Effect of host’s Helicoverpa armigera (Hubner) larval age on the numerical response of the parasitoid Campoletis chlorideae Uchida

2017 
The numerical aspects of interaction between Campoletis chlorideae Uchida (Hymenoptera: Ichneumonidae) and different larval stage of the host Helicoverpa armigera (Hubner) (Lepidoptera: Noctuidae) at different parasitoid density were studied in entomological laboratory, department of Zoology, D. D. U. Gorakhpur University, Gorakhpur, U. P. in summer season of 1999-2000. The host larval age and density of the female parasitoid affect the rate of parasitization. The number of emerging offspring was higher with the second instars larvae larvae (y =23.9 + 16.279 log x; r = 0.951; P
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