论文部分内容阅读
查明了夏播花生田蛴螬的优势种主要有暗黑鳃金龟,铜绿丽金龟和大黑鳃金龟三种,分别占58·7%、33·8%和7·5%。花生田蛴螬为三种优势种的混合种群,危害时间长并严重。7月中下旬始见低龄幼虫危害花生的果针和荚果,危害盛期为8月中下旬至收获。不同底肥对蛴螬的发生量有较大的影响,蛴螬成虫对草木灰、鸡粪有明显的趋性,田间幼虫量多,对花生危害严重;蛴螬成虫对羊粪、牛粪的趋性不明显,田间幼虫量少,对花生危害轻。通过不同药剂及处理表明:乐斯本和苦参碱防效较好,达70%以上,在播种期用药盖种,在花生生长期蛴螬卵孵盛期用药液灌根,能起到一定的防治效果。
The dominant species of summer sowing peanut fields were identified as Diabrotidae, Cucurbita pelagora and Chaenomeles gracilis, accounting for 58.7%, 33.8% and 7.5% respectively. Peanut field 蛴 螬 is a mixed population of three dominant species, long-lasting and serious harm. In late July saw the young pests endanger peanut needles and pods, the damaging period of late August to harvest. Different base fertilizers have a greater impact on the occurrence of catfish, cats adults have obvious tendency to grass ash, chicken manure, field larvae more serious harm to peanuts; catfish adults on sheep manure, cow dung tendon is not obvious, Field larvae less harmful to peanuts light. Through different agents and treatment showed that: Lisben and matrine better control effect, up to 70%, cover the seeds in the sowing period, in the peanut growth stage Euglena anguillicaudatus irrigation with medicine, can play a certain The prevention and treatment effect.