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white root rot disease of rubber

Incidence, host range, and control of white root rot disease of rubber (Hevea brasiliensis) in the Philippines

Naomi G Tangonan & Jasmin A Pecho

University Professor/Plant Pathologist and Research Assistant, respectively, Philippine Rubber Research Center, University of Southern Mindanao, Kabacan, Cotabato, Philippines Tel/Fax (63-64) 248-2610
Email: ngtangonan@gmail.com

This project was funded by the Department of Agriculture-Bureau of Agricultural Research (DA-BAR), Quezon City, Philippines through its Plantation Crops and Crop Protection Networks.


Abstract

Major rubber (Hevea brasiliensis Muell. Arg.) growing provinces in Mindanao, Philippines (Agusan Sur, Basilan, Bukidnon, Cotabato, Davao, Sarangani, and Zamboanga del Norte, and Sibugay) were surveyed for incidence and severity of white root rot (WRR) disease caused by Rigidoporus lignosus (microporus).

Synthetic fungicides applied as curative against white root rot disease significantly reduced disease severity of rubber trees for six months.

Three basidomycetous fungi namely, bracket fungus 1 (BF1), 2 wild mushrooms (WM1 & WM2), and T. harzianum were found as potential biological control agents against R. lignosus causing white root rot disease of rubber. Twenty (20) hosts of Rigidoporus lignosus causing white root rot were noted.

Key words: rubber diseases, white root rot, basidiomycetous fungi, botanical extracts, biological control



Posted by pssn on 03/28/2007 05:09 PM [2142 views]





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