Fruit flies are one of the main types of pests found on fruit crops in Réunion. However, the control methods used up to now have two drawbacks: impregnation of the fruit if insecticides are applied directly, and the development of resistance in the flies. In response to these constraints, researchers from CIRAD and their partners tested and proved the efficacy of a new system: mass trapping. It makes it possible to use very small quantities of insecticide, without any direct application on the fruits. The traps contain a sachet of food attractant and a small quantity of insecticide. The researchers concentrated on two fly species for which promising attractants already exist for the females of the species. Their trials served to compare various components of the trap and the possible combinations, using different attractant formulas and traps. The results pinpointed the most effective traps and attractants for use in trapping systems.
via CIRAD - Actualités / News http://ift.tt/1rGmXrf
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