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Spatial Distribution and Flight Patterns of Two Grain Storage Insect Pests, Rhyzopertha dominica (Bostrichidae) and Tribolium castaneum (Tenebrionidae): Implications for Pest Management

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Holloway, J. C., Daglish, G. J. and Mayer, D. G. (2020) Spatial Distribution and Flight Patterns of Two Grain Storage Insect Pests, Rhyzopertha dominica (Bostrichidae) and Tribolium castaneum (Tenebrionidae): Implications for Pest Management. Insects, 11 (10). ISSN 2075-4450 (Print)2075-4450

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Article Link(s): https://doi.org/10.3390/insects11100715

Abstract

The lesser grain borer, Rhyzopertha dominica, and the rust red flour beetle, Tribolium castaneum, are two major beetle pests commonly found infesting stored products worldwide. Both species can cause severe economic damage and their management is complicated by their potential to develop resistance to several of the limited chemical options available. However, pest management strategies can be improved by understanding the ecology of the pest insect. To determine the spatiotemporal activity of R. dominica and T. castaneum, we conducted a trapping study over two years in a temperate region of south-eastern Australia, with traps located near grain storages and fields. We captured higher numbers of R. dominica than T. castaneum, and both species were more prevalent in traps located close to grain storages. Similar and consistent seasonal patterns were displayed by both species with activity ceasing during the winter (June-August) months. We found linear correlations between maximum daily temperatures and trap catches, and minimum threshold temperatures for flight activity were 14.5 °C and 15.6 °C for R. dominica and T. castaneum, respectively. The results are discussed in relation to the ecology of these pests along with their implications for pest management.

Item Type:Article
Business groups:Crop and Food Science, Animal Science
Additional Information:Open access PDF attached.
Keywords:ecology flight activity pest management spatiotemporal patterns stored grain
Subjects:Science > Entomology
Science > Statistics
Plant culture > Field crops > Grain. Cereals
Plant pests and diseases > Pest control and treatment of diseases. Plant protection
Deposited On:08 Nov 2020 22:33
Last Modified:08 Nov 2020 22:36

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