In this study, the effect of strip intercropping green bean (GB), Phaseolus vulgaris L., with garlic (G), Allium sativum L., in three row ratios (3GB:5G, 3GB:8G and 3GB:11G) was assessed on two-spotted spider mite (TSSM), Tetranychus urticae Koch, compared with green bean sole crop over two growing seasons, in 2017 and 2018. The results indicated that intercrops reduced the densities of T. urticae eggs and mobile forms on the vegetative growth, the flowering, and the bean expansion stages of green bean plants compared with sole crop. In this study, seven predators of T. urticae including Stethorus gilvifrons (Mulsant), Orius niger (Wolff), Neoseiulus zwoelferi (Dosse), Chrysoperla carnea (Stephens), Geocoris punctipes (Say), Scolothrips sexmaculatus Pergande, and Nabis pseudoferus (Remane) were collected on TSSM-infested green bean plants during the two growing seasons. Among them, S. gilvifrons and O. niger were the main predators of TSSM on green bean plants in the two growing seasons. Furthermore, the densities of O. niger were significantly higher in intercrops on the vegetative growth and the flowering stages of green bean compared with sole crop, whereas no significant difference was observed in the densities of S. gilvifrons between intercrops and sole crop in 2017 and 2018. Moreover, the values of the Shannon diversity index (H′) and Pielou’s evenness index (J′) for the composition of TSSM predators were greater in the three intercrops compared with sole crop for the entire growing seasons 2017/2018. On the other hand, the land equivalent ratio (LER), which is used to assess the yield benefit in intercrops, was greater than one in intercrops, especially in the 3GB:5G ratio (1.29 in 2017 and 1.40 in 2018). These results indicated that strip intercropping green bean with garlic could be effective in the control of T. urticae in green bean fields.

在这项研究中，以三种排比（3GB：5G，3GB：8G和3GB：11G）评估了条间套种青豆（Phaseolus vulgaris L.）与大蒜（G），大蒜（Allium sativum L.）的效果在2017年和2018年的两个生长季中，在两个斑点的叶螨（Testranychus urticae Koch）上与绿豆单一作物进行了比较。结果表明，间作降低了毛状锥虫卵的密度和无性系对营养生长的影响与单一作物相比，绿豆植物的开花，开花和豆的扩张阶段。在这项研究中，七大鳄T.螨，包括食螨gilvifrons（瓢虫），小花曲霉（沃尔夫）在两个生长季节中，在受TSSM侵扰的绿豆植物上收集了新雪草（Dosse），角叉菜（Chrysoperla carnea）（斯蒂芬斯），蓬头粉虱（Geocoris punctipes）（Say），Scolothrips sexmaculatus Pergande和Nabis pseudoferus（Remane）。其中，S. gilvifrons和O.尼日尔是TSSM对两个生长季节绿豆植物的主要天敌。此外，密度O.尼日尔是在营养生长间作与单一作物相比，绿豆开花阶段显著较高，而在密度未见显著差异S. gilvifrons在2017年和2018年间，农作物和单一作物之间的相互关系。此外，三个农作物的香农多样性指数（H'）和皮耶鲁均匀度指数（J'）在三个农作物中均大于单一作物2017/2018生长季节。另一方面，用于评估农作物间收益收益的土地当量比（LER）大于农作物间的土地当量比，特别是3GB：5G比率（2017年为1.29,2018年为1.40）。这些结果表明，在大豆中套种青蒜可以有效控制青豆田中的荨麻疹。