Invasive Species Compendium

Detailed coverage of invasive species threatening livelihoods and the environment worldwide

Abstract

Mortality factors of Sesamia nonagrioides Lef. (Lepidoptera: Noctuidea) in Portugal. I. Parasitoids.

Abstract

Parasitoids have been shown to be less efficient in controlling larval populations of Sesamia nonagrioides, in comparison with entomopathogenic agents. The tachinid Lydella thompsoni proved to be the most important parasitoid and its biocontrol activity was effective throughout the 2nd and 3rd generation of the noctuid. Due to temporal desynchronization between the parasitoid's 1st generation and that of its host, parasitism caused by L. thompsoni during the 1st generation of the noctuid was negligible. During the 1st generation, parasitism, despite little significance, was carried out by another tachinid, Pseudoperichaeta nigrolineata.