Species composition of thrips on garden pea (snap pea), Pisum sativum L., and broad bean, Vicia faba L.

Abstract

In order to clarify the thrips species composition on garden pea (snap pea), Pisum sativum ssp. hortense Asch., and broad bean, Vicia faba L., we investigated garden pea fields where different pesticides were sprayed at Kagoshima Prefectural Institute for Agricultural Development and from farmer’s pea fields (pea, 7 fields; broad bean, 5 fields) from Autumn to Winter. On garden pea, Thrips hawaiiensis (Morgan) and Frankliniella intonsa (Trybom) occurred, and T. hawaiiensis dominated throughout the investigation at both locations: Kagoshima Prefectural Institute for Agricultural Development and farmer’s fields. We considered that control by pesticides might not affect the thrips species composition. On broad bean, Thrips hawaiiensis (Morgan) also dominated; however, the proportion of F. intonsa on broad bean was higher (ca. 15 to 30% on average) than that of garden pea from October to November.