Synergistic effect of Calendula officinalis on colonization and pest control of Orius sauteri in strawberry greenhouse in Northern China
Conversation biological control based on the utilization of functional plants can realize the synergistic colonization and sustainable pest control of natural enemies after the release of natural enemies,which is a research hotspot of agricultural sustainable development.To explore the effect of functional plants cooperating with predatory natural enemies to prevent and control pests in greenhouse during winter,this study systematically evaluated the effects of nectar plant,Calendula officinalis on the longevity and colonization of Orius sauteri.Without C.officinalis as the control,the study also compared the control effects on aphids and herbivorous mites on strawberries in greenhouse in winter.Results showed that compared with the control without C.officinalis,the existence of C.officinalis significantly increased the survival rate and average longevity of the female adult of O.sauteri,the lifespan of female adult reached 9.49 days in treatment,which was 53.6％longer than the lifespan in the control(6.18 days).The presence of C.officinalis significantly increased the population number in the second to fourth week after the release of O.sauteri,and significantly reduced the density of aphids and herbivorous mites on strawberry plants,indicating that C.officinalis enhanced strawberry pest control by supporting the survival and population colonization of O.sauteri.This study not only supports the ecological role of nectar plants in enhancing natural enemies and controlling pests,but also provides practical guidance for the diversified application and popularization of biological pest control methods for strawberries in winter greenhouses in northern China.
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万方数据
