Susceptibility of different varieties of mango to leaf cutting weevil, Deporaus marginatus P. and its control
2003
Uddin, M.A. | Islam, M.S. | Rahman, M.A. | Begum, M.M. (Bangladesh Agricultural Research Inst., Rajshahi (Bangladesh). Fruit Research Station) | Hasanuzzaman, A.T.M.
The experiments were conducted on 12 mango graft varieties/cultivars viz. BARI mango-1, BARI mango-2, BARI mango-3 (Amrapali), Fazli, Gopalbhog, Khirsapat, Kazla sinduri, Kazla-01 (Subarna), Langra, Mallika, Rad and seedling (stock plant) on the incidence of mango leaf cutting weevil (Deporaus marginatus P.), its extent of damage to mango leaves and the effectiveness of non- chemical and chemical (insecticide) for control. The highest infestation of 52.55 % leaves recorded in BARI mango-3 (Amrapali) followed by Rad, Mallika, BARI mango-1 and BARI mango-2 and the lowest infestation of 13.78 and 18.55 % found in Langra and Gopalbhog followed by Kazla-01 and Khirsapath. The other three varieties sustained 27.49-30.64 % leaf damage. To control the mango leaf cutting weevil bagging with mosquito net and bagging with polythin bag had the best performance with 100 % reduction of leaf infestation followed by spraying of Ripcord. Spraying of Decis caused 82.23 % reduction of leaf damage followed by Sevin, Azodrin and Diazinon with the least control efficiency of Sumithion.
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