Invasive Species Compendium

Detailed coverage of invasive species threatening livelihoods and the environment worldwide

Abstract

Flight range of the moth of the cotton leaf worm Spodoptera littoralis (Bois.).

Abstract

About 3000 dye-marked laboratory-reared adults of Spodoptera littoralis (Boisd.) were released in fields of cotton and groundnut near Cairo, Egypt, on four dates in the period June-August 1971. Releases were made at dusk, and illuminated white screens were used to collect moths during a period of 4 h in the ensuing night at various points in the area. The total numbers of marked moths recaptured at distances of 250, 500, 1000 and 1500 m were 21, 28, 7 and 2, respectively. These results are discussed in relation to the need for the moths to obtain nectar if normal egg-production is to take place.