EFFECT OF FORMICA OBSCURIPES (HYMENOPTERA: FORMICIDAE) ON THE PREDATOR–PREY RELATIONSHIP BETWEEN HYPERASPIS CONGRESSIS (COLEOPTERA: COCCINELLIDAE) AND TOUMEYELLA NUMISMATICUM (HOMOPTERA: COCCIDAE)
- 1 August 1973
- journal article
- Published by Cambridge University Press (CUP) in The Canadian Entomologist
- Vol. 105 (8) , 1113-1118
- https://doi.org/10.4039/ent1051113-8
Abstract
The scale insect Toumeyella numismaticum Pettit and McDaniel occurred in small areas of heavy infestation in jack pine, Pinus banksiana Lamb., stands of southeastern Manitoba, where it was present in the same areas every year. The large populations of Formica obscuripes Forel present in the scale-infested areas lessened the effectiveness of the main predator of the scale, the coccinellid Hyperaspis congressis Watson, through interference with the Hyperaspis adults.Keywords
This publication has 4 references indexed in Scilit:
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- Biology and Ecology of Predaceous CoccinellidaeAnnual Review of Entomology, 1962
- Experimental studies on predation: Dispersion factors and predator-prey oscillationsHilgardia, 1958
- Some Aspects of the Biology and Dispersal of the Pine Tortoise Scale, Toumeyella numismaticum (Pettit and McDaniel) (Homoptera: Coccidae)The Canadian Entomologist, 1954