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本文系1975—77年在山东诸城县蛴螬发生区研究的结果。重点研究了它的生活史,猖獗发生区妁生态条件,发生为害与作物物候期的关系,以及夏播期和秋播期的防治方法。结果表明:毛黄鳃金龟是在耕制改革后夏播作物生长期为害最重的蛴螬之一,猖獗发生区多分布在河流沿岸的冲积平原或山底平地,一般多为:沙壤或轻沙壤土,土质细致,土层深厚,通透性强,一年两熟,有良好的灌溉条件。生活史一年一代,以成虫和少数幼虫与蛹越冬。三月下旬至四月上旬,小麦起身时,成虫开始出土交尾、产卵,到了小麦黄熟至收割时,幼虫孵化,卵期平均22.3天。一龄幼虫为腐食性,平均历期29天。夏播作物定苗后,二龄幼虫进入为害期,平均历期23.2天。八月中下旬为三龄幼虫盛发期,夏播越晚,受害越重。秋播期继续为害麦苗。九月下旬,老熟幼虫开始下移化蛹,三龄幼虫历期103天,少数越冬幼虫历期则在250天以上。夏播期采用3.5%和5%辛硫磷颗粒剂每亩4斤,种药混施,或玥丙体六六六(20%666)每亩0.5斤,配成毒土沟施,虫口减退率达80—90%以上,具有明显的保苗增产效果。一龄幼虫发生期用50%辛硫磷乳剂0.2—0.3%用量拌种,虫口减退率只7.2—32.6%,防效很差。但小麦秋播期用0.2%用量拌种,保苗效果达90.4—95.2%。
This article is from 1975 to 77 in Shandong Zhucheng County, the results of the study area. It focuses on the study of its life history, the prevalence of ecotourism, the relationship between the occurrence of damage and the phenophase of crops, and the control methods of summer sowing and autumn sowing. The results showed that: Grifola frondosa was one of the most damaging crops during the summer sowing period after the tillage reform. The occurrence of rampant areas was mostly distributed in the alluvial plain or hillside of the rivers, mostly sandy soil or light Sandy loam, meticulous soil, deep soil, strong permeability, two crops a year, with good irrigation conditions. Life history of a generation, with adult and a few larvae and pupae wintering. Late March to early April, when the wheat got up, the adults began unearthed copulation, spawning, until the wheat ripening to harvest, the larvae hatch, the average egg life of 22.3 days. The first instar larvae are rotten and have an average duration of 29 days. Summer planting crop Dingmiao, the second instar larvae into the damage period, the average duration of 23.2 days. In late August for the third instar larvae Shengfa period, the late summer broadcast, the more victims. Autumn sowing continue to harm wheat seedlings. In late September, the mature larvae began to migrate to pupae, the larvae of the third instar lasted for 103 days and the larvae of the overwintering larvae lasted for more than 250 days. Summer sowing period with 3.5% and 5% phoxim granules 4 pounds per acre, mixed with pesticides, or six hundred sixty-six (20% 666) Acre 0.5 kg, dubbed poison soil ditch, insects population decline Rate of more than 80-90%, with obvious seedling yield increase effect. The first instar larvae with 50% phoxim 0.2-0.3% amount of seed dressing, insect population decline rate of only 7.2-32.6%, very poor control. However, the amount of 0.2% wheat seed sowing seed dressing, seedling effect of 90.4-95.2%.