Invasive Species Compendium

Detailed coverage of invasive species threatening livelihoods and the environment worldwide

Abstract

Field evaluation of attractants in the trapping of Anastrepha spp. (Diptera, Tephritidae), pests of fruit trees in tropical America. I. Molasses and torula yeast.

Abstract

In September-November 1984, modified McPhail traps were used in a guava orchard in the Province of Alajuela, Costa Rica, to compare the effectiveness of 2 attractants (10% molasses and 10% Torula yeast) in trapping Anastrepha spp. The examples of Anastrepha caught comprised A. striata (67%), A. serpentina (18%) and A. obliqua (15%). Torula yeast was much more effective than molasses, the ratio between the attractants being 8.4:1. The recommendations made include the commercial production of Torula yeast in Latin America for use in baits.