Temporary approval granted for control of brassica-feeding moths

A new 120-day EAMU (Extension of Authorisation for Minor Use) has been authorised for Benevia 10 OD for use as an insecticide on Brussels sprout, broccoli, calabrese, cabbage and cauliflower for the control of diamondback moth (Plutella xylostella), following a rapid evaluation by the Chemicals Regulation Division (CRD).

Image: Patrick Clement (CC BY 2.0)
Image: Patrick Clement (CC BY 2.0)

AHDB crop protection senior scientist for pesticide regulation Vivian Powell helped organise the EAMU, working with members of the Brassica Growers Association as well as regulators and manufacturer DuPont.

She said: "Our work is all about finding the solutions to problems that work effectively and efficiently and which can be integrated into IPM strategies."

A pest of brassica crops, the diamondback moth is a relatively small moth so the eggs can be hard to find. Newly-hatched caterpillars burrow into the foliage to feed but then come out onto the leaf surface as they grow larger and cause characteristic "windowpane" damage.

Researchers highlighted exceptionally high numbers of the migratory moths entering the UK in June.

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