BARI (Bangladesh); Virginia Tech, Ohio State (US)
Mozammal Hoque, Selim Reza Mallik, M. Nazimuddin, S. N. Alam, M. Khorsheduzzaman (BARI),Mahbubur Rahman (IPM CRSP/Virginia Tech), E. Rajotte (Penn State), S. Miller (Ohio State), and G. Luther (Virginia Tech)
Vectors usually attack the young okra plants at the vegetative stage for virus transmission. Frequent use of highly poisonous pesticides by the farmers, without recognizing the vector(s), its incidence patterns and the virus infection time, create poisonous residues in the food chain. Understanding the growth stage critical for virus transmission can help greatly to undertake appropriate control measures for the vector or virus transmission. This project sought to develop a suitable control measure with judicious use of softer insecticides for growing relatively virus-free okra crops.
To develop a suitable control measure with judicious use of softer insecticides for growing relatively virus-free okra crops.
The study using net barrier around okra plots again confirmed that okra crops with much better plant growth, lower vector and virus infestation, and higher yields can be grown if the plants are protected effectively from vector infestation. A suitable and economically effective measure is however needed to protect the crop from infestations of whitefly, aphids and jassids, which are the possible vectors of okra viruses.