INSECT TRANSMISSION OF BUD NECROSIS VIRUS INFECTING TOMATO (Lycopersicon esculentum Mill.)

CHITRAPU RUTH¹*
¹Department of Plant Pathology, College of Horticulture, Anantharajupeta, 516105, Dr Y.S.R. Horticultural University, Venkataramannagudem, 534101, Andhra Pradesh
* Corresponding Author : ruthbenerjee1@gmail.com

Received : 16-04-2018     Accepted : 24-04-2018     Published : 30-04-2018
Volume : 10     Issue : 8       Pages : 5845 - 5848
Int J Agr Sci 10.8 (2018):5845-5848

Keywords : Thrips palmi, Bud necrosis virus, insect transmission
Conflict of Interest : None declared
Acknowledgements/Funding : Author thankful to College of Horticulture, Anantharajupeta, 516105, Dr Y.S.R. Horticultural University, Venkataramannagudem, 534101, Andhra Pradesh
Author Contribution : Sole Author

Insect transmission tests revealed that Thrips palmi is considered as the vector of the virus causing bud necrosis disease in tomato and cowpea. The larvae of Thrips palmi could acquire the virus with a minimum access period of 15 min. and the adults only transmit the virus with 1h inoculation access period (IAP). However, optimum virus transmission obtained with 48h/of AAP in the larval stage and 48h/of IAP in the adult stage, but beyond 48h of AAP and IAP resulted in decreased virus transmission. A single adult Thrips palmi could able to transmit the virus with a transmission rate of 24 to 32 percent and maximum transmission rate (100%) was achieved with 10 adults per seedling.

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