Relative Susceptibility of Tribolium confusum Life Stages Exposed to Elevated Temperatures

2004 ◽  
Vol 97 (6) ◽  
pp. 2168-2173 ◽  
Author(s):  
Dhanaraj Boina ◽  
Bhadriraju Subramanyam
Keyword(s):  
Elevated Temperatures ◽  
Tribolium Confusum ◽  
Life Stages ◽  
Relative Susceptibility

Calorimetric evaluation of responses of Sitophilus oryzae and Tribolium confusum to elevated temperatures and controlled atmospheres

2008 ◽  
Vol 44 (3) ◽  
pp. 295-303 ◽  
Author(s):  
C.J. Downes ◽  
C.W. van Epenhuijsen ◽  
R.E. Lill ◽  
J.E. Downes ◽  
A. Carpenter ◽  
...  
Keyword(s):  
Elevated Temperatures ◽  
Sitophilus Oryzae ◽  
Tribolium Confusum ◽  
Controlled Atmospheres

Susceptibility of different life stages of Tribolium confusum to pyrethrin aerosol: effects of a flour food source on insecticidal efficacy

2014 ◽  
Vol 87 (2) ◽  
pp. 295-300 ◽  
Author(s):  
Kabita Kharel ◽  
Frank H. Arthur ◽  
Kun Yan Zhu ◽  
James F. Campbell ◽  
Bhadriraju Subramanyam
Keyword(s):  
Food Source ◽  
Tribolium Confusum ◽  
Life Stages ◽  
Insecticidal Efficacy ◽  
Aerosol Effects

To Acclimate or Not to Acclimate? Simultaneous Positive and Negative Effects of Acclimation on Susceptibility of Tribolium confusum (Coleoptera: Tenebrionidae) and Oryzaephilus surinamensis (Coleoptera: Silvanidae) to Low Temperatures

2019 ◽  
Vol 112 (5) ◽  
pp. 2441-2449 ◽  
Author(s):  
Christos G Athanassiou ◽  
Frank H Arthur ◽  
Nickolas G Kavallieratos ◽  
Kris L Hartzer
Keyword(s):  
Low Temperatures ◽  
Cold Hardiness ◽  
Cold Treatment ◽  
Tribolium Confusum ◽  
Life Stages ◽  
Oryzaephilus Surinamensis ◽  
Negative Effects ◽  
Cold Temperatures ◽  
Noticeable Increase ◽  
Coleoptera Tenebrionidae

Abstract Laboratory tests on acclimated and nonacclimated life stages of Tribolium confusum Jacquelin du Val (Coleoptera: Tenebrionidae) (adults, pupae, larvae, and eggs) and Oryzaephilus surinamensis (L.) (Coleoptera: Silvanidae) (adults, larvae, and eggs) were conducted at 0, –5, –10, and –15°C to evaluate effects of acclimation on susceptibility to cold treatment. Acclimation of all tested life stages for 7 d at 15°C affected susceptibility of both species to the cold temperatures. After 1 d exposures for ≥2 h, acclimated adults had a noticeable increase in cold tolerance compared with nonacclimated adults for both tested species. Nonacclimated pupae of T. confusum were equally susceptible to cold compared with acclimated pupae at short exposures to low temperatures. Exposure of nonacclimated life stages of T. confusum, at –10°C for 1 d gave 0% survival. Similarly, almost all (99.6%) nonacclimated individuals of O. surinamensis died at –10°C. At 0°C, nonacclimated larvae were more cold tolerant than acclimated larvae, but this trend was reversed when larvae were exposed to –5°C. Mixed results were obtained for larvae of O. surinamensis because in some of the combinations tested, nonacclimated larvae were more tolerant, even at temperatures that were lower than 0°C. In contrast to O. surinamensis, eggs of T. confusum that had not been exposed to cold were not affected by acclimation, while exposure to cold showed increased cold hardiness in acclimated eggs. Results show that individual stored-product insect species may have mixed susceptibility to cold temperatures, which must be taken into account when using cold treatment as a management strategy.

scholarly journals Susceptibility of Tribolium castaneum Life Stages Exposed to Elevated Temperatures during Heat Treatments of a Pilot Flour Mill: Influence of Sanitation, Temperatures Attained Among Mills Floors, and Costs

2012 ◽  
Vol 105 (2) ◽  
pp. 709-717 ◽  
Author(s):  
Monika Brijwani ◽  
Bhadriraju Subramanyam ◽  
Paul W. Flinn ◽  
Michael R. Langemeier ◽  
Michelle Hartzer ◽  
...  
Keyword(s):  
Tribolium Castaneum ◽  
Elevated Temperatures ◽  
Heat Treatments ◽  
Life Stages ◽  
Flour Mill
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