19 June 1998

Spraying while you drill here at last…

DRILL n GO winter wheat establishment is a reality. Pre-emergence herbicide, JV485, combined with a BYDV control seed treatment* is in Norfolk trials set up with a machine specially equipped for the job.

"It is very exciting," says Richard Elliot of Bayer, JV485 product manager. "It starts pre-emergence techniques afresh. Combined with BYDV seed treatment you can leave the field at drilling, and need not go back again until spring."

JV485 is being developed by Monsanto/Bayer joint venture Twinagro. It is claimed to overcome both IPU and fop/dim type blackgrass resistance. "But it has much wider applications. Autumn cleaver control is 95% plus, and apart from ivy-leaved speedwell or volunteer beans, broad-leaved weed control is pretty well wall to wall," says Mr Elliot.

The technique is being tested at Salle Farms, Reepham, near Norwich. BYDV control treated seed was drilled and a pre-emergence spray of JV485 in 200litres/ha of water was applied from the drill last autumn.

"It doesnt slow down drilling," says Salle Farms operator James Beamish."Obviously the tank has to be filled, but that can be done when loading the drill."

*Already approved for barley as Raxil Secur (tebuconazole + triazoxide + imidacloprid) (Arable May 22), the wheat product awaits PSD clearance, says Bayer.

s Bob Simons.

On-drill spraying offers an autumn short-cut, explains Richard Elliot.