Observations of temperature effects on the development of Epicauta aptera
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Key Words：wordsEpicauta aptera， developmental periods， developmental threshold temperature(DTT)， effective accumulative temperature
Abstract：The developmental periods and developmental threshold temperatures (DTT) of Epicauta aptera Kaszab were studied under natural temperature conditions. The results show that the developmental periods of most developmental stages of E. aptera gradually shortened, and developmental rates gradually accelerated, with increasing temperature. The DTT of the lst-4th instars was the lowest and that of the egg was the highest.