论文部分内容阅读
(一)空心莲子草叶(虫甲)的生物学特性: 空心莲子草叶(虫甲)(Agasicles hygrophila)属鞘翅目(Coleoptera)叶(虫甲)科(Chrysomelidae),完全变态。叶(虫甲)幼虫期为8～12天,每代幼虫的总取食期可达18～22天。成虫寿命平均48天(18～69天)。成虫期内也能取食叶片。当幼虫和成虫食尽叶片后,均可钻入茎秆的径腔,食尽全株或在茎腔内化蛹,特别在取食茎节时,能使植株无法再长新的组织。因此,当叶(虫甲)取食8周时,即可控制腋芽生长,全株被摧毁。叶(虫甲)除直接取食植株外,还可分泌对该草的有毒物质,抑制其生长。而且被取食的伤口还能引起病原微生物的侵染,
(A) the biological characteristics of Aconitum (Agkistrodon) Leaf: Agropyron (Agrons) (Agkistrodon) (Coleoptera) is a family (Chrysomelidae), completely metamorphosed. Leaf (insect) larvae of 8 to 12 days, each generation of larvae total feeding time of up to 18 to 22 days. Adult life expectancy average 48 days (18 to 69 days). Adult also can feed on leaves. When the larvae and adults eat the leaves, can be drilled into the diameter of the stem cavity, eat the whole plant or in the stem cavity pupation, especially in feeding the stem, the plant can no longer grow new tissue. Therefore, when the leaves (insects) feeding 8 weeks, you can control the growth of axillary buds, the whole plant was destroyed. Leaf (insect) in addition to direct feeding plants, but also the secretion of toxic substances on the grass, inhibiting its growth. And the wounds that are eaten can also cause the infection of pathogenic microorganisms,