Factors affecting the behaviour of beetle pests in stored grain, with particular reference to the development of lures

Cox, P.D.; Collins, Larissa

doi:10.1016/s0022-474x(01)00010-8

Cited by 56 publications

(34 citation statements)

References 134 publications

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“…The potential of using a multi-attractive source, which is capable of multi-species detection in storage facilities, has appealed many researchers over recent years (Dowdy & Mullen, 1998;Cox & Collins, 2002;Athanassiou et al, 2003;Collins et al, 2004). The development of such an attractant is an obvious answer to the problem of cross interactions among species in trapping performance.…”

Section: Discussionmentioning

confidence: 99%

Responses of Sitophilus oryzae (Coleoptera: Curculionidae) and Tribolium confusum (Coleoptera: Tenebrionidae) to traps baited with pheromones and food volatiles

Athanassiou¹,

Kavallieratos²,

Trematerra³

2006

Eur. J. Entomol.

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Abstract. The behavioural responses of two species of stored-product beetles, Sitophilus oryzae (L.) and Tribolium confusum Jacquelin du Val, to certain stimuli were studied in laboratory choice tests. The results of these experiments indicated that, with one species present, S. oryzae and T. confusum adults were equally attracted to traps baited with the aggregation pheromone of that species and to traps baited with both pheromones. In contrast, when both species were present, neither S. oryzae nor T. confusum showed specific behavioural trend towards a stimulus. Traps baited with 1 g of a mixture of plant extracts were significantly more attractive for both species than unbaited traps, but this response was highly influenced by the number of individuals of each species released. Traps baited with filter papers that were previously contaminated by live adults of both species were particularly attractive for S. oryzae, but not for T. confusum. Traps that contained 10 seeds damaged by S. oryzae were significantly more attractive than traps containing an oil lure or control traps for S. oryzae, but not for T. confusum. The addition of oil to the seeds did not affect the attractiveness of the trap for S. oryzae. Traps that contained 20 live S. oryzae adults were significantly more attractive than traps containing 20 dead S. oryzae adults or control traps. No significant differences were noted between traps containing 20 dead S. oryzae adults and control traps. The presence of S. oryzae adults in traps did not affect the response of T. confusum.

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Section: Discussionmentioning

confidence: 99%

Responses of Sitophilus oryzae (Coleoptera: Curculionidae) and Tribolium confusum (Coleoptera: Tenebrionidae) to traps baited with pheromones and food volatiles

Athanassiou¹,

Kavallieratos²,

Trematerra³

2006

Eur. J. Entomol.

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“…Gas concentration, and grain temperature and moisture content might change. These physical, chemical, and biological changes are used to control and monitor the quality of the stored grain [12,34,53,57,60]. Even though some volatiles produced by insects [67], fungi, and grain [12] are detected under controlled laboratory condition, it is not very clear as to which and how many chemicals are produced inside stored grain bins.…”

Section: Interaction Among Factors In Stored-grain Ecosystemmentioning

confidence: 99%

The Ecosystem Approach to Grain Storage

Jian

Jayas

2012

Agric Res

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The progress in understanding the stored grain ecosystem is reviewed. Succession of insects, insect movement and distribution, interaction among insects and microflora, and the development of hot spots inside stored grain ecosystems are evaluated. Based on these case studies, we examined the understanding of the stored grain ecosystem from the view of ecosystem approach. To understand the storage grain ecosystem, integration of the parts (the collected data under small scale laboratory conditions) into a usable whole (the entire grain storage ecosystem) is required. To verify the synthesised whole, both small and full scale tests are required. To manage the stored grain ecosystem, understanding the ecosystem and application of ecosystem approach are the keys.

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“…Many standard bioassays test whether a material is an attractant or repellent by measuring the insect's response (positive or negative 'chemotaxis') to volatile chemicals emanating from the material and carried by a moving air current (Campbell, 2012). The movement of insects in their natural environments, however, is also controlled by responses to a wide range of stimuli; e.g., 'phototaxis' causes movement toward or away from light (Reza & Parween, 2006), 'geotaxis' causes movement up or down in response to gravity (Cox & Collins, 2002;Jiang et al, 2006) and 'thigmotaxis' causes movement along pathways that maximise the area of their bodies in contact with surfaces (Kennedy, 1986). All of these stimuli-driven responses help beetles locate a food source and avoid contact with toxic chemicals, while keeping them in a protected environment.…”

Section: Introductionmentioning

confidence: 99%

New ‘stimuli-enriched’ laboratory bioassay used to identify improved botanical repellent treatment, Lem-ocimum, to control the stored-grain pest Tribolium castaneum

Utono

Gibson

2015

Journal of Stored Products Research

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A laboratory study of Tribolium castaneum, a major pest of stored grain, was conducted to develop a more efficient and effective 'choice' bioassay for identification of new repellent botanical treatments. Standard bioassays to test the repellency of candidate plants include pitfall traps and open arena choice tests, environments lacking in some of the most important natural stimuli that guide the movement of food-searching beetles, e.g., 1) materials they can burrow through, which stimulate 'positive thigmotaxis', 2) a range of light and dark areas, which stimulate 'negative phototaxis' and 3) three-dimensional habitats, which stimulate 'positive geotaxis.' The lack of these stimuli can lead to two common problems; 'low efficiency' (high proportion of beetles remain in the area that surrounds treatments without making a 'choice'), and 'low efficacy' (high variability in proportions found in control and 2 treated samples). The new 'stimuli-enriched' bioassay, which included all three of the above stimuli, was significantly more efficient (Analysis of deviance; χ 2 =82.4, df=3, P<0.0001) and effective (χ 2 =30.6, df=3, P=0.0027) than three standard bioassays. The stimuli-enriched bioassay was used to compare the repellency of four candidate plants; Ocimum basilicum (Sweet Basil) and Cymbopogon nardus (Lemongrass) were significantly more repellent than Vernonia amygdalina or Nauclea diderrichii (Tukey Contrasts; P<0.01). A novel method of applying repellent material (a paste of repellent plant is applied between the layers of double bagged grain) was tested on the most promising repellent plants materials; a combination of C. nardus and O. basilicum ('Lem-ocimum') at 0.5% w/w of each was significantly more effective than O. basilicum on its own (Tukey Contrasts; P<0.05). These results show that the stimuli-enriched bioassay provides more consistent and accurate assessments than the standard bioassays of the repellency of candidate botanicals, and that Lem-ocimum treated double-bags are a promising new method of protecting sorghum from T. castaneum.

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Factors affecting the behaviour of beetle pests in stored grain, with particular reference to the development of lures

Cited by 56 publications

References 134 publications

Responses of Sitophilus oryzae (Coleoptera: Curculionidae) and Tribolium confusum (Coleoptera: Tenebrionidae) to traps baited with pheromones and food volatiles

Responses of Sitophilus oryzae (Coleoptera: Curculionidae) and Tribolium confusum (Coleoptera: Tenebrionidae) to traps baited with pheromones and food volatiles

The Ecosystem Approach to Grain Storage

New ‘stimuli-enriched’ laboratory bioassay used to identify improved botanical repellent treatment, Lem-ocimum, to control the stored-grain pest Tribolium castaneum

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