Effects of four non-crop plants on life history traits of the lady beetle Harmonia axyridis

文献类型： 外文期刊

第一作者： Wang, Yusha

作者： Wang, Yusha;Yao, Fengluan;Basiri, Shirin E.;Amiens-Desneux, Edwige;Campos, Mateus R.;Lavoir, Anne-Violette;Desneux, Nicolas;Yao, Fengluan;Soares, Marianne A.

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关键词： floral food; conservation biological control; longevity; fecundity; weight; predation

期刊名称：ENTOMOLOGIA GENERALIS （ 影响因子：5.625； 五年影响因子：4.207 ）

ISSN： 0171-8177

年卷期： 2020 年 40 卷 3 期

页码：

收录情况： SCI

摘要： Non-crop plants are important for the fitness and abundance of coccinellids in conservation biological control. The objectives of this study were to evaluate the impact of four frequently used non-crop plant species in habitat management, i.e., Vicia sativa (Fabaceae), Fagopyrum esculentum (Polygonaceae), Coriandrum sativum (Apiaceae) and Calendula officinalis (Asteraceae) on the longevity, prey consumption, weight and fecundity of the multicolored Asian ladybeetle Harmonia axyridis (Coleoptera: Coccinellidae). Under laboratory conditions, provision of V sativa, F. esculentum and C. sativum significantly increased longevity, but only F. esculentum significantly reduced daily weight loss of adult females compared to water only (when no prey was provided). Feeding on plant food resources from these non-crop plants reduced prey consumption and, with the exception of V. sativa, greatly decreased daily weight gain of both adult females and males in the presence of Ephestia kuehniella eggs. Feeding H. axyridis females with both non-crop plants and aphids had no effect on the pre-oviposition period when compared with aphids only. However, the presence of C. sativum led to an increase of H. axyridis fecundity, whereas presence of C. officinalis led to a 22% decrease in ladybeetle fecundity (when compared to the treatment with only aphids). Vicia sativa, F. esculentum and especially C. sativum showed benefits on the survival and/or reproduction of H. axyridis and may be candidates for non-crop plants that are used to diversify agro-ecosystems to boost biological control. Calendula officinalis, however, could be intercropped as a companion plant in H. axyridis-invaded areas to enhance the competitiveness of native biological control agents (pending C. officinalis does not impact negatively these species).

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