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A new matrix for toxic baits for control of the leaf-cutting ant Acromyrmex octospinosus (Reich) (Hymenoptera: Formicidae)

Published online by Cambridge University Press:  10 July 2009

A. R. Jutsum  and
J. M. Cherrett
A. R. Jutsum
Affiliation:
Department of Applied Zoology, University College of North Wales, Bangor, Gwynedd LL57 2UW, UK
J. M. Cherrett
Affiliation:
Department of Applied Zoology, University College of North Wales, Bangor, Gwynedd LL57 2UW, UK
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Abstract

A new easily-produced cheap compound for use as a bait matrix is described. The light-weight matrix of polyurethane is prepared from dense precursors into which suitable attractants and toxicants can be incorporated for the pest species in question. It has a high bait effectiveness/weight ratio, and so is very suitable for aerial application as large economically viable payloads can be achieved. When tested both in the laboratory and in the field on a small scale against the leaf-cutting ant Acromyrmex octospinosus (Reich), the bait was highly acceptable to the ants. Some formulations, especially those coated with mirex gave excellent control of ants in the field in Trinidad, killing all occupants of nests within four days of baiting. The bait exhibited good weathering properties, was resistant to fungus attack, and allowed the slow release of pheromones. It was much cheaper than the citrus pulp baits normally used in Trinidad.

Type
Original Articles
Information
Bulletin of Entomological Research , Volume 71 , Issue 4 , December 1981 , pp. 607 - 616
Copyright
Copyright © Cambridge University Press 1981

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