Seasonal Trend in Population Density and Adult Body Size of the Diamondback Moth, Plutella xylostella (L.) (Lepidoptera: Yponomeutidae), in Central Thailand
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概要
- 論文の詳細を見る
Traps baited with a sex pheromone lure were placed in two fields located in Pathum Thani Province in central Thailand to estimate the seasonal trend in population density of the diamondback moth, Plutella xylostella, over a two year periods. Although a large number of moths were captured all year round regardless of different climatic conditions such as dry and rainy seasons, the population density was clearly different between the two fields, indicating that the number of emerging moths varied form place to place even in the same season. The population density declined sharply with the harvest of cruciferous vegetables, and recovered several weeks after the harvest. Forewing length of male moths captured in Thailand were constantly short through the year and about the same size as those of males found only in mid-summer in Japan.
- 1995-11-25
著者
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Shirai Yoichi
National Institute For Agro-environmental Sciences
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Kuwahara Masahiko
Japan International Research Center For Agricultural Sciences:national Institute Of Agro-environment
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Kuwahara Masahiko
Japan International Research Center For Agricultural Sciences:national Institute Of Agro-environment
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Keinmeesuke Piyaratt
Department Of Agriculture Ministry Of Agriculture And Cooperatives
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