论文部分内容阅读
粟穗螟(Mampava bipunctella Ragonot)当地群众又称穗鑽心虫、穗绵虫、裹粘虫等,是为害谷子、高粱穗部一大害虫,在当地呈间歇性大发生,危害严重。据桓台县测定,夏谷单穗平均有虫10头可減产28.3%;夏高粱单穗平均有虫44头,減产达45.6%。粟穗螟不仅在田间为害,而且在场间堆垛中也能继续食害籽粒,对产量和品质影响极大。生物学特性一、发生代数和时期:粟穗螟在当地一年发生两代,第一代主要为害春谷和二发苗谷,第二代为害春、夏高梁和夏谷。
Spike borers (Mampava bipunctella Ragonot) The local people, also known as spike borer, spike moth, wrapped armyworms, etc., is the damage of millet, sorghum spike a large pest, intermittently occurred in the local serious harm. According to the determination of Huantai County, an average of 10 single summer ears can be cut by 28.3% of pests; summer sorghum an average of 44 insects per head, yield reduction of 45.6%. Corn borer is not only harmful in the field, but also in the field stacking can also continue to eat grain, yield and quality greatly affected. Biological characteristics First, the occurrence of algebra and period: Millet borer occurred two generations a year in the local area, the first generation of major damage to the Spring Valley and two hair Miao Valley, the second generation of damaging spring, summer sorghum and summer valley.