草地螟成虫监测及防治技术研究

通过１９９７，１９９８年越冬代草地螟进行种群动态规律及防治策略研究表明：（１）在黑龙江省呼兰地区，外地虫源和本地虫源同时存在，当外地虫源大量迁入时可造成的物毁灭性灾害。（２）赵冬代草地螟始见５月中旬，发生盛期为６月上旬，末期为６月下旬，活动时间１个月左右。（３）成虫卵巢发育及交配状态的解剖监测是预测草地螟幼虫发生数量和时间的依据之一。（４）结合草地螟发生动态监测，采用综合防治措施，可将草地螟 危害

Study on Supervision and Control of adult Beet Webworm

This paper studied the population dynamic regulation and control strategy according to overwintering beet webworm (Loxostege Sticticalis Linnaeus) from 1997 to 1998, it shows: (1)There are exotic and local beet webworms at same time in Hulan city of Heilongjiang Prorince.When a great of exotic beet webworms immigrate, the crops could be distroyed.(2)Overwintering beet webworms that appeared earlia is in middlee May, and peak of occurrence is in first June, and last stage is in last June. Active the is about one month.(3)The development of adult ovary and dissected supervision of it's matting status are one of evi dence as forcasting occurrence amount and time for young beet webworm.(4)According to dynamic supervision of beet webworm, as well adopting comprehensive prevention and control of method, it would be control of beet webworm's injury in minmum range.