Oilseed rape growers are being urged to time drilling by seedbed conditions and not calendar date to counter the pest pressure and drought some saw last summer.Experts are cautious about going too early as this can encourage clu-broot and other diseases like light leaf spot, while over-developed crops may lack winter hardiness.Many will be tempted to drill early to repel the threat from cabbage stem flea beetles, but Will Vaughan-France of seed breeder Monsanto urges caution and sug-gests that 10 August is a good startdate for drilling oilseed rape.
展开▼
