South: Rain leaves wheats looking promising

Up to an inch of rain over the weekend was desperately needed.Most wheats look quite promising though there’s some mildewcreeping into the bottom.

The most forward crops are at T1 and it will be important to getthe PGR right. They’ve already had 1 litre/ha of chlormequat and0.1 litres/ha of Moddus (trinexapac-ethyl) and they’ll get the sameagain along with fungicide – generally chlorothalonil with a goodthree-quarter dose of triazole, plus Flexity (metrafenone) ifthere’s mildew present.

Most grassweed control has been completed and Atlantis andPacifica (iodosulfuron + mesosulfuron) seem to have worked well. Wedon’t have too many resistance problems.

Winter barleys look better this year than normal. They’re notthat awful yellow you often see – they seem more like wheat. Mostare approaching GS32 and a lot of people have already appliedfungicide. But it will be important to keep an eye open forrhynchosporium and net blotch after the wet weekend.

I reckon about 15% of the winter rape has been pulled up. Mostpeople have replaced it with spring barley, sown about three weeksago, which is now at the two-leaf stage and looks fantastic. Itshows there was still moisture underneath.

Others have gone with linseed, sown about a week ago, which isjust coming through. They’ll need to watch out for flea beetle andbe prepared to spray a pyrethroid where attacks are severe.

Nitrogen dressings to second wheats are mostly completed, butsome people with forward strong first crops are waiting untilthey’ve applied their second PGR.

Some oilseed rape looks fantastic, but most suffered pigeondamage. Some Biscaya (thiacloprid) has been applied against pollenbeetle. It’s more expensive, but we do have resistance downhere.

The most forward crops have already been treated againstsclerotinia, and will probably need spraying again in a couple ofweeks, especially if they are in high-risk areas. I think two-spraysclerotinia programmes could become the norm.

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