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对沈阳地区亚洲玉米螟落卵情况进行多年系统调查。结果表明,沈阳地区亚洲玉米螟年度落卵结束时间明显延长,已出现第三代卵,该世代幼虫可安全越冬,沈阳地区亚洲玉米螟由传统二代区转变为二、三代混生区。
The systematic investigation of the fall of eggs in the Asian corn borer in Shenyang for many years was conducted. The results showed that the annual oviposition time of the Asian corn borer in Shenyang was significantly prolonged, and the third generation of eggs appeared. The larvae of this generation were safe to win. The Asian corn borer in Shenyang changed from the traditional second generation to the second and third generation mixed area.