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2009年46 No.1
The threshold temperature and effective accumulated temperature of Algedonia coclesalis
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Key Words：Algedonia coclesalis, temperature, developmental threshold temperature, effective accumulated temperature
Abstract：The developmental threshold temperature (DTT) and effective accumulated temperature (EAT) of Algedonia coclesalis Walker were determined under five constant temperatures in the range of 19～31℃. The results showed that egg, larva, pupa and adult can normally develop between 19～31℃. The optimal temperatures of the growth and development were between 28～31℃. The DTT of egg, each instar larvae from the 1st instar to the 7th instar, pupa, adult and the yearly generation were 663, 1251, 1118, 1093, 1005, 801, 680, 578, 620, 781 and 833℃, respectively, and their EAT were 12419, 6454, 7259, 8208, 9346, 13684, 15542, 20106, 21155, 11149 and 1 23550 degree -day respectively.