This study assesses the feasibility of using natural enemies for the control of Acanthoscelides obtectus Say and Zabrotes subfasciatus Boheman (Coleoptera: Chrysomelidae), key pests of stored dried beans, Phaseolus vulgaris L. (Fabales: Fabaceae). The predatory mites Blattisocius tarsalis Berlese (Acari: Ascidae) and Amblyseius swirskii Athias-Henriot (Acari: Phytoseiidae) were able to prey on A. obtectus eggs, reducing the bruchid population by more than 60% under both controlled and warehouse conditions. Therefore, they show good potential as biological agents for controlling this pest. The larval parasitoids Anisopteromalus calandrae Howard and Lariophagus distinguendus Förster (Hymenoptera: Pteromalidae) were both moderately effective (34–38% reduction) at suppressing A. obtectus populations, but when A. calandrae was combined with B. tarsalis, a significant improvement in control efficacy (81% reduction in emergence) was observed. Therefore, the release of A. calandrae combined with B. tarsalis seems to be a promising strategy for controlling A. obtectus. Neither B. tarsalis nor A. swirskii were able to prey on Z. subfasciatus eggs. Only the parasitoid A. calandrae was moderately effective (39% reduction) at supressing Z. subfasciatus populations. Further testing is needed to identify other natural enemies that can complement the action of A. calandrae in reducing Z. subfasciatus populations.

这项研究评估了使用天敌来控制Acanthoscelides obtectus Say和Zabrotes subfasciatus Boheman（鞘翅目：Chrysomelidae），储存的干豆的主要害虫菜豆（Phaseolus vulgaris L。）（Fabales：Fabaceae）的可行性。捕食性螨tar（Blattisocius tarsalis Berlese（Acari：Ascidae））和Amblyseius swirskii Athias-Henriot（Acari：Phytoseiidae）能够捕食扁形虫卵，在受控和仓库条件下，布鲁氏菌种群减少了60％以上。因此，它们显示出作为控制该害虫的生物制剂的良好潜力。幼虫类寄生动物Anisopteromalus calandrae Howard和Lariophagus distinguendus福斯特（膜翅目：金小蜂科）均中度有效（减少34-38％）在抑制A. obtectus种群，但是当A. calandrae用组合B.跗，在控制功效的显著改善（在出苗减少81％ ） 被观测到。因此，释放A. calandrae联合B.跗似乎是用于控制前景的策略A. obtectus。无论是B.跗也不A. swirskii能够猎物Z. subfasciatus鸡蛋。只有寄生拟南芥在抑制法氏梭状芽孢杆菌种群中具有中等效力（减少39％）。需要进一步的测试来确定其他自然天敌，这些天敌可以补充拟南芥在减少黑筋线虫种群中的作用。