Prey-predator relationship between Lipaphis erysimi Kalt. (Hom., Aphididae) and Coccinella septempunctata L. (Col., Coccinellidae). II. Effect of host plants on the functional response of the predator

• Published in: Journal of applied entomology (1986) 1999-10, Vol.123 (10), p.591-601
• Main Authors: Kumar, A, Kumar, N, Siddiqui, A, Tripathi, C.P.M
• Format: Article
• Language: English
• Subjects: Aphididae; Biological and medical sciences; Biological control; Brassica; Brassica oleracea; Brassica rapa subsp. campestris; Coccinella septempunctata; Coccinellidae; Control; functional response; functional responses; Fundamental and applied biological sciences. Psychology; host plants; Lipaphis erysimi; Phytopathology. Animal pests. Plant and forest protection; plant effects; plant pests; population density; predation; predator-prey relationships; predators; predators of insect pests; prey density; Protozoa. Invertebrates; Raphanus sativus
• ISSN: 0931-2048; 1439-0418
• DOI: 10.1046/j.1439-0418.1999.00367.x

The present paper examines the effect of the host plants Brassica oleracea, Raphanus sativus and Brassica campestris on which Lipaphis erysimi was reared, on the functional response of the grub of Coccinella septempunctata. The functional response of the grub of C. septempunctata is of type II. The amount of prey consumption increases significantly with the increase of prey density and is maximum in B. oleracea‐reared aphids, followed by those reared on R. sativus and B. campestris. The percentage prey consumption declined throughout. This decrease was a maximum for aphids reared on B. campestris followed by R. sativus‐ and B. oleracea‐reared aphids. Analysis of variance also confirmed that the number and percentage prey consumption was significantly influenced between the three host plants and between 12 prey densities. Results show that C. septempunctata has a greater liking for aphids reared on B. oleracea rather than those reared on the other plants that were tested.