Life table parameters and susceptibility levels of Hercinothrips femoralis (Reuter, 1891) (Thysanoptera: Thripidae) to spinosad and abamectin

The banded greenhouse thrips, Hercinothrips femoralis (Reuter, 1891) (Thysanoptera: Thripidae), is a tropical-origin species that has been identified on fruits, vegetables, ornamental and industrial crops in certain regions, such as Africa, the Americas, Europe, Oceania, and Asia. This study aimed to provide essential data on the biology and management of H. femoralis. The research was conducted in 2024 at Plant Protection Department Laboratory of Akdeniz University. The H. femoralis population was maintained as a stock culture on green bean pods. Experiments were conducted at 25±1ºC, with 65±10% relative humidity and a 16:8 h photoperiod. Results indicated a total development time from egg to adult was 20.82 days. Development time of the egg, first instar, second instar, prepupa, and pupa stages were 9.0, 2.85, 4.0, 1.41, and 3.56 days, respectively. The total adult longevity was 74.88 days, and the mean fecundity was 132.62 offspring per female. In feeding tests, adults caused characteristic damage on bean, pepper, cucumber, and banana fruits. respectively. Life table parameters indicated that H. femoralis can reproduce easily under suitable climates and hosts, causing significant economic losses. In laboratory bioassay the recommended doses of spinosad and abamectin caused 100% and 94% mortality in H. femoralis, respectively. The high efficacy of spinosad and abamectin against H. femoralis demonstrated in this study could be considered in the development of chemical control strategies.