septempunctata was significantly higher on L. Similarly, planting of resistant varieties is a promising option in order to mitigate linseed bud fly attacks. The predation by female of all aphid species was more as compared to male. Coccinellids, Coccinella septempunctata and Macaria sexmaculata, are predators of midge and predation of up to 1015 has been reported in Kanpur (Malik, 2000 Malik and Singh, 1997). axyridis exhibited a type II functional response for predation toward adult soybean aphids at 26 ± 1☌.
Third instars, adult females, and adult males of both C. The last larval stage (grub 4), irrespective of aphid species, devoured more aphids than the other grub stages. and Harmonia axyridis Pallas are key natural enemies of soybean aphid, Aphis glycines Matsumura, in North America. With regard to predation, the grubs consumed maximum H. Between the sexes, the female required longer period for its development than male with respect to all aphid species. Nonetheless, the adult longevity was higher on L. The grubs, however, required significantly longer developmental period on H. septempunctata was found significantly longer on L. Because of its potential as a biological control agent of crop insect pests, several intentional introductions have occurred in the USA. The performance of Coccinella septempunctata was investigated on five-aphid species viz., Lipaphis erysimi, Aphis craccivora, Hyadaphis coriandri, Rhopalosiphum nymphae and Macrosiphum rosae under controlled conditions (25☑☌, 70±5% RH and 12 h L: 12 h D). Coccinella septempunctata, the seven-spot ladybird, is a widespread species originally native from Europe, Asia and Northern Africa. (Coleoptera: Coccinellidae) on Different Aphid Species Development and Predatory Performance of Coccinella septempunctata L.
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