论文部分内容阅读
今年,在省委的亲切关怀和地委的直接领导下,雁北区人民遵照毛主席“路线是个纲,纲举目张”的伟大教导,团结一致,协同作战,从五月十六日至六月十二日,进行了飞机防治共飞行564架次防治面积十七万八千五百九十九亩,杀虫效果达90％以上,取得了很大成绩,有效地保护了森林资源。现将治虫情况介绍如下。一、形态概述成虫:雌雄成虫易于区别,它们虫体基色均黑,富有浅黄色茸毛,但雌虫密复黄色茸毛比雄虫明显,前者为黄褐色,后者呈黑褐色。雌虫体长12—14毫米,雄虫体长10—12毫米。成虫触角:雌虫稍短于体长;雄虫约与体长相等。触角鞭部各节颜色雌雄不同:雌虫鞭部的每一亚节的前1/3部分为黑色,后2/3为银灰色;雄虫鞭部每一亚节
This year, under the cordial care of the provincial party committee and the direct leadership of the prefectural Party committee, people of Yanbei District followed the great teachings of Chairman Mao on “the line is a key link and the outline of the program.” From May 16 to June 10 On the 2nd, a total of 564 sorties of prevention and control flights were carried out, covering an area of 178,999 hectares and a pesticidal effect of over 90%. Great achievements have been made to effectively protect the forest resources. The pest control situation is as follows now. First, the morphological profile Adult: male and female adults are easy to distinguish, their body color is black, rich in light yellow hair, but female dense yellow hair than male obviously, the former is brown, which was dark brown. Female body length 12-14 mm, male body length 10-12 mm. Adult antennae: female slightly shorter than body length; male about the same body length. Each section of the antennae whip color male and female is different: the first 1/3 of each sub-section of the female whip is black, 2/3 silver gray; Male whip each sub-section