Laboratory selection of resistance by the red flour beetle,tribolium castaneum (Herbst), to an atmosphere of low oxygen concentration

Donahaye, E.

doi:10.1007/bf02980989

Cited by 56 publications

(22 citation statements)

References 9 publications

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“…All stages were obtained from laboratory cultures reared at 26 Ϯ 1ЊC and 70 Ϯ 5% RH (r.h.) on standard cultures (Donahaye 1990). Eggs were separated from oviposition jars by sieving daily.…”

Section: Test Insectsmentioning

confidence: 99%

Toxicity of Propylene Oxide at Low Pressure Against Life Stages of Four Species of Stored Product Insects

Işıkber¹,

Navarro

Finkelman

et al. 2004

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The relative toxicity of propylene oxide (PPO) at a low pressure of 100 mm Hg to four species of stored product insect at 30 degrees C over a 4-h exposure period was investigated. PPO at 100 mm Hg was toxic to all four species tested: Tribolium castaneum (Herbst), Plodia interpunctella (Hübner), Ephestia cautella (Wlk.), and Oryzaephilus surinamensis (L.). There were differences in susceptibility between the life stages of the tested insect species. Mortality tests on all life stages of the insects resulted in LD99 values ranging from 4.7 to 26.1 mg/liter. The pupal stage of E. cautella, O. surinamensis, and T. castaneum was the most tolerant stage with LD99 values of 14.4, 26.1, and 25.7 mg/liter, respectively. For P. interpunctella, the egg stage was most tolerant, with a LD99 value of 15.3 mg/liter. Generally, PPO at 100 mm Hg was more toxic to P. interpunctella and E. cautella than to O. surinamensis and T. castaneum. A 99% mortality of all life stages of the tested species was achieved at a concentrations x time product of 104.4 mg h/liter. These findings indicate that a combination of PPO with low pressure can render the fumigant a potential alternative to methyl bromide for rapid disinfestation of commodities.

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Section: Test Insectsmentioning

confidence: 99%

Toxicity of Propylene Oxide at Low Pressure Against Life Stages of Four Species of Stored Product Insects

Işıkber¹,

Navarro

Finkelman

et al. 2004

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“…Navarro et al (1985a) obtained a similar level of resistance for S. oryzae exposed to hypercarbia by selection over ten generations. T. castaneum populations were exposed to high levels of CO 2 (65 % CO 2 , 20 % O 2 , and 15 % N 2 ) (Donahaye 1990a) or low levels of O 2 (0.5 % O 2 and 99.5 % N 2 ) (Donahaye 1990b), and 95 % r.h. for 40 generations. Selection pressure in both cases was between 50 and 70 % mortality each generation.…”

Section: Effect Of Temperature and Mamentioning

confidence: 99%

The use of modified and controlled atmospheres for the disinfestation of stored products

Navarro¹

2012

J Pest Sci

116

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Storage insects are aerobic organisms requiring oxygen for their survival. Therefore, they respond to altered atmospheric gas compositions containing low O 2 or high CO 2 . The lower the grain moisture content (m.c.) and the corresponding intergranular humidity, the higher the mortality-due to the desiccation effect on insects caused by low O 2 or elevated CO 2 concentrations. To achieve insect control, the temperature of the grain should be above 21°C. Hermetic storage is based on the principle of generation of an oxygen-depleted, carbon dioxide-enriched interstitial atmosphere caused by the respiration of the living organisms in the ecological system of a sealed storage. A sufficiently low oxygen and elevated CO 2 atmosphere is created through a natural metabolic process based on insect respiration and, in cases where the commodity has sufficiently high moisture, the respiration of the microorganisms within a sealed storage system. An O 2 ingress rate of 0.05 %/day is sufficient to arrest the theoretical weight loss at a level of 0.018 % over 1-year storage period. At this ingress rate, the possibility of a residual surviving insect population is eliminated. This low O 2 ingress level could serve as a guideline for the sealing specifications of structures appropriate to the hermetic storage method. The applications for which hermetic technology has been most widely accepted are (a) for longterm storage of cereal grains, primarily rice, corn, barley, and wheat; (b) for long-term storage of a variety of seeds to preserve germination potential and vigor, and (c) for quality preservation of high-value commodities, such as dried fruits.

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“…Eggs of T. confusum were obtained from cultures reared at 26±1°C and 65±5% relative humidity (r.h.) on a diet of wheat flour mixed with dry brewer's yeast (17:1, wt:wt) using standard culture techniques (Donahaye 1990). Eggs of E. kuehniella and P. interpunctella were collected from cultures reared on a diet of a 10:2:1 and 2: 1: 0.25: 0.50: 0.25: 0.25 mixture of oat bran: wheat germ: dry brewer's yeast (Rahman et al 2004) and rough bran: maize flour: dry brewer's yeast: honey: milk powder: glycerin (Ozkan 2006), respectively, under the same environmental conditions described for T. confusum.…”

Section: Test Insectsmentioning

confidence: 99%

Susceptibility of eggs of Tribolium confusum, Ephestia kuehniella and Plodia interpunctella to four essential oil vapors

2009

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Susceptibility of eggs of Tribolium confusum du Val. (Coleoptera: Tenebrionidae), Ephestia kuehniella (Zell.) (Lepidoptera: Phycitidae) and Plodia interpunctella (Hübner) (Lepidoptera: Pyralidae) to vapors of essential oil from garlic (Allium sativum L.), birch (Betula lenta L.), cinnamon (Cinnamonum zeylanicum (Blume)) and aniseed (Pimpinella anisum L.) was studied. Preliminary bioassay tests indicated that vapors of the essential oils had a significant effect on the eggs of tested insect species when exposed to a concentration of 20µl l −1 air for 24 h. Generally, garlic and birch essential oils were more toxic to the eggs of tested insect species than cinnamon and aniseed essential oils (except for eggs of T. confusum). There was also a significant difference between susceptibility of eggs of T. confusum, E. kuehniella and P. interpunctella to tested essential oils. Toxicity data indicated that eggs of T. confusum were more susceptible to tested essential oils, with LC 90 values ranging from 3.11 to 33.49µl l −1 air, than those of E. kuehniella and P. interpunctella; eggs of P. interpunctella were the most tolerant to the essential oils, with LC 90 values ranging from 22.02 to 72.42µl l −1 air. Concentration × time (Ct) products of 0.29, 0.22, 0.13 and 1.37 mg h l −1 for garlic, birch, cinnamon and aniseed essential oil, respectively, were required to obtain 90% kill of T. confusum eggs. Although cinnamon essential oil had a much closer Ct product value to methyl bromide, garlic and birch essential oils were found to be the most promising ones since they had also high fumigant toxicity on eggs of both E. kuehniella and P. interpunctella.

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Laboratory selection of resistance by the red flour beetle,tribolium castaneum (Herbst), to an atmosphere of low oxygen concentration

Cited by 56 publications

References 9 publications

Toxicity of Propylene Oxide at Low Pressure Against Life Stages of Four Species of Stored Product Insects

Toxicity of Propylene Oxide at Low Pressure Against Life Stages of Four Species of Stored Product Insects

The use of modified and controlled atmospheres for the disinfestation of stored products

Susceptibility of eggs of Tribolium confusum, Ephestia kuehniella and Plodia interpunctella to four essential oil vapors

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