中日合作研究了增效成分对桐酸酯类系列品种对玉米象的防治效果。试验表明含增效成分的桐酸酯对玉米象具有明显的致死效果,致死率为70%￣87.5%,未添加增效成分的处理致死率只有2.5%￣5%。不含增效成分的桐酸酯处理玉米象的平均产卵数是含增效成分处理的2.3倍,含增效成分的桐酸酯具有明显抑制害虫产卵的作用,对卵的羽化具有完全的抑制作用。 The cooperation between China and Japan on the control effect of the synergistic components on the maize elephants was studied. Tests showed that the synergistic effect of the compound of eleostearic acid has the obvious lethal effect on the corn, with the lethality of 70% ~ 87.5% and the untreated synergistic component of the lethality rate of only 2.5% ~ 5%. The results showed that the average number of spawning numbers of fungal elephants treated with the herbicide of eleostearic acid with no synergistic composition was 2.3 times that of the synergistic composition. The herbicides containing synergistic ingredients could significantly inhibit the oviposition of pests and had complete egg emergence Inhibition.