Hostname: page-component-cd9895bd7-mkpzs Total loading time: 0 Render date: 2024-12-25T17:56:55.582Z Has data issue: false hasContentIssue false

An Ecological Study of Coccinellidae (Col.) associated with Aphis fabae Scop. on Vicia faba1

Published online by Cambridge University Press:  10 July 2009

C. J. Banks
Affiliation:
Dept. of Entomology, Rothamsted Experimental Station, Harpenden.

Extract

Changes in numbers of adult Coccinellids on nettles infested with Microlophium evansi (Theo.) and on three experimental bean plots infested with Aphis fabae Scop. are described for the spring and summer of 1952 at Rothamsted. Of the three common species, Adalia bipunctata (L.), Coccinella septempunctata L. and Propylea quatuordecimpunctata (L.), the first was always the most abundant.

The overwintered Coccinellids produced two broods: one on nettles in the spring and one on beans in early summer.

On bean plots, changes in numbers of the adult insects occurred in three phases: (1) overwintered ladybirds, dispersing from nettles and other places, accumulated on the beans in the early stages of the infestations by Aphis fabae; (2) ladybirds, which had developed from eggs laid by the overwintered insects on nettles, emigrated from nettles and accumulated on the beans when A. fabae populations were at their height; (3) ladybirds, developed from eggs laid on the beans also by the overwintered insects, reached the adult stage when the bean aphid infestations had finished. The rise and fall of the A. fabae populations are discussed.

One of the bean plots had always a high population of Coceinellids, which was attributed to its situation between two of the nettle sites. The other two bean plots were remote from nettles and one was sheltered by trees and buildings; their coccinellid populations were much lower.

Type
Original Articles
Copyright
Copyright © Cambridge University Press 1955

Access options

Get access to the full version of this content by using one of the access options below. (Log in options will check for institutional or personal access. Content may require purchase if you do not have access.)

References

Allee, W. C.., Emerson, A. E.., Park, O.., Park, T. & Schmidt, K. P. (1949). Principles of animal ecology. — 837 pp. Philadelphia, Saunders.Google Scholar
Banks, C. J. (1954 a). Random and non–random distributions of Coccinellidae. — J. Soc. Brit. Ent. 4, pp. 211215.Google Scholar
Banks, C. J. (1954 b). The searching behaviour of Coccinellid larvae. — Brit. J. Anim. Behav. 2, pp. 3738.Google Scholar
Banks, C. J. (1954 c). A method for estimating populations and counting large numbers of Aphis fabae Scop.Bull. ent. Ees. 45, pp. 751756.CrossRefGoogle Scholar
Clausen, C. P. (1940). Entomophagous insects.—688 pp. New York, Mcgraw-Hill.Google Scholar
Fenjves, P. (1945). Beiträge zur Kenntnis der Blattlaus Myzus (Myzodes) persicae Sulz., Überträgerin der Blattrollkrankheit der Kartoffel.—Mitt, schweiz. ent. Ges. 19, pp. 489611.Google Scholar
Heinze, K. & Profft, J. (1940). Ueber die an der Kartoffel lebenden Blatt–lausarten und ihren Massenwechsel in Zusammenhang mit dem Auftreten von Kartoffelvirosen.—Mitt. biol. Reichsanst. no. 60, 164 pp.Google Scholar
Johnson, C. G. (1950). A suction trap for small airborne insects which automatically segregates the catch into successive hourly samples.—Ann. appl. Biol. 37, pp. 8091.Google Scholar
Leopold, A. (1933). Game management.—481 pp. New York, C. Scribner's Sons.Google Scholar
Nicholson, A. J. (1933). The balance of animal populations.—J. Anim. Ecol. 2, pp. 132178.Google Scholar
Schilder, F. A. & Schilder, M. (1928). Die Nahrung der Coccinelliden und ihre Beziehung zur Verwandtschaft der Arten.—Arb. biol. Reichsanst. 16, pp. 213282.Google Scholar
Smee, C. (1922). British ladybird beetles. Their control of Aphids.—Fruitgrower 53, pp. 675676,717718,759760.Google Scholar
Smith, K. M. (1931). A textbook of agricultural entomology.—285 pp. Cambridge, Univ Press.Google Scholar
Solomon, M. E. (1949). The natural control of animal populations.—J. Anim. Ecol. 18, pp. 135.Google Scholar
Thompson, W. R. (1929). On the relative value of parasites and predators in the biological control of insect pests.—Bull. ent. Ees. 19, pp. 343350.Google Scholar
Thompson, W. R. (1939). Biological control and the theories of the interactions of populations.—Parasitology, 31, pp. 299388.CrossRefGoogle Scholar
Ullyett, G. C. (1953). Biomathematics and insect population problems. A critical review.—Mem. ent. Soc. S. Afr. no. 2, 89 pp.Google Scholar
Varley, G. C. (1953). Ecological aspects of population regulation.—Trans. IXth int. Congr. Ent. 2, pp. 210214.Google Scholar