Intercropping in cotton is of great significance, which helps to reduce the population of insect pests by attracting natural enemies to the field and helping to get stabilized yield and high profit advantage. The study was conducted with 4 intercrops, viz., sesame, Sesamum indicum L.; pigeonpea, Cajanus cajan L.; pearl millet, Pennisetum glaucum L.; and sorghum, Sorghum bicolor L. in an experimental area during 2016 and 2017 autumn season. The objective was to study the population of parasitoids influenced by the intercrops in cotton. This is a triangular relationship between the host, parasitoids, and environment. As Encarsia spp. (Hymenoptera: Aphelinidae) and Trichogramma spp. (Hymenoptera: Trichogrammatidae) are the main parasitoids of insect pests of cotton, thus the study was undertaken on these parasitoids. The results revealed that the highest parasitization of whitefly, Bemisia tabaci (Gennadius) pupae by Encarsia spp., was recorded in cotton-pigeonpea 1:1 (33.22%), which was at par with cotton-pigeonpea 2:1 (32.16%), whereas the second highest one was in cotton-sesame 1:1 (27.33%), while the lowest parasitization was recorded in the control (16.16%). On the activity of Trichogramma spp., the significant highest percent was recorded in cotton-sesame 1:1 (10.93%), while no activity was recorded in cotton-pigeonpea, cotton-sorghum, cotton-pearl millet, and control treatments.

中文翻译：

---

间作对寄生虫Encarsia spp的影响。和赤眼蜂属。印度棉田里

棉花间作具有重要意义，它通过吸引天敌到田间​​来帮助减少害虫的数量，并有助于获得稳定的产量和高利润优势。该研究是用4种间作进行的，即芝麻，芝麻。木豆，Cajanus cajan L .；珍珠小米，狼尾草。和高粱，高粱双色L.在2016年和2017年秋季的试验区。目的是研究受棉花间作影响的寄生虫种群。这是宿主，寄生虫和环境之间的三角关系。作为恩卡西亚菌。（膜翅目：Aphelinidae）和赤眼蜂属。（膜翅目：Trichogrammatidae）是棉花害虫的主要寄生虫，因此对这些寄生虫进行了研究。结果表明，在棉-天竺葵1：1（33.22％）中记录到了由Encarsia spp。引起的粉虱天粉虱（Bemisia tabaci（Gennadius）p）的最高寄生率，与棉天竺葵2：1（32.16％）相当。 ，而第二高的是棉芝麻1：1（27.33％），而对照中的寄生虫率最低（16.16％）。在棉铃虫的活性上，棉花-芝麻1：1的最高百分比记录为最高（10.93％），而棉-白豌豆，棉-高粱，棉-珍珠粟和对照处理均未记录到活性。对照中寄生率最低（16.16％）。在棉铃虫属的活动中，棉芝麻1：1记录到的最高百分比最高（10.93％），而棉-白豌豆，棉高粱，棉-珍珠粟和对照处理均未记录到活性。对照中寄生率最低（16.16％）。在棉铃虫属的活动中，棉芝麻1：1记录到的最高百分比最高（10.93％），而棉-白豌豆，棉高粱，棉-珍珠粟和对照处理均未记录到活性。