Transmission of pepper yellow leaf curl virus by the insect vector Bemisia tabaci Genn.(Hemiptera: Aleyrodidae)
2007
Sulandari,S., Gadjah Mada University, Bulaksumur, Yogyakarta 55281(Indonesia)Dept. of plant Pests and Diseases | Hidayat, S.H. | Suseno, R., Bogor Agricultural Univ., Jalah Kamper-Darmaga Campus, Bogor 16680 (Indonesia). Dept. of Plant Protection | Harjosudarmo, J., Indonesia Center for Agricultural Biotechnology and Genetic Resources Research and Development, Jalan Tentara Pelajar 3A, Bogor 16111 (Indonesia) | Sosromarsono, S., Bogor Agricultural Univ., Jalan Kamper-Darmaga Campus,Bogor 16680 (Indonesia)
The yellow leaf curl disease caused by a geminivirus is a serious problem to the pepper plantations in Indonesia. The epidemic of the disease which started in 2000 is assumed to have a relationship with the vector activities, that is tobacco whitefly(Bemisia tabaca Genn.). Basic studies was carried out to elucidate the characteristics of pepper yellow leaf curl virus(PYLCV) transmission by its vector, B. tabaci. It was found that a single whitefly was able to transmit the virus to chilli pepper. The insect vector could transmit the virus in a persistent manner, but it is not transovirally transmitted. Acquisition and inoculation feeding period of the whitefly to transmit the virus was identified to be optimum in the range of 3 to 6 hours. The virus needs at least 9 hours in the vector to complete latent period, white the retention period is until the insect dies. The transmission efficiency will increase with longer acquisition and inoculation feeding period of the insect and higher number of insects per plant. The female tobacco whitefly is more effective in transmitting the virus compared to the males.
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