Universidade Federal de Pelotas (UFPel), Departamento de Fitossanidade, Av. Eliseu Maciel, Campus Universitário, s/n, 96160-000 Capão do Leão, RS, Brazil.
Empresa de Pesquisa Agropecuária e Extensão Rural de Santa Catarina, Centro de Pesquisa para Agricultura Familiar (EPAGRI/CEPAF), Rua Servidão Ferdinando Tusset, s/n, 89801-970 Chapecó, SC, Brazil.
An Acad Bras Cienc. 2024 Oct 7;96(4):e20240632. doi: 10.1590/0001-3765202420240632. eCollection 2024.
Telenomus remus (Hymenoptera: Scelionidae) is an efficient parasitoid of Spodoptera eggs. However, biological control programs require taxonomic, bioecological and behavioral studies of biological agents. Although the performance of T. remus in pest control has been evaluated, little is known about its behavioral aspects that can influence IPM tactics. The aim of this study was therefore to study the parameters related to the oviposition behavior of T. remus on Spodoptera frugiperda (Lepidoptera: Noctuidae) eggs. The experiment was conducted in the laboratory, where 17 females were transferred individually to arenas containing a mass of S. frugiperda eggs. Oviposition behavior was recorded for 30 minutes. The average walking speed of the females was 0.116 mm.s-1 and the total distance covered was 203.3 mm. The females remained on the egg masses for an average of 16.7 min, which corresponds to more than half of the total time. The average number of parasitized eggs was 15.1 per female in 30 minutes. Females with larger antennae had lower values for average speed and total distance covered. The results of the parameters evaluated show the standard oviposition behavior of T. remus females on S. frugiperda eggs and help us to better understand the species.
长尾管蚜小蜂（膜翅目：长尾小蜂科）是一种有效的斜纹夜蛾卵寄生蜂。然而，生物防治计划需要对生物制剂进行分类学、生物生态学和行为学研究。尽管已经评估了长尾管蚜小蜂在害虫防治中的性能，但对其可能影响 IPM 策略的行为方面知之甚少。因此，本研究的目的是研究长尾管蚜小蜂在斜纹夜蛾卵上产卵行为的相关参数。该实验在实验室进行，将 17 只雌性个体分别转移到含有大量斜纹夜蛾卵的竞技场中。记录了 30 分钟的产卵行为。雌性的平均行走速度为 0.116 mm.s-1，总覆盖距离为 203.3 mm。雌性在卵块上停留的平均时间为 16.7 分钟，超过总时间的一半。在 30 分钟内，每只雌性平均寄生了 15.1 个卵。触角较大的雌性平均速度和总覆盖距离较低。评估参数的结果显示了长尾管蚜小蜂雌虫在斜纹夜蛾卵上的标准产卵行为，有助于我们更好地了解该物种。
