Platynota stultana

In some species, male variation in response to component ratio offset from the natural blend is somewhat modulated by ambient temperature (Linn et al, 1988). The response specificity of G. molesta and P. gossypiella to off-ratios of pheromone acetate components in a wind tunnel assay was narrower at 20 °C than at 26 °C. In the field, sexual activity in both species occurs at both of these temperatures, depending on time of year. Some field evidence of this phenomenon with P gossypiella appears in the distribution of catch in traps baited with a range of ratios measured at various times of the flight season. Flint et al. (1977) found an evidently narrower response breadth early in the season (when temperatures were cool) compared with late-season responses. In the omnivorous leafroller Platynota stultana, the optimum ratio of its two components for attraction seems to shift with temperature in the... 

Baker, J. L., Hill, A. S. and Roelofs, W. L. (1978). Seasonal variations in the pheromone trap catches of male omnivorous leafroller moths, Platynota stultana. Environmental Entomology 7 399 101. 

Temperature affects the production of and response to sex pheromone in the American cockroach, Periplaneta americana (178), and modifies the expression of female calling in Platynota stultana (179). In the female cockroach, sex pheromone production is directly related to acclimatization temperature and rapidly decreases one week after acclimatization to lower temperature (178). 

Webster, R.P., and R.T. Carde Relationship among Pheromone Titre, Calling and Age in the Omnivorous Leafroller Moth Platynota stultana). J. Insect Physiol. 28, 925-933 (1982). 

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See also in sourсe #XX -- [ ]

See also in sourсe #XX -- [ ]

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