K. S. Kapoor ¹, P. R. Gupta ¹

Affiliations
1 Central Integrated Pest Management Centre Chambaghat, Solan, 173 213, Himachal Pradesh, IN

Abstract

Age specific fecundity and intrinsic rate of increase of Aphytis sp.? hispanicus, an important ecto-parasitoid of the San Jose scale, Quadraspidiotus perniciosus (Comstock) was studied in the mid - hill region of Himachal Pradesh which revealed that the net reproductive rate (R₀) of the species was 17.47 female eggs/female. The true intrinsic rate of increase (rm) was 0.116. The population multiplied 1.123 times per day during the generation time of 24.66 days. The doubling time of the species was 5.98 days.

Keywords

Age Specific Fecundity, Aphytis sp., Ecto-Parasitoid, Intrinsic Rate of Increase, San Jose Scale.

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A. D. Pawar ¹, U. S. Rawat ¹, K. S. Kapoor ¹

Affiliations
1 Central Integrated Pest Management Centre, Solan, 173211, IN

Abstract

Field surveys undertaken in Himachal Pradesh since 1991 revealed that tomato crop suffered upto 56.7 percent fruit damage by Helicoverpa armigera Hubner (Anonymous, 1991.) Mathur (1970) reported four parasites of H.armigera from the State. In the present studies which were carried out at Solan (Himachal Pradesh, Campoletis chlorideae Uchida an ichneumonid and it hyperparasite Brachymeria secundaria (Ruschka) a chalcid have been recorded.

Keywords

Helicoverpa armigera Campoletis chlorideae, Brachymeria secundaria.

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