Temperature variation in stored maize and its effect on capture of beetles in grain probe traps

Arbogast, Richard T.; Weaver, David K.; Kendra, Paul E.; Chini, Shahpar R.

doi:10.1016/s0022-474x(02)00085-1

Cited by 17 publications

(7 citation statements)

References 23 publications

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“…It is known that, at least for insects, the decrease in temperature in steel bins causes movement of individuals into the center of the grain mass (Hagstrum 1987, Flinn et al 1992, Arbogast et al 2004). This movement is attributed to the central portion being warmer than the periphery but also to the existence of the "spoutline" (high dockage content in the center of the grain mass) (Muir 1973, Arbogast et al 1998).…”

Section: Discussionmentioning

confidence: 99%

“…However, it is difÞcult to correlate trap catches with actual changes in population (Subramanyam and Hagstrum 1995). Thus, despite the fact that several trapping devices have been developed and used in stored grain, pest densities in stored cereals are usually assessed by using absolute population estimates (numbers per product/ area unit) (Subramanyam and Hagstrum 1995, Athanassiou and Buchelos 2001, Arbogast et al 2004.…”

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confidence: 99%

“…During recent years, several studies have focused on the spatiotemporal distribution of stored-product insect species, in various stored-products and types of storage facilities (Arbogast et al 1998(Arbogast et al , 2000a(Arbogast et al , b, 2002(Arbogast et al , 2003(Arbogast et al , 2004Sciarretta 2002, 2004;Nansen et al 2003Nansen et al , 2004. In most of these studies, the spatial dynamics of stored-product insects was assessed by using trapping devices, whereas there are few relevant data for assessing these dynamics by using absolute sampling methods.…”

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confidence: 99%

“…However, in bulked grain, pests are dispersed in various depths due to the patchy distribution of several biotic and abiotic factors that determine the spatial scale, such as food source, temperature, and humidity (Trematerra and Sciarretta 2002, Arbogast et al 2004, Nansen et al 2004). Although it is generally considered that insects are mainly present on the upper layer of bulked grain (White et al 1990), most species can penetrate deeper in the bulk, which means that additional sampling is required Hagstrum 1995, Weston andBarney 1998).…”

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confidence: 99%

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Spatiotemporal Distribution of Insects and Mites in Horizontally Stored Wheat

Athanassiou

Kavallieratos

Palyvos

et al. 2005

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Samples were taken from a flat storage facility located in central Greece, filled with approximately 45 tons of hard wheat, to assess the spatiotemporal distribution of stored-product insects and mites. The wheat was stored in a 1.5-m-deep bulk from June 2001 until March 2002. The samples were taken with a partitioned grain trier during the entire storage period, at 10-d intervals. The trier samples were examined separately for the upper, medial, and lower 0.5 m of the bulk. The spatial distribution of the insect and mite species found was examined by contour analysis based on the numbers of individuals in the trier samples. Nine insect and 20 mite taxa were found during the sampling period. The most abundant insect species were Tribolium castaneum (Herbst), Cryptolestes ferrugineus (Stephens), and Rhyzopertha dominica (F.); the most abundant mite species were Lepidoglyphus destructor (Schrank), Acarus siro L., and the predator Cheyletus malaccensis Oudemans. The highest population densities for the majority of the insect and mite species were recorded during autumn. The majority of the individuals of the most abundant insect and mite species were found in the upper 0.5 m of the bulk, with the exception of C. malaccensis, which was equally distributed in the upper and medial 0.5 m of the bulk. The spatiotemporal distribution during the entire experimental period was notably varied according to the insect and mite species.

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Section: Discussionmentioning

confidence: 99%

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confidence: 99%

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confidence: 99%

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Spatiotemporal Distribution of Insects and Mites in Horizontally Stored Wheat

Athanassiou

Kavallieratos

Palyvos

et al. 2005

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“…Higher temperatures also could increase beetle numbers in the vicinity of the trap by dispersing individuals aggregating in these areas or beetle population levels in resource patches be greater in warmer areas. Arbogast et al (2004) found a positive correlation between T. castaneum captures in corn (Zea mays L.) bins and temperature, with spatial relationship more associated with population distribution than with inßuence on insect activity. Higher temperatures within mills can result from proximity of milling equipment, because temperatures in mills increase when equipment is operational (Dyte 1965).…”

Section: Spatial Pattern In Beetle Capturesmentioning

confidence: 95%

Influence of Environmental and Physical Factors on Capture of Tribolium castaneum (Coleoptera: Tenebrionidae) in a Flour Mill

et al. 2012

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Variation in environmental and physical factors within food processing facilities can influence both the distribution of stored-product pests and trapping efficiency. Data from a long-term Tribolium castaneum (Herbst) (Coleoptera: Tenebrionidae) monitoring program was used to evaluate spatial variation in captures among trap locations and to determine relationships with environmental and physical variables. From the complete monitoring data set, different subsets were created for the cool and warm seasons, and period of time when environmental and physical factors were measured (2009-2010), with all data sets showing significant differences among trap locations in terms of beetle captures and proportion of time that traps exceeded 2.5 beetles per trap per monitoring period. There was also considerable temporal variation in distribution among the different levels of the mill. Among the environmental and physical variables measured, mean temperature and flour dust accumulation showed the most significant positive relationships with variation of beetle captures at trap locations. More beetles were captured in traps located in close proximity to milling equipment. Presence of equipment near traps was also associated with an increase in flour dust accumulation and temperature. Overall the environmental and physical factors seemed to have a limited influence on variation in captures among trap locations, with temporal variation in distribution perhaps overwhelming potential influences of local trap conditions.

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Advances in the use of pheromones for stored-product protection

Trematerra

2011

J Pest Sci

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Temperature variation in stored maize and its effect on capture of beetles in grain probe traps

Cited by 17 publications

References 23 publications

Spatiotemporal Distribution of Insects and Mites in Horizontally Stored Wheat

Spatiotemporal Distribution of Insects and Mites in Horizontally Stored Wheat

Influence of Environmental and Physical Factors on Capture of Tribolium castaneum (Coleoptera: Tenebrionidae) in a Flour Mill

Advances in the use of pheromones for stored-product protection

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