A New Role for Temperature in Insect Dormancy: Cold Maintains Diapause in Temperate Zone Diptera

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Science  12 Nov 1982:
Vol. 218, Issue 4573, pp. 690-691
DOI: 10.1126/science.218.4573.690


In early autumn, high temperatures terminate diapause in the alfalfa blotch leafminer Agromyza frontella; low temperatures maintain diapause. These responses subserve a thermally malleable dormancy and allow flexibility in the annual number of generations. The view that favorable conditions cannot reverse the course of diapause are contradicted by the data on A. frontella. A better understanding to life history studies and phenological models in insect pest management.