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通过增加显花植物的种类和显花时间来补充天敌的非猎物性营养源,以提高天敌的自然控害作用。研究了取食不同植物花后黑肩绿盲蝽后代(F1代)生长和捕食能力的变化。结果表明,黑肩绿盲蝽在取食盛花期的长柄菊、一点红、万寿菊和芝麻花后,其F1代雌若虫历期显著缩短;F1代4龄若虫及雌成虫对褐飞虱的捕食量显著提高。取食芝麻花、万寿菊后,其F1代黑肩绿盲蝽4龄若虫对褐飞虱卵的捕食能力分别比对照提高了140.8%、79.0%,取食万寿菊后,对褐飞虱雌成虫的捕食能力提高了35.2%。
By increasing the species of flowering plants and blooming time to supplement the non-prey nutrition source of natural enemies, natural enemies can be controlled naturally. The changes of growth and predation ability of Apodemus agrarius progenies (F1 generation) after feeding on different plants were studied. The results showed that the number of female Nymphs on the F1 generation was significantly shortened after feeding on Apocynum chinensis, Primrose, Marigold and Sesame, and the predation on the 4th instar nymphs and female adults of F1 on BPH infestation Significantly increased. After feeding on sesame flower and marigold, the predation ability of 4th instar nymphs on F1 generation black-lined green bugs increased by 140.8% and 79.0%, respectively, compared with the control. After feeding on marigolds, the predation ability of N. lugens female adults Increased by 35.2%.