Written by Charlotte Cunningham
Recent wet weather could induce early blackgrass germination, however, growers should be prepared for a later flush, according to the latest advice from Hutchinsons. Charlotte Cunningham reports. Blackgrass has two main flushes, usually in the third week of Sept and the second week of Oct, so the aim is to drill after the weed has germinated and been sprayed off. According to Dick Neale, Hutchinsons, blackgrass seeds have had a proper soaking in the last few weeks and this will induce those nearer the surface into earlier germination. However, he warns that there will still be plenty of later germinating seeds deeper in the soil, so growers are potentially looking at a second October flush as well. “Dormancy is reported as high for this season but in reality, it’s likely to be a mixed bag. Fields that have come out of oilseed rape and winter wheat will experience an extended dormancy, and those that have been spring cropped will see shorter dormancy,” he explains. “Fields experiencing high dormancy could see a 14-day delay to germination. This is a key issue for winter wheat being drilled post oilseed rape and it’s important to use the time between harvest and drilling for…
The post Wet summer brings about early flush of blackgrass – but beware of later risk appeared first on cpm magazine.
Continue reading on CPM website...
If you are enjoying what you read then why not considering subscribing:
