Bionomics of Diaphorina citri Kuwayama (Hemiptera: Psyllidae), on Citrus sinensis in Jammu Region of J & K State

[摘要]  The objective of this work is to study the biology of Asian Citrus psyllids, Diaphorina citri Kuwayama on Citrus sinensis in Jammu and Kashmir, India having varied agro-climatic conditions ranging from tropical, sub-tropical to temperate conditions. C. sinensis (Sweet Orange) is a cherished and economically important fruit in Jammu region of J & K State which is severely attacked by Asian citrus psyllids, a very serious pest of citrus in India. Both adults and nymphs suck sap of citrus plants, reduce their vigour and kill tender shoots. Citrus psylla has also been established as a vector of the ?greening disease?. Thus, an attempt was made to study the biology of D. citri in Jammu. The insects were reared in the laboratory at room temperature (10.84°C-32.87°C) and relative humidity of 26%-80% on C. sinensis plantlets. Eggs were laid in clusters on the half opened tender leaves and tender twigs. There are five nymphal stages with length varying from 0.26-2.96 mm. The incubation, nymphal and adult longevity were 2.28±0.18, 14.86+1.07 and 10±1.23 days respectively. Thus, the psyllid has a total life span of 20 to 36.5 days (27.14+2.34 days). The present study is an important step in future to record the no. of generations of Asian Citrus psyllids on C. sinensis and for the timely management of the pest

[学科分类] 昆虫学

[关键词] Diaphorina citri;biology;Citrus sinensis;Asian Citrus psyllid;morphometric measurements;life cycle