During survey in one of the village of Nepal which was once very famous for the production of organic coffee and now the people are discouraged for coffee cultivation, we found very severe infestation of coffee white stem borer. How can we control CWSB using organic means?
Hello Milan:
For control of the coffee white stem borer Xylotrechus quadripes you need to consider an integrated pest management approach. Ethological control: using pheromone traps installed on coffee plantations for monitoring and trapping the beetles during the peak flight periods (April-May and October-December) to reduce the infestation, i.e. cross-vane pheromone trap, to catch females.
Cultural control . Borer infested plants should be traced, removed and destroyed during March and September, i.e. before the beetles emerge.
Two tier system of shade is essential. The upper level of mixed species of permanent shade trees and a lower level of temporary shade trees like dadap, (Erythrina species) is required. The shade trees should be regulated in such a way that the coffee plant is not exposed during the flight period of the beetles.
Spraying 10% lime (spray lime at 20kg in 200 litres of water along with 200ml Fevicol DDL) on main stem and thick primaries is found to afford good protection against the borer attack.
For additional information please check these references
http://www.plantwise.org/KnowledgeBank/FactsheetAdmin/Images/Uploads/PDFs/20147801455.pdf
https://www.ncbi.nlm.nih.gov/pubmed/16525878
https://www.cabdirect.org/cabdirect/abstract/20103036705
http://www.indiacoffee.org/Planter/WSM-Eng.pdf
Regards,
Luis Miguel
Technology (Sealer cum healer) developed for Mango Trunk borer management developed in India can be tried for coffee but needs validation.
http://www.iihr.ernet.in/content/technology-sealer-cum-healer-mango-trunk-borer-management
Thanks Mr Navaraj sir but the method you suggested was previously adopted by farmers and couldn't be effective.
I agree with Mr. Navaraj. Cotton plugging soaked in kerosene is expected to work but nowadays this is not effective comparatively. Nowadays, pheromone traps are found to work effectively.
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