Extraction and bioassay of the sex pheromone of the red pear scale, Epidiaspis leperii (original) (raw)

Entomologia Experimentalis et Applicata, 1988

Abstract

The sex pheromone of Epidiaspis leperii Sign, females was extracted by immersing virgin females in five different solvents. Chloroform showed to be the best solvent. Bioassay in the field was carried out by using plastic cup traps baited with chloroform and acetone extracts. Chloroform extracts lured the highest number of E. leperii males as well as the red pear scale ectoparasite Aphytis mytilaspidis (Le Baron). Chloroform extracts became inactive after one day. The plastic cup trap was very effective for collecting the wingless males.

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