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利用沼液代替农药防治柑桔树的红蜘蛛、黄蜘蛛、矢尖蚧、蚜虫等效果显著,柑桔树喷洒沼液后,红、黄蜘蛛在4～6小时内开始失去活动能力,逐渐死亡,杀灭率达95％以上;矢尖蚧在2天后开始变黑死亡脱落,杀灭率达90％以上;蚜虫第1天活动明显减弱,第2天基本停止活动,第3天死亡脱落,杀灭率达86％左右。同时还可显著提高柑桔果实产量。1990年我乡古井村徐正禄家有结果柑桔树78株,当年虫害较严重,柑桔总产仅750公斤,
The use of biogas slurry instead of pesticides to control citrus trees, red spider, yellow spider, cornucopia, aphids and other significant effect, citrus tree sprayed with biogas slurry, the red spider spider in 4 to 6 hours began to lose activity, and gradually died , Killing rate of more than 95%; Agrimony scale died darkening after 2 days, the killing rate of more than 90%; aphids activity was significantly reduced on the first day, basically stopped activity on the second day, died on the third day, Kill rate of about 86%. At the same time can also significantly improve citrus fruit production. In 1990, Xu Village, Gujing Village in our village, had 78 citrus trees, with more pests in that year. The total output of citrus was only 750 kilograms,