Tomato yellow leaf curl virus like disease and management

Ngo Bich Hao, Hanoi Agricultural Univ., Trau Qui Gia Lam, Hanoi; Nguyen Viet Hai, Past Entry Plant Quarantine No. 1 Chem Tu Liem, Hanoi; Ha Viet Cuong, Hanoi Agricultural Univ., Trau Qui Gia Lam, Hanoi; Natsuaki, K., Tokyo Univ. of Agriculture, Setagaya, Tokyo

Tomato yellow leaf curl virus like disease and management

2007

Ngo Bich Hao, Hanoi Agricultural Univ., Trau Qui Gia Lam, Hanoi (Vietnam) | Nguyen Viet Hai, Past Entry Plant Quarantine No. 1 Chem Tu Liem, Hanoi (Vietnam) | Ha Viet Cuong, Hanoi Agricultural Univ., Trau Qui Gia Lam, Hanoi (Vietnam) | Natsuaki, K., Tokyo Univ. of Agriculture, Setagaya, Tokyo (Japan)

Tomato yellow leaf curl disease is widely recognized as a serious constraint to tomato production in North Vietnam. The disease is caused by at least two viruses belonging to the genus Begomovirus with ss DNA, Tomato leaf curl Vietnam virus(ToLCVV,AF264063)and tomato yellow leaf curl Vietnam virus(TYLCVNV) and they are found in tomato leaf samples with yellow leaf curl symptom by PCR using specific primers for ToLCVV (ToLCVV-sp F2 and ToLCVV-sp-R2)and TYLCNV (TYLCVNV-sp-F1andTYLCVNV-sp-R1).Management of the disease by vector control using traps, a bio product 'Somec 25L (0.15%)' and a pesticide' Actara 25WG (0.01%) showed effective to decrease the population of the virus vector Bemissia Fabaci and the occurrence of the disease in the fields.

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