论文部分内容阅读
陪植植物治虫法是指能毒杀和驱除害虫、或能诱集天敌的植物陪植在作物的四周或行间,从防治作物害虫的一种方法。这种方法无毒、无污染、简便、省工省成本。一、利用陪植植物毒杀害虫在自然界中,有些植物具有毒杀害虫的作用,如日本金龟子嗜食有毒的七叶树和天竺葵的花而致死;大黑金龟子、黑皱金龟子和黑绒金龟子嗜食有毒素的蓖麻叶,食后即麻痹致死,因此蓖麻可用于金龟子类害虫如花生蛴螬的防治。每亩种300株,使蓖麻生
Accompany plant phytosanitary law refers to the poison can kill and repel pests, or to trap natural enemies of plants to plant around the crop or line, from the prevention and control of crop pests a method. This method is non-toxic, non-polluting, simple, provincial labor costs. First, the use of phytoplankton poisoning pests In nature, some plants have the role of poisonous insects, such as the Japanese chafer poisonous poisonous horse chestnut and geranium flowers and died; large black chafer, black wrinkled beetle and black velvet chafer eating Ricinus castor leaves, paralyzed to death after eating, so castor can be used for the prevention and treatment of chafer pests such as peanut 蛴 螬. 300 per acre species, so castor bean students