酒泉市戈壁日光温室人参果种植面积大、效益好，但红蜘蛛发生严重，化学防治导致农药残留超标，影响果品质量，急需绿色生态防控技术。为了选择综合性状最佳的天敌种类及投放数量，于2019年引进智利小植绥螨(Phytoseiulus persimilis Athias-Henriot)、胡瓜钝绥螨[Amblyseius cucumeris(Oudemans)]和巴氏新小绥螨(Neoseiulus barkeri)进行了防效试验。结果表明，投放智利小植绥螨50头/株、胡瓜钝绥螨246头/株、巴氏新小绥螨46头/株对人参果红蜘蛛均有较好的抑制作用，平均生物防效分别为83.36%、75.36%、87.06%。投放巴氏新小绥螨246～369头/株对人参果红蜘蛛有明显防治效果，平均生物防效分别为90.05%~91.85%。

The planting area and the economic benefit of ginseng fruit production in Gobi solar greenhouses of Jiuquan are magnificent, but spider mite occurrence is severe, and chemical control causes excessive pesticide residues affecting the quality of fruit, therefore, it is urgent to demonstrate and promote green ecological prevention and control technology. In 2019, Phytoseiulus persimilis Athias-Henriot, Amblyseius cucumeris(Oudemans) and Neoseiulus barkeri were introduced into the National Gobi Agricultural Demonstration Park in Dongdong Town, Suzhou District to carry out efficacy tests. The results showed that Phytoseiulus persimilis Athias-Henriot, Amblyseius cucumeris(Oudemans) and Neoseiulus barkeri had good biocontrol effects on the red mite of ginseng fruit, and the average biological control effect were 83.36%, 75.36 % and 87.06%, respectively. Specifically, the release of 246 to 369 capita per plant of Neoseiulus barkeri was significantly effective in control, of which, the average biological control effects ranged from 90.05% to 91.85%.

S436.41

甘肃省青年科技基金项目(20JR5RF610)；甘肃省委组织部陇原青年创新创业人才项目( 2021LQGR70)。