论文部分内容阅读
中华锯花天牛(Apatophysis sinica Semeaov-Tian-Shanskij)幼虫蛀食牡丹根部,被害株生长发育不良,长势衰弱,影响开花,特别严重影响丹皮的产量和品质。该虫3年完成1个世代,以不同龄期的幼虫在牡丹根茎交接处越冬。完成1个世代平均1086.2天,幼虫生长期最长,平均1029.3天。用磷化铝薰杀,在牡丹近根处钻孔培土或在移栽前挖坑用塑料薄膜四面密封处理牡丹苗,死亡率均达100％。防治成本极低,每棵用药合人民币4分;挖坑集中薰蒸,每棵0.48分。经防治后1年的测定,单株根系增加160—230克,开花期延长2—3天。
The larvae of Apatophysis sinica Semeaov-Tian-Shanskij moth fed on the root of peony. The damaged plants grow poorly and grow weakly, affecting the flowering, especially affecting the yield and quality of paeonia. The pest 3 years to complete a generation to different ages larvae in the peony rhizome junction overwintering. One generation completed an average of 1086.2 days, the longest growth period of larvae, with an average of 1029.3 days. With aluminum phosphomides Kaoru, near the roots of peony drilled soil or digging before transplanting plastic film sealed with peony seedlings on all sides, the mortality rate reached 100%. Prevention and control costs are very low, each medicine combined RMB 4 points; dug concentrated fumigation, each 0.48 points. One year after the prevention and treatment of the determination of plant roots increased by 160-230 grams, flowering extended 2-3 days.