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玉米螟 Ostrinia furnacalis Guene″e 是为害玉米的主要害虫,在吉林省一年发生1—2代,在二代区以第一代幼虫为害玉米最重。据五年调查统计寄生在玉米螟幼虫和卵上的天敌有十余种,其中寄生在越冬代幼虫的天敌主要有厉寄蝇 Lydella grisesceus R—D,螟虫长距茧蜂Macrocentrus linearis Nees、卵孢白僵菌 Beauueria tanella,细菌 Serrafia sp.,微孢子虫 Nosema pyrausta 等;卵寄生蜂一种。这几种天敌对玉米螟发生有明显的抑制作用。但目前在玉米螟测报和防治上利用天敌还不够普遍,特别是尚未见到玉米螟越冬代幼虫化蛹盛期和一代卵天敌作用的有关报道。
Corn borer Ostrinia furnacalis Guene "e is the main pest of corn, occurring in Jilin Province 1-2 generations a year, in the second generation of the first generation of corn-larvae maize damage.According to the five-year survey statistics on the corn borer larvae and There are more than ten kinds of natural enemies on the eggs. Among the natural enemies parasitized in the overwintering larvae are Lydella grisesceus R-D, Macrocentrus linearis Nees, Beauueria tanella, Serrafia sp. Nosema pyrausta etc .; egg parasitic wasp A. These natural enemies have obvious inhibitory effect on the occurrence of corn borers.But the use of natural enemies in the report and prevention and control of corn borers is not yet enough common, in particular, has not yet seen the corn borer overwinter Generation larvae of pupation and the generation of egg natural enemies of the role of the relevant reports.