论文部分内容阅读
宽颊纹潜叶蜂(Kaliofenusa genata Wei,sp.nov.)是为害榆树的一类新害虫。对宽颊纹潜叶蜂成虫、卵、幼虫、蛹的形态特征进行了描述,并对其生物学特性进行了初步研究。结果表明,宽颊纹潜叶蜂在新疆伊犁地区1年发生1代。以蛹在土壤中做茧越冬。4月初蛹开始羽化,约4月13日达到高峰,4月23日左右结束。成虫平均寿命约10 d,羽化后5～7 d成虫开始产卵。卵5～8 d孵化。幼虫是为害榆树的唯一虫态。4月20日卵开始孵化,5月2日达到孵化高峰。幼虫期12～15 d。至5月20日幼虫全部落入土壤化蛹。早春低温、低湿不利于此虫发生。最后,提出加强栽培管理,充分利用天敌、适时使用高效、低毒化学药剂进行点片防治的治理措施。
Kaliofenusa genata Wei, sp.nov. Is a new type of pest that damages elm. The morphological characteristics of adults, eggs, larvae and pupae of Entamoeba sinensis were described, and their biological characteristics were studied. The results showed that the broad-cheeked leaf-bee had a generation of 1 year in Yili, Xinjiang. Pupa in the soil to do the winter cocoon. April pup began eclosion, peaked on April 13, April 23 or so end. The average life expectancy of adults was about 10 days, and the adults started to lay eggs 5 to 7 days after eclosion. Eggs 5 to 8 days incubation. The larvae are the only insect states that damage the elm. April 20 eggs began to hatch, May 2 to reach the peak incubation. Larvae of 12 ~ 15 d. To May 20 larvae all fell into the soil pupation. Early spring low temperature, low humidity is not conducive to the occurrence of this worm. Finally, it puts forward the measures to strengthen the cultivation and management, make full use of natural enemies, and timely use high efficiency and low toxicity chemical agents to prevent and treat spot spots.