Deeksha Joshi ¹, K. S. Hooda ¹, J. C. Bhatt ¹

Affiliations
1 Vivekananda Parvatiya Krishi Anusandhan Sansthan (ICAR), Almora 263 601, Uttarakhand, IN

Abstract

Sixty cultures of Trichoderma were isolated from forty locations in Uttarakhand hills and screened for their ability to control ischolar_main rot ol" French beam caused by Rhizoctonia solani (Kuhn) and Fusarium solani (Mart.) Sacc. Under laboratory screening by dual culture methodology, maximum inhibition of radial growth of R. solani (61.7%) was observed with isolate Tr-21, while isolate Tr-34 showed maximum inhibition of mycelial growth of F. solani (46.4%), Based on the results of in vitro screening, 7 isolates (Tr-5, 14, 17, 21, 28, 34&45) were selected for glasshouse studies. Talc formulation of the 7 isolates was prepared and isolates were applied as both seed and soil treatment in glasshouse studies. Although all the 7 isolates significantly reduced the incidence of ischolar_main rot as compared to check, two isolates of T. harzianum viz., Tr-34 and Tr-14 were found most effective in glasshouse evaluation showing only 20.8 and 23.4 per cent ischolar_main- rot, respectively, These isolates were statistically at par with seed treatment with carbendazim, which showed 21,1 percent ischolar_main-rot. Treatment with isolate Tr-34 also resulted in significantly higher germination per cent and better plant vigour as compared to untreated control.

Keywords

Biological Control, French Bean, Root-Rot, Trichoderma.

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S. N. Sushil ¹, M. Mohan ¹, K. S. Hooda ¹, J. C. Bhatt ¹, H. S. Gupta ¹

Affiliations
1 Vivekananda Institute of Hill Agriculture (ICAR) Almora 263 601, Uttaranchal, IN

Abstract

Safer management tools against major insect pests of tomato and garden pea have been evaluated for the first time in Kumaon hills of northwest Himlilayas. In tomato, four releases of Trichogramma chilonis Ishii @ 50,000 insects/ha/release at an interval of 10 days from flowering initiation stage against fruit borer, Helicoverpa armigera (Hubner) and in garden pea, BSKE (Batain (Chinaberry, Melia azedarach) Seed Kernel Extract) (10 %) against pod borers, H. armigera and Lampides boeticus were found most promising. Planting a row of marigold after 10 rows of tomato, application of BSKE. azadirachtin (0.03%), HaNPV @250 LE/ha, Bacillus thuringiensis @ 1 kg/ha endosulfan (0.07%) have also significantly reduced the major insect pests of tomato and garden pea over control.

Keywords

Garden Pea, Hill Agriculture, Helicoverpa armigera, Liriomyza trifolia, Lampides boeticus, Phytomyza horticola, Tomato, Trichogramma chilonis.

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