Movento approved for control of aphids and whitefly on Brassicas

Bayer CropScience insecticide Movento has gained full label approval for the control of aphids and whitefly in collards and kale.

The insecticide helps control sucking pests found on brassica and lettuce crops.

Mealy cabbage aphids, peach potato aphids and whitefly are common brassica pests targeted by Movento, while in lettuce crops it controls blackcurrant lettuce aphids, peach potato aphids and lettuce root aphids.

The insecticide first hit the UK market this spring when it was approved for use on Brussels sprouts, cauliflower, cabbage, broccoli and lettuce.

The addition of collard and kale to this group is, according to Bayer product manager for fruit and vegetable crops Nathan Whitehouse, good news for growers as whitefly numbers are now building up.

He said: "Apply it (Movento) at the beginning of the infestation to target young larvae.Should the weather become cooler and damper, one spray may be sufficient.

But if hot, dry conditions persist, encouraging sustained and heavy whitefly pressure, a three-spray programme may be required.

"Best results will be achieved by following the initial Movento application with Biscaya, then switching back to Movento, with spray intervals of two to three weeks."

Due to the exceptionally cold winter, first flights of peach-potato aphids have been more than a month later than average this year. But catches are now starting to be recorded by the Rothamsted Insect Survey and numbers are expected to build up this month.

Whitehouse added that Movento helps overcome the contamination problems caused by aphids on collard crops. The bugs get among the leaf folds where they cannot be reached by conventional insecticide treatments.

Whitehouse said: "Movento's unique two-way systemicity enables the active ingredient spirotetramat to move up and down the plant and into areas of new growth to target aphids hidden in buds and leaf folds. Essentially this leaves them nowhere to hide."

Trials have shown that a well-timed application can achieve full control of peach-potato and mealy cabbage aphids. "It does such a thorough job, follow-up sprays are only required if new migrations re-infest crops," added Whitehouse.


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