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Arable Farming
Cropping
Ryegrass
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<blockquote data-quote="nxy" data-source="post: 7489649" data-attributes="member: 466"><p>Ryegrass has always been a bigger problem in my part of France than Blackgrass. </p><p></p><p>We just about keep on top of it by drilling cereals later and trying to using 3 different actives in the autumn preferably in two hits i.e. pre emergence and at 1 to 2 leaves (by three leaves the residuals start to lose efficiency) and using Kerb every other year in beans and rape. Last year it was 3 litres of Defy then 0.6 Battle Delta (Liberator to you). A lot is made here of DFF complementing Defy on ryegrass, though not really a grass weed product it seems to enhance Defy and is not expensive. I forget does the UK still have Dicurane? Its only allowed here at low doses (1800g/ha) but is a good mixer and is the only residual that's worth using after three leaves.</p><p></p><p>We also don't put wheat into our worst fields. Knee high modern wheats don't compete so the worst land is in triticale. Triticale is worth 10 euros a Tonne less than wheat but the difference in price is offset by savings in herbicides and better straw sales. Some say hybrid barley is good too though never tried it. Our six row barley we grow for bull fattening never seems as bad as our wheat.</p><p></p><p>We still get some effect from Axial but it is a very hard to get the timing right. Current advice is ideally 10 degrees and upwards at application, 70% humidity minimum, its sunlight activated so needs a sunny day, no frost either side of treatment for five days and no Min Max temp difference greater than 15 degrees for 5 days after treatment. All of which means that there may only be one or two days in march that are suitable and even then only for a few hours each day.</p></blockquote><p></p>
[QUOTE="nxy, post: 7489649, member: 466"] Ryegrass has always been a bigger problem in my part of France than Blackgrass. We just about keep on top of it by drilling cereals later and trying to using 3 different actives in the autumn preferably in two hits i.e. pre emergence and at 1 to 2 leaves (by three leaves the residuals start to lose efficiency) and using Kerb every other year in beans and rape. Last year it was 3 litres of Defy then 0.6 Battle Delta (Liberator to you). A lot is made here of DFF complementing Defy on ryegrass, though not really a grass weed product it seems to enhance Defy and is not expensive. I forget does the UK still have Dicurane? Its only allowed here at low doses (1800g/ha) but is a good mixer and is the only residual that's worth using after three leaves. We also don't put wheat into our worst fields. Knee high modern wheats don't compete so the worst land is in triticale. Triticale is worth 10 euros a Tonne less than wheat but the difference in price is offset by savings in herbicides and better straw sales. Some say hybrid barley is good too though never tried it. Our six row barley we grow for bull fattening never seems as bad as our wheat. We still get some effect from Axial but it is a very hard to get the timing right. Current advice is ideally 10 degrees and upwards at application, 70% humidity minimum, its sunlight activated so needs a sunny day, no frost either side of treatment for five days and no Min Max temp difference greater than 15 degrees for 5 days after treatment. All of which means that there may only be one or two days in march that are suitable and even then only for a few hours each day. [/QUOTE]
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