Abstract
Laboratory and field tests were conducted with female sex pheromone extracts in 11 species of tortricids. These included Grapholitha molesta (Busck), Hedia nubiferana Haworth, Carpocapsa pomonella (L.), Paralobcsia viteana (Clemens), Ancylis comptana fragariae (Walsh & Riley), of the subfamily Olethreutinae, and Argyrotaenia velutinana (Walker) A. quadrifaciana Fernald, Archips argyrospilus (Walker), A. mortuanus Kearfott, Choristoneura rosaceana (Harris), and Pandcmis limitata (Robinson) of the Tortricinae. A slight male response to pheromone extracts of females in other species suggested similar but not identical pheromone structures. Field tests showed male specificity in all species with the exception of some attractancy of Archips mortuanus males to Argyrotaenia velutinana female extracts. Negative male stimulation was recorded in the field and laboratory with strawberry leaf roller, Ancylis c. fragariae female extract. Histological studies on the female pheromoneproducing glands revealed significant development of glandular epithelium between the eighth and ninth abdominal segments with all species except strawberry leaf roller moths.
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