BASF has launched Nealta, an acaricide based on the new active ingredient cyflumetofen, which is from Group 25, a unique group of insecticides. It will kill all stages of the mites’ life cycle: eggs, immature stages and adults; whilst being compatible with beneficial mites and other insects such as bees.

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Nealta is currently recommended on apples, ornamentals in plant production and protected strawberries. It is formulated as a suspension concentrate and is applied at a dose rate of just 1 litre/hectare. A key benefit for growers is that it has a unique mode of action that is not found in other acaricides, which makes it an excellent resistance management tool against mites on some horticultural crops

Applied as the first application in a mite control programme, Nealta gives strong knockdown and residual effects on mites, but will not affect predatory mites released in the season, or other insects or bees. Only one application is allowed per crop, and Nealta has a harvest interval of one day for protected strawberries and ornamentals and 14 days for apples.

Rob Storer for BASF points out that controlling mites is a difficult process because there is widespread resistance to the many groups of chemistry available. Most crops that suffer from mites need season-long protection, with multiple sprays. Nealta brings a new insecticide group with a new mode of action that is safe for beneficials including bees and predatory mites such as Phytoseilius and other insects.

“Nealta brings all the attributes growers are after, including helping to protect other chemistries from resistance build up,” says Mr Storer.