Monitoring Field Populations with Pheromone Trap and Seasonal Trend of Adult Body Size of the Diamondback Moth, Plutella xylostella (L.) (Lepidoptera:Yponomeutidae), in Central Thailand

JIRCAS Journal
ISSN 13407686
書誌レコードID(総合目録DB) AA11030483

Three traps baited with a sex pheromone lure were placed in a field with cruciferous vegetables located in Pathum Thani, in the suburbs of Bangkok City in Central Thailand, to estimate the seasonal trend in population density of the diamondback moth, Plutella xylostella. A large number of moths was captured all the year round regardless of the distinctive differences in climatic conditions. Sharp decline in population coincided with harvest of the vegetables in the furrows and lag to recover the population density was detected for several weeks after harvest, indicating a low flight activity of the moths in the near proximity and/ or narrow range of action of the pheromone lure. The insects maintained a high population level all the year round, and there were no clear differences in the number of the moths captured by traps between seasons. The body size of the male moths found in Thailand was small and constant throughout the year, as the temperature is always hot with negligible seasonal changes. The size coincided with that of the moths found only in mid-summer in Japan.

作成者 Masahiko KUWAHARA Piyaratt KEINMEESUKE Yoichi SHIRAI
著者キーワード population fluctuation immigration forewing length tropics biological characteristics
公開者 Japan International Research Center for Agricultural Sciences
国立情報学研究所メタデータ主題語彙集(資源タイプ) Journal Article
開始ページ 17
終了ページ 22
権利 Japan International Research Center for Agricultural Sciences
言語 eng