TL;DR: Temperatures of wheat in the top meter in on-farm cylindrical metal bins in Kansas were uniform and within a favorable range of 27-34°C for the first 12 wk and then declined at rates ranging from 1.3 to 2°C/wk as mentioned in this paper.
Abstract: Temperatures of wheat in the top meter in on-farm cylindrical metal bins in Kansas were uniform and within a favorable range of 27–34°C for the first 12 wk and then declined at rates ranging from 1.3 to 2°C/wk. Cooling of grain from the outside and surface inward and downward resulted in temperature gradients. Grain moisture in the top 0.5 m declined during the first 12 wk and then increased to levels well above initial moisture. Elsewhere in the top meter, wheat retained its initial moisture level except for the tendency of grain near the bin wall to be drier. Population growth rate of the dominant species, Cryptolestes ferrugineus (Stephens), declined over the wheat storage period in the top meter of grain as a result of first the parasite Cephalonomia waterstoni Gahan and then falling temperatures. C. ferrugineus adults showed only a slight tendency to move toward the warmer or moister parts of the bin. Trogoderma glahrum (Herbst) adults and larvae and Trogoderma inclusum LeConte adults, the next most abundant species, were found mainly near the bin wall. Rhyzopertha dominica (F.) were first detected after 12 wk and were found only in the center.
TL;DR: Two Dermestid beetles, Trogoderma granarium Everts and T. versicolor (Creutz.) have been recorded on a variety of stored products and the life-history is described.
Abstract: Two Dermestid beetles, Trogoderma granarium Everts and T. versicolor (Creutz.) have been recorded on a variety of stored products. In England, T. granarium is a serious pest only in maltings. The life-history is described. The larvae are responsible for the damage to stored products, and their hairy nature facilitates the spread of infestations on sacking and clothing.All stages in the life-cycle are resistant to heat and dryness.
Abstract: A new species, Trogoderma sahondrae sp. nov., from Central Madagascar is described and illustrated and a key to all known Madagascan species is provided. The new species differs from other related species by the combination of colour of the elytral fasciae, structure of antennae, and male genitalia.
TL;DR: Development time of Tribolium castancum (Herbst) and Trogoderma iuclusum (LeConte) was reduced by about 9–12% when beetles were exposed to sinusoidal fluctuating temperatures with 10°C range and mean of 25°C rather than a constant25°C.
Abstract: Development time of Tribolium castancum (Herbst) and Trogoderma iuclusum (LeConte) was reduced by about 9–12% when beetles were exposed to sinusoidal fluctuating temperatures with 10°C range and mean of 25°C rather than a constant 25°C. Sitophilus oryzae (L.) showed no significant difference in the effect of the 2 temperature conditions upon development time.
During the 1st 14 days after emergence, the fecundity of T. castancum was apparently greater in fluctuating than in constant temperature; fecundity of T. inclusum and S. oryzae was not different in the 2 temperature regimens.
TL;DR: Two components of the sex attractant of a female dermestid beetle Trogoderma inclusum Le Conte were identified and other TrogoderMA species also respond to the compounds.
Abstract: Two components of the sex attractant of a female dermestid beetle Trogoderma inclusum Le Conte were identified They are (-)-14-methyl-cis-8-hexadecen-1-ol and (-)-methyl-14-methyl-cis-8-hexadecenoate Other Trogoderma species also respond to the compounds