Susceptibility of Tribolium castaneum (Coleoptera: Tenebrionidae) and Trogoderma inclusum (Coleoptera: Dermestidae) to cold temperatures. (October 2015)

• Record Type: Journal Article
• Authors: Arthur, F.H.; Hartzer, K.L.; Throne, J.E.; Flinn, P.W.
• Is Part Of: Journal of stored products research. Volume 64 Part A (2016)
• Page Start: 45
• Page End: 53
• Publication Date: 2015-10
• Subjects: Tribolium castaneum -- Trogoderma inclusum -- Cold -- Susceptibility; Food -- Storage -- Periodicals; Farm produce -- Storage -- Diseases and injuries -- Periodicals; Entomology -- Periodicals; Food Contamination -- Periodicals; Food Preservation -- Periodicals; Insect Control -- Periodicals; Aliments -- Entreposage -- Périodiques; Produits agricoles -- Entreposage -- Maladies et dommages -- Périodiques; Electronic journals; 631.568
• DOI: 10.1016/j.jspr.2015.07.006
• Languages: English
• ISSNs: 0022-474X

Abstract

Abstract: Studies were conducted by exposing different life stages of Tribolium castaneum (Herbst), the red flour beetle, and Trogoderma inclusum (LeConte), the larger cabinet beetle, for different time intervals to −18 °C. Assessments were made of direct mortality to eggs, larvae, and adults, and eventual adult emergence of immatures. Data were described by non-linear equations. The eggs and larvae were the most tolerant life stage of T . castaneum . Eight hours of exposure were required for 100% kill of 3–4-day-old eggs and 0–10- and 11–21-day-old larvae, but only 4, 0.5, and 0.5 h respectively were required to completely inhibit adult emergence. For T . inclusum, the most tolerant life stage was 15–28-day-old larvae; 64 and 16 h respectively were required for complete mortality and inhibition of adult emergence. Results indicate that T . inclusum was the more tolerant species, and specific treatment protocols may be required for different stored product beetle species when using −18 °C as a disinfestation strategy. Highlights: Life stages and species of stored product insects vary in their response to cold temperatures. Trogoderma inclusum is more tolerant to cold temperature than Tribolium castaneum . Larvae of Trogoderma inclusum were the most tolerant life stage to cold temperature.