NovaChem > Industry News > 2022 > Big tick for SP now registered for forage brassicas

Big tick for SP now registered for forage brassicas

Published on 07/12/2022

Darren Mabey says while the entire industry is acutely aware of user safety, and the need to protect beneficial insects, Mavrik’s forage brassica label extension has been eagerly awaited by those at the coalface.
“We were being asked about
it all the time. Contractors are definitely looking for softer and kinder chemistry and Mavrik Aquaflo fits the bill.”

The break-through synthetic
pyrethroid (SP) was launched in NZ in 2021 for use in beet crops.

Daren Mabey says while the in
dustry has a tendency to be cautious about adopting new chemstry for crops where the stakes are high, Mavrik Aquaflo proved an exception.

“The benefits stood out from
the start, it’s very effective at combatting destructive pests while avoiding harm to users and beneficial insects. It received a big tick!”

Tau-fluvalinate, the unique, low
toxicity active in Mavrik Aquaflois proven to be much safer for beneficials than other SPs available in the market, he says.
Nor does that come at the ex
pense of efficacy.

Trials have shown that Mavrik
Aquaflo provided a high degree of Nysius (Nysius huttoni) control and reduction of plant damage following one or two applications and prevented significant cutworm (Agrotis ipsilonaneituma) plant damage.

It could provide up to a
month’s control compared with just 36-48 hours for organophosphates (OPs).

“That’s a significant advan
tage,” Mabey says.

Mavrik Aquaflo affects the
nervous system of Nysius and cutworm after direct contact or ingestion.

While these pests are overcome, the impact
on beneficials including ground beetles, bees and parasitic wasps, lacewings, hover-flies and ladybirds is minimal.

If uncontrolled, the economic impact of
Nysius and cutworm can be substantial for farmers investing in high value forage brassica crops.

Nysius (also known as wheat bug) sucks the
phloem from the shoots and young stems of emerging seedlings, leaving them weakened and prone to wind damage.

Particularly common in warm, dry areas,
Nysius is a NZ native and is widely found nationwide.

Young cutworm will forage on leaves while
the larger more destructive caterpillars can chew through seedlings, taking them out at ground level with devastating results.
Daren Mabey says Mavrik Aquaflo is en
tirely crop safe when applied to seedlings at cotyledon stage in a tank-mixture with Adama herbicides and other commonly used pesticides.

Application is recommended at seedling
stage only when Nysius are active as temperatures rise during the day, as a first post-emergence spray, especially for fodder beet crops.

“Apply at first sign of pest presence and en
sure good coverage of plants and surrounding soil.”

For more detail contact your local Adama
commercial manager or visit

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