Protection from beetle-predation in cochineal insects (Dactylopiidae : Homoptera)

Title: Protection from beetle-predation in cochineal insects (Dactylopiidae : Homoptera)
Creator: Morrison, John Frederick
ThesisAdvisor: Moran, V.C.
ThesisAdvisor: Walter, G.H.
Subject: Cochineal insect
Subject: Homoptera
Date: 1984
Type: Thesis
Type: Masters
Type: MSc
Identifier: vital:5819
Identifier: http://hdl.handle.net/10962/d1007282
Identifier: Cochineal insect
Identifier: Homoptera
Description: From introduction: In South Africa the native ladybird beetle Exochomus flaviventris Mader feeds on the introduced cochineal insect Dactylopius opuntiae (Cockerell) (Pettey, 1943, 1946, 1948; Geyer, 1947 a, b; Pettey and Marais, 1950). It has also been reported to feed on Dactylopius austrinus Lindley (Geyer, 1947 a; Pettey, 1948), but this appears to occur rarely in the field (H.G. Zimmermann and H.G. Robertson pers. camm. ; Appendix 1 ). This thesis attempts to determine why E. flaviventris feeds on D. opuntiae in the field but not on D. austrinus.
Format: 88 p., pdf
Publisher: Rhodes University, Faculty of Science, Zoology and Entomology
Language: English
Rights: Morrison, John Frederick

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