21 July 1995

ADAS flea beetle advice

INITIAL results from ADAS trials confirm the value of a seed treatment for early protection against flea beetle attack in emerging linseed.

"The adult flea beetle starts feeding as soon as the seed chits, inflicting much of its damage before the crop even emerges," explains Jon Oakley of ADAS Reading. "Although sprays can be used, they are unable to give the underground protection required for seedling emergence."

Using Vitavax RS (carboxin, thiram and gamma-HCH) can give better establishment and replace the first foliar spray. But later sprays may still be needed to prevent subsequent damage, he adds. "Only the cotyledons are protected by the seed treatment." &#42