Leaf Blight of Litchi in Nurseries of Northern Region of Bangladesh and Its Management

International Journal of Biotech Trends and Technology (IJBTT)
© 2014 by IJBTT Journal
Volume - 4 Issue - 3                           
Year of Publication : 2014
Authors : Farzana Yasmin , Ismail Hossain


Farzana Yasmin , Ismail Hossain. "Leaf Blight of Litchi in Nurseries of Northern Region of Bangladesh and Its Management", International Journal of Biotech Trends and Technology (IJBTT), V4(3):1-10 Jul - Sep 2014, Published by Seventh Sense Research Group.


Bacterial leaf blight of litchi (Litchi chinensis Sonn.) considered as a serious disease in the nurseries especially in Northern region of Bangladesh. Survey was conducted on leaf blight of litchi in 7 cultivating litchi varieties in the country. Leaf blight was common in all 7 varieties viz. Bedana, Bombai, Haria Bombai, Madrajie, China-2, China-3 and Kathali lichu. The incidence and severity of leaf blight of litchi ranged from 13.5 to 41% and 11.5 to 33.5%, respectively. In vitro test revealed that all isolates of Pseudomonas syringae pv. syringae did not show resistance to Gentamicin. In the net house, six different treatments viz. Gentamicin (0.05%), Erythromycin (0.05%), Doxycycline (0.05%), Copper sulphate (0.05%), BAU-Biofungicide (2%) and Control were used in controlling bacterial leaf blight of litchi (Variety: Chaina-3). BAU-Biofungicide @ 2% was found superior for controlling leaf blight that increased 14.48% sapling height, 38.83% branch and reduced 72.96% disease incidence as well as 51.38% disease severity followed by Gentamycin @ 0.05% over control.


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Bacterial leaf blight, incidence, severity, Pseudomonas syringae pv. syringae, antibiotic sensitivity, Antibiotics, Copper sulphate, BAU-Biofungicide.