoculum source
later in the season. When rain is forecast it is
important to apply fungicide covers as the
first flowers open. Products with a systemic
mode of action, like Folicur or Chorus®, should
be favoured for early sprays. Note: Use Chorus
only on peaches, nectarines and apricots.
maximum of three times over bloom (but only
twice in succession) and has a 100% petal-fall
PHI for all summerfruit crops. The Pristine PHI
for cherries has been revised so it can now be
used in the later part of the season, up to one
day before harvest. However growers must
choose whether to use it over bloom or preharvest, as resistance management guidelines
dictate it must not be used at both timings.
Anthers exposed at full bloom
For apricots, nectarines, peaches and plums,
Pristine® has an excellent fit in the mid-late
bloom window, offering high-level efficacy
against both brown rot and Botrytis as well
as good persistence and rainfastness. Both
active ingredients interfere with pre-infection
stages of disease development, so should be
used preventatively. Pristine can be applied a
most of New Zealand’s grape growing regions.
Its leaf-feeding activity elicits a hypertrophic
response in the plant, resulting in unsightly
galls on the lower surface of the leaf blade
and blister-like bulges on the upper surface.
If warm, humid weather coincides with rapid
leaf growth, galling may be severe. High levels
of infestation can inhibit growth, reduce
photosynthetic function and induce premature
leaf drop. However economic damage is most
commonly associated with young vines.
the temperature is substandard for wettable
sulphur to work optimally, a narrow-range,
high purity oil, such as Organic JMS Stylet Oil®
with a 99.2% unsulphonated residue level
and good crop safety profile, has provided
a high level of control of erinose mite in our
research trials when used as described above.
Be mindful of product incompatibilities with oil
sprays; read the label carefully before use.
Erinose mite galls on grape leaf
Good field control of this pest relies heavily
on prudent spray decisions very early in the
season. Our research demonstrates the first
two sprays of the season are critical. Aim
for the first spray cover at around bud-burst
and follow-up approx. 10 days later. Ensure
good foliage coverage is achieved. When
SEPTEMBER 2015 | FACTS NEWSLETTER
7
Earn cash for your
community this spring!
Over the past five years the farming community has raised
more than $365,000 for schools and community organisations
around New Zealand with PGG Wrightson Cash for Communities.
This spring PGG Wrightson and Ballance Agri-Nutrients will continue to run the
Cash for Communities programme, giving you another opportunity to earn cash for your
local community! Simply purchase Ballance Agri-Nutrients fertiliser on your Fruitfed Supplies
or PGG Wrightson account, between 1 September and 30 November 2015, and you can start
earning cash for your local community, school, St John or Rescue Helicopter.*
Join the dots
Starting with
number 1, join
in the correct
order to reveal the dots
a picture
Word puzzle
F|
| ER
Farmyard ma
zeH |
| ET
W|
If you signed up to Cash for Communities in 2014 there’s no need to sign up again.
We’ve automatically registered you for the 2015 spring programme.
|R
| URE
| BOO TS
MOT |
| IKE
| URE
Freephone 0800
10 22 76
Visit www.cash
forcommunities.co.n
how you can
z to find
earn cash for
your local communit out
with PGG Wrightson
y
Cash for Communit
ies!
www.pggwrightson.co
.nz
Helping grow
Freephone 0800
10 22 76
Freephone 0800
10 22 76
| ATOR
D|
Col
COW
our| Ying
activity
S|
TR |
| OR
Fill in the blanks
the words below with
reveal 12 things to
might find on you
a farm.
ACT
MAN
ATE
SEE
ELM
AIR
PAST
RIG
ORB
GUM
ARM
OIL
Visit www.cash
forcommunities.co.n
how you can
z to find
earn cash for
your local communit out
with PGG Wrightson
y
Cash for Communit
ies!
www.pggwrightson.co
.nz
Helping grow
the country
the country
Visit www.cash
Visit www.cash
forcommunities.co.n
forcommunities.co.n
how you can
how you can
z to find
z to find
earn cash for
earn cash for
your local communit out
your local communit out
with PGG Wrightson
with PGG Wrightson
y Freephone 0800
y
Cash for Communit
Cash for Communit
10 22 76 www.pggw
ies!
ies!
rightson.co
www.pggwrightson.co
.nz
.nz
Helping grow
It’s easy to register! Visit www.cashforcommunities.co.nz to nominate your cause.
IR |
| DS
Can you help
all the animals
get back to
the barn?
the country
Helping grow
the country
Find a range of fun children’s activities
at www.cashforcommunities.co.nz
under ‘Resources’.
St John Otautau gratefully accepted
a cheque for $1,559, from PGG Wrightson
and Ballance Agri-Nutrients, in connection
with the Cash for Communities programme.
This donation will help assist our local
community in future care, via gear upgrades,
and help keep the local shuttle running.
PGG Wrightson and Ballance Agri-Nutrients’
Cash for Communities programme has been
supporting the Waikato Westpac Rescue Helicopter
for many years and this support is invaluable to
keeping the Waikato Westpac Rescue Helicopter
flight ready 24/7. Approximately half of the work
undertaken by the helicopter is rurally related
or on a rural location, often in locations that are
inaccessible to other forms of assistance.
Many thanks to PGG Wrightson and Ballance
Agri-Nutrients for their Cash for Communities
contribution of $605. We used this donation to
support our school initiative focusing on science.
This included running a lunchtime science club
and whole day science workshops. The funding
will allow us to provide equipment and
consumables for these programmes.
Anna Nicolson
Station Manager
St John Otautau
Grant Bremner
Chief Pilot/Base Manager
Waikato Westpac Rescue Helicopter
Wendy Bamford
Principal
Wanaka Primary School
*Open to Fruitfed Supplies and PGG Wrightson account holders only. $1 per tonne of Ballance Agri-Nutrients fertiliser purchased (excluding Lime, Gypsum and Hatuma), between
1 September and 30 November 2015, will be donated to your nominated cause. See full terms and conditions at www.cashforcommunities.co.nz. Minimum donation per cause applies.
Facts is a monthly publication of Fruitfed Supplies, the horticultural division of PGG Wrightson Ltd.
Feedback to the editor is welcome – contact Kate Gordon-Smith (021 587 227 or kate@relishcommunications.co.nz).
The information contained in this publication is of general nature and should not be relied upon as a substitute for professional advice in specific cases. All content of this
publication is subject to copyright. Any further use or reproduction of images or content is forbidden without prior permission of Fruitfed Supplies national office. For address
updates, please advise your local Fruitfed Supplies branch or contact the Fruitfed Supplies national office (phone 09 448 0510 or email jbosher@pggwrightson.co.nz).
8
FACTS NEWSLETTER | SEPTEMBER 2015