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我县种植黄、红麻十万亩。近年由于黄麻夜蛾发生面积大,为害重,严重影响产量,发生严重时,只剩下叶脉、叶柄,花和果实也遭食害,如一九七四年许巷公社麻田大面积受害,胜利大队95亩麻田,出动劳力430余人,提到黄麻夜蛾幼虫345斤,以往每年都用化学农药进行防治,虽有一定效果,但麻株高,喷药劳动强度大,喷药时,人如雨淋一样,对人体很不安全,而且杀死田间自然天敌,促使该虫日趋严重。
My county planted yellow, kenaf 100,000 mu. In recent years, as a result of the large area of the yellow moth, heavy damage seriously affect the yield, in serious cases, leaving only the veins, petioles, flowers and fruits also suffered food damage, such as Xu Xiang commune hemp field in 1974 a large area victims, 95 acres of Ma Tian, labor dispatched more than 430 people, referring to 335 pounds of jute moth larvae, in the past every year with chemical pesticides for prevention and treatment, although a certain effect, hemp plant height, spraying labor intensity, when spraying, Like showering, it is very unsafe to human beings and kills natural predators in the field, causing the insects to worsen.