Competitive interactions between the larvae of Heliothis armigera (Hübner) and Heliothis punctigera Wallengren (Lepidoptera: Noctuidae)
Experiments were conducted in the laboratory and glasshouse to investigate the role of competitive interactions between the larvae of Heliothis armigera and H. punctigera (Lepidoptera:Noctuidae) in regulating the relative abundance of the two species on cotton plants. Under uniform laboratory conditions H. armigera and H. punctigera larvae differed in their cannibalistic behaviour; the frequency of cannibalism in H. armigera was primarily encounter-dependent while in H. punctigera it...[Show more]
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