Their occurrence trait in winter broad bean field and the inhibiting effect of the parasitic enemies to liriomyza huidobrensis were revealed 揭示了南美斑潜蝇及其寄生蜂在蚕豆田中的发生规律和寄生蜂对南美斑潜蝇的自然控制作用。
2.
These results implied that the reduction of predatory and parasitism natural control function should be one of the crucial factors to induce the outbreak of insect pest populations in rice fields applied with excessive nitrogenous fertilizer 这些结果表明天敌对害虫自然控制作用的下降可能是稻田过量施用氮肥后害虫种群增加的主要原因之一。
