STUDIES ON SOME ASPECTS OF PREY-PREDATOR INTERACTION WITH REFERENCE TO CABBAGE APHID, BREVICORYNE-BRASSICAE (LINNAEUS) AND ITS PREDATORY INSECTS

Citation
Y. Debaraj et Tk. Singh, STUDIES ON SOME ASPECTS OF PREY-PREDATOR INTERACTION WITH REFERENCE TO CABBAGE APHID, BREVICORYNE-BRASSICAE (LINNAEUS) AND ITS PREDATORY INSECTS, Journal of advanced zoology, 19(1), 1998, pp. 50-54
Citations number
13
Categorie Soggetti
Zoology
Journal title
ISSN journal
02537214
Volume
19
Issue
1
Year of publication
1998
Pages
50 - 54
Database
ISI
SICI code
0253-7214(1998)19:1<50:SOSAOP>2.0.ZU;2-0
Abstract
Prey-predator interaction with reference to cabbage aphid, Brevicoryne brassicae and its predatory insects (Coccinellids and syrphids) was s tudied. Data on the aspects of the population trends of both the prey and the predator groups, feeding efficiency, development, sizes of the predator larvae were presented. Field data revaled that the populatio n trend of both the predator groups closely synchronised with that of the prey. Of the predators, syrphids showed significantly a high posit ive correlation with the aphid. While among the density-independent fa ctors, temperature and rainfall showed negative correlation indicating profound influence in the population regulation of the aphid. Compara tive feeding efficiency showed the syrphid, Metasyrphus (M.) Confrater is the most voracious than the others.