Home' Grower : July 2010 Contents The South Australian Grower -- July 2010 1 3
Pravin Hari, RC Hari and Sons, Pukekohe, New Zealand with a Durivo-treated broccoli showing
By ASHLEY WALMSLEY,
Editor Good Fruit & Vegetables
SINCE the release of Durivo in New
Zealand last year, growers have wasted
no time in utilising the product.
Syngenta saw considerable take up of the
product, particularly around the brassica-
heavy growing regions of Pukekohe,
Gisborne and Hawkes Bay.
Pravin Hari, RC Hari and Sons Ltd, farms
about 100 acres of brassicas per year, among
other crops, within the heavy clay/volcanic
soils of Pukekohe.
A large portion of the produce goes to
Woolworths with some also going to inde-
He took to using Durivo soon after its
launch within the recommended "late win-
dow" resistance management rotation strat-
He said the main attraction was the ability
to use it within an already established IPM
program within his brassicas.
"We have big issues with pests such as
Diamondback Moth and a range of aphids
and face diseases such as downy mildew and
ringspot," Pravin said.
"It is great to achieve early control and
makes it a lot easier to complete a full crop
cycle without over using specialised target
While it's an unusual occurrence for the
region, Pukekohe has experienced some-
thing of a drought of late, with rainfall far
below its average 1200mm for the year.
This has tested the vigour-boosting capa-
bilities of Durivo treated plants with the
crops still boasting strong fruit and healthy
Exactly how Durivo achieves this "added
bonus" is still somewhat unsolved.
Sean Richardson, portfolio manager --
potatoes and vegetables, Syngenta said at
this stage the exact biological mechanism
behind the vigour effect is not fully under-
stood and is being studied.
"However it is a combination of factors
including improved plant performance,
reduced insect pest damage, and chan-
nelling of the plants energy into achieving
the maximum genetic potential," he said.
RC Hari and Sons has been in operation
for 80 years, with Pravin now the third gen-
eration to be involved with the business.
In that time the company has become well
aware of overheads and bottom lines.
"The biggest problems we face are the
growing costs of compliance and the
increasing costs of consumables such as fuel,
seed, fertiliser and labour," Pravin said.
And although impressed with the Durivo's
results, he said it's not the stuff of loose
"One of the biggest drawbacks with
Durivo is the cost of it. It is a great chemi-
cal but it is an added cost which can be hard
to absorb," Pravin said.
Portfolio manager -- potatoes and vegetables
Syngenta, Macquarie Park, Sean Richardson
inspects insect activity within a New Zealand
A SOIL drench with the ability to control many
key lepidoptera and sucking insects pests,
including diamondback moth and silverleaf
whitefly, is set to send a jolt through Australian
International chemical company Syngenta is
waiting on the Australian Pesticides and
Veterinary Medicines Authority to tick the final
boxes so it can release the highly anticipated
Durivo, onto the market.
The promotional material for Durivo
describes it a "revolutionary product" and
while most growers may be sceptical of the
claim, it's not far off it.
The broad spectrum insecticide has made
significant impacts in other countries with its
ability to curb damage from diamond back
moth, caterpillars, aphids, white fly and onion
thrip, to name a few.
Research has also shown the product
encourages more vigorous plant growth in the
early stages and can assist a plant to better
cope under tough growing conditions.
One of the biggest claims the company is
making is the potential for Durivo to replace from
four to eight current insecticide applications.
Syngenta has revealed to Rural Press
exclusively its hopes to have Durivo on
Australian shelves this year, however this is
subject to the APVMA approval.
Durivo has been in commercial brassica use
in New Zealand since November 2009,
however the Australian label will include
fruiting vegetable (tomatoes, capsicums and
egg plants), brassicas and lettuce.
For Sean Richardson, portfolio manager --
potatoes and vegetables, Syngenta, Macquarie
Park, NSW, the interest will be in seeing what
Durivo can do for Australian growers.
"Durivo has been fast tracked by Syngenta
Australia because we recognised the
importance to Australian vegetables growers
for this sort of innovative integrated solution,"
Mr Richardson said.
Mr Richardson said professionally applied
nursery drenching would be the most efficient
way for growers to utilise the product, which
also has a labour saving advantage.
He said Durivo is very compatible within an
integrated pest management (IPM) program
because of the unique and innovative
application window as a seedling application
or as a planting hole application.
"Beneficial insects should never come in to
direct contact with Durivo," he said.
"Durivo moves through the xylem so
beneficial insects on the outside of the plant
will not be effected."
Not surprisingly, industry-changing
chemicals of this nature are not cheap to
-- Ashley Walmsley
NOTE: Syngenta flew Ashley Walmsley to New
Zealand to inspect Durivo treated crops.
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