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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Ankita Gupta ¹, M. Mohan ², M. Sampathkumar ³, A. N. Shylesha ³, S. R. Venkatachalam ⁴, N. Bakthavatsalam ³

Affiliations
1 ICAR–National Bureau of Agricultural Insect Resources, Germplasm collection and characterization, IN
2 ICAR-National Bureau of Agricultural Insect Resources, 2491, H. A. Farm Post, Bellary Road, Hebbal, Bengaluru - 560 024, Karnataka, IN
3 ICAR-National Bureau of Agricultural Insect Resources, 2491, H. A. Farm Post, Bellary Road, Hebbal, Bengaluru - 560024, Karnataka, IN
4 TCRS, TNAU, Yethapur - 636 117, Tamil Nadu

Abstract

High percentage of Homalotylus turkmenicus Myartseva (Hymenoptera: Encyrtidae) parasitizing Hyperaspis maindroni Sicard (Coleoptera: Coccinellidae) predating on the colonies of the Cassava Mealybug (CMB) Phenacoccus manihoti Matile-Ferrero (Hemiptera: Pseudococcidae) is observed in southern India. In the present study, cautionary note on the presence of H. turkmenicus in the food web of insects associated with the CMB and brief diagnosis of the parasitoid is presented for quick identification. The parasitism of Hy. maindroni grubs by H. turkmenicus ranged from 65.67 to 80.95 per cent. However, no primary parasitoid of the cassava mealybug was observed so far.

Keywords

Cassava Mealybug, Hyperparasitoid, Predation.

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