Neotropical Entomology ( IF 1.4 ) Pub Date : 2022-07-13 , DOI: 10.1007/s13744-022-00982-7 Letícia Pereira Silva 1 , Ivana Lemos Souza 1 , Rosangela Cristina Marucci 1 , Melinda Guzman-Martinez 2
Thrips (Thysanoptera, Thripidae) are pests of several crops and their chemical control is mainly hindered by their thigmotactic habits, which in turn allows the use of biological control agents with similar habits. Orius (Hemiptera: Anthocoridae) are effective control agents for thrips and are commercialized in many countries. Habitat overlap exists between Doru luteipes (Scudder) (Dermaptera: Forficulidae) and thrips, making D. luteipes a potential predator in the control of these insects. Our goals were to confirm the predatory ability of D. luteipes when exposed to thrips, Caliothrips phaseoli (Hood), and to evaluate the interaction between D. luteipes and Orius insidiosus Say for the control of thrips using behavioral and feeding preference tests. The ability of D. luteipes and O. insidiosus to prey on thrips at all stages was tested by predation bioassays; adults of D. luteipes consumed 210.9 ± 23.2 thrips per day, while adults of O. insidiosus consumed 32.4 ± 3.6 thrips per day. Intraguild predation was absent, and the predatory behavior feeding of the two predatory species was not altered in the presence of the other predator. In addition, these predators forage at different times–O. insidiosus during the day and D. luteipes at night, indicating that both predators do not interact negatively, allowing the use of both in a biological pest control program for thrips.
中文翻译:
Doru luteipes(革翅目:Forficulidae)和 Orius insidiosus(半翅目:Anthocoridae)作为蓟马的夜间和白天捕食者
蓟马 (Thysanoptera, Thripidae) 是多种作物的害虫,其化学防治主要受其触趋习性的阻碍,这反过来又允许使用具有相似习性的生物防治剂。Orius(半翅目:Anthocoridae)是蓟马的有效控制剂,并在许多国家商业化。Doru luteipes (Scudder)(革翅目:Forficulidae)和蓟马之间存在栖息地重叠,使D. luteipes成为控制这些昆虫的潜在捕食者。我们的目标是确认D. luteipes在暴露于蓟马Caliothrips phaseoli (Hood) 时的捕食能力,并评估D. luteipes和Orius insidiosus Say 使用行为和摄食偏好测试来控制蓟马。通过捕食生物测定法测试了D. luteipes和O. insidiosus在所有阶段捕食蓟马的能力;D. luteipes的成虫每天消耗 210.9 ± 23.2 个蓟马,而O. insidiosus的成虫每天消耗 32.4 ± 3.6 个蓟马。不存在行内捕食,并且两种捕食物种的捕食行为在其他捕食者存在的情况下没有改变。此外,这些捕食者在不同时间觅食——O. insidiosus在白天和D. luteipes在晚上,这表明这两种捕食者不会产生负面影响,从而允许将两者用于蓟马的生物害虫控制计划。