Aphid warning for cereals in mild weather

摘要

It would have been too much to ask that the initial weather forecasts for a dry settled first two weeks of November were accurate so that we could complete herbicide applications to late-drilled cereals. However, we managed a couple of spray days lastweek, but it is increasingly doubtful that we will be able to complete these with the current weather patterns and worsening ground conditions.The mild weather has meant aphid control and barley yellow dwarf virus (BYDV) risk has been a topic of discussion with clients. Insecticides are the one group of chemicals that I am most reluctant in recommending due to the potential effect on beneficial insects.