IN VITRO CONTROL OF COLLETOTRICHUM DEMATIUM CAUSING ANTHRACNOSE OF SOYBEAN BY FUNGICIDES, PLANT EXTRACTS AND TRICHODERMA HARZIANUM

摘要: Shovan L.R., Bhuiyan M. K. A., Begum J. A. and Pervez Z. 2008. In vitro Control of Colletotrichum dematium Causing Anthracnose Soybean by Fungicides, Plant Extracts Trichoderma harzianum. Int. Sustain. Crop Prod. 3(3):10-17 A study was conducted in the Microbiology Laboratory Pathology Department, Bangabandhu Sheikh Mujibur Rahman Agricultural University, Gazipur, during 2005 to 2006 control causing anthracnose soybean with fungicides, plant extracts Five fungicides namely Tilt-250 EC, Vitavax-200, Rovral 50 WP, Dithane M-45 Cupravit were evaluated at 100, 200 400 ppm for their efficacy against radial colony growth mycelial dry weight C. dematium. The complete inhibition obtained EC all selected concentrations. highest concentration Vitavax-200 inhibits 77.41% 83.45% weight, respectively significantly superior WP concentration. found be inferior test pathogen. garlic, ginger, onion neem three different concentrations (5%, 10% 20%) Among four extracts, garlic extract 20% appeared best inhibiting pathogen followed onion, ginger each from other. total 20 T. harzianum isolates collected rhizosphere rhizoplane crops screened following dual plate culture technique. showed variable antagonism ranging 50.93 89.44% reduction promising antagonists, isolate T3 harzinum 89.44 %