Root-knot nematodes are one of the most harmful plant-parasitic nematodes (PPNs). In this paper, the predation of Stratiolaelaps scimitus against Meloidogyne incognita was tested in an individual arena, and the control efficiency of the mite on the nematode in the water spinach (Ipomoea aquatica) rhizosphere was studied with a pot experiment. The results showed that S. scimitus could develop normally and complete its life cycle by feeding on second-stage juveniles of M. incognita (Mi-J2). The consumption rate of a 24 h starving female mite on Mi-J2 increased with the increase of prey density at 25 °C. Among the starvation treatments, the nematode consumption rate of a female mite starved for 96 h at 25 °C was highest; and among temperature treatments, the maximum consumption rate of a 24 h starving female mite on Mi-J2 was at 28 °C. The number of M. incognita in the spinach rhizosphere could be reduced effectively by releasing S. scimitus into rhizosphere soil, and 400 mites per pot was the optimum releasing density in which the numbers of root knots and egg masses decreased by 50.9% and 62.8%, respectively. Though we have gained a greater understanding of S. scimitus as a predator of M. incognita, the biocontrol of M. incognita using S. scimitus under field conditions remains unknown and requires further study.

根结线虫是最有害的植物寄生线虫（PPN）之一。在本文中，捕食Stratiolaelaps scimitus对南方根结线虫的个体中竞技场进行了测试，并在所述水菠菜线虫螨的控制效率（蕹）根际用盆栽试验研究。结果表明，S. scimitus能够正常发育，并通过对第二级幼体饲喂完成其生命周期南方根结线虫（祢-J2）。小米24小时饥饿的雌螨的食用率-J2随着25°C下猎物密度的增加而增加。在饥饿处理中，在25°C下饥饿96 h的雌性螨的线虫消耗率最高。在温度处理中，Mi -J2上饥饿24小时的雌螨的最大消耗速率为28°C。的数量南方根结线虫在菠菜根际能够有效通过释放被降低S. scimitus成根际土壤中，每盆400个螨为最佳释放密度，其中根结和卵块的数目减少了50.9％和62.8％ ， 分别。虽然我们获得了更深入的了解S. scimitus作为捕食南方根结线虫，生物防治根结线虫在田间条件下使用S. scimitus仍然未知，需要进一步研究。