论文部分内容阅读
在柰(Prunus salicina Lindl.var.cordata Y.He et J.Y.Zhang cv.younai)园的试验结果表明,红色梨小食心虫迷向丝对梨小食心虫的迷向效果比黄色梨小食心虫迷向丝好,能持续对梨小食心虫成虫起到较好迷向作用,平均迷向率92.6%,持效期长达50~60 d,蛀果率为2.11%,蛀果防效为83.21%;黄色梨小食心虫迷向丝对梨小食心虫的迷向效果不太理想,处理后5~20 d内迷向率保持在90%以上,处理后20 d,迷向率仅为50%左右,持效期很短,为10~15 d,蛀果率为5.28%,蛀果防效为58.00%。在柰园,每株柰树悬挂1根红色梨小迷向丝(悬挂1次)即可有效干扰梨小食心虫的交配,减少其种群数量,减轻为害。
The test results in Prunus salicina Lindl.var.cordata Y.He et JYZhang cv. Younai Park showed that the avid effect of the red pear carpoccerus avium against Pyrosia pestis was better than that of the yellow pear carpophora , And could continue to have a good effect of attracting adults on the worm. The average percentage of fans was 92.6%, the holding time was 50-60 days, the rate of boreal fruit was 2.11%, and that of borer was 83.21%. The yellow pear The results showed that the direction of the fans was not ideal. After 5 to 20 days of treatment, the fanning rate remained above 90%. After 20 days of treatment, the fanning rate was only about 50%, and the holding time It is very short for 10-15 days, bore fruit rate is 5.28%, bore fruit control effect is 58.00%. In the park, each plant tree hanging a red pear small fan wire (hanging 1) can effectively interfere with the pest moth mating, reduce the number of its population and reduce the damage.