Effects of Low-Oxygen Atmospheres Containing Different Concentrations of Carbon Dioxide on Mortality of the Navel Orangeworm, Amyelois transitella Walker (Lepidoptera: Pyralidae)

Brandl, David G.; Soderstrom, Edwin L.; Schreiber, Fred

doi:10.1093/jee/76.4.828

Cited by 20 publications

(16 citation statements)

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“…Several alternative methods have been suggested, including ionizing radiation (Johnson and Marcotte, 1999), cold storage (Johnson et al, 1997), controlled atmospheres (Brandl et al, 1983), and combination treatments (Johnson et al, 1998). All would require substantial capital investment and alteration of existing facilities.…”

Section: Introductionmentioning

confidence: 99%

Thermal-death kinetics of fifth-instar Amyelois transitella (Walker) (Lepidoptera: Pyralidae)

Wang

Tang

Johnson

et al. 2002

Journal of Stored Products Research

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Information on kinetics for thermal mortality of navel orangeworm, Amyelois transitella (Walker) (Lepidoptera: Pyralidae), is needed for developing post-harvest phytosanitation thermal treatments of walnuts. Thermal-death kinetics for fifth-instar navel orangeworms were determined at temperatures between 461C and 541C at a heating rate of 181C min À1 using a heating block system. Thermal-death curves for fifth-instar navel orangeworms followed a 0.5th-order of kinetic reaction. The time required to achieve 100% mortality (N 0 ¼ 600) decreased with increasing temperature in a logarithmic manner. Complete kill of 600 insects required a minimum exposure time of 140, 50, 15, 6, and 1 min at 461C, 481C, 501C, 521C, and 541C, respectively. The reaction rate (k) was affected by treatment temperatures following an Arrhenius relationship. The activation energy for thermal kill of fifth-instar navel orangeworms was estimated to be between 510 and 520 kJ mol À1 . r

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Section: Introductionmentioning

confidence: 99%

Thermal-death kinetics of fifth-instar Amyelois transitella (Walker) (Lepidoptera: Pyralidae)

Wang

Tang

Johnson

et al. 2002

Journal of Stored Products Research

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“…In our studies with thrips at 32.2ЊC, a pure N 2 atmosphere provided better control than a pure CO 2 atmosphere. With other insects species, efÞcacy has been signiÞcantly higher using pure N 2 (Soderstrom et al 1991; codling moth eggs), whereas at other times using pure CO 2 (e.g., Brandl et al 1983; navel orangeworm larvae). O 3 fumigation of insects can be carried out in a variety of different atmospheres (CO 2 , O 2 , BA, or N 2 ).…”

Section: Discussionmentioning

confidence: 98%

“…In addition, shorter treatment times would reduce the chance that commodities would be damaged by a modiÞed atmosphere treatment containing CO 2 . This is an important consideration because exothermic generators burning methane or propane fuel are an economical means for producing low oxygen atmospheres comprised of Յ0.5% O 2 , 10 Ð13% CO 2 , with the balance as N 2 (Brandl et al 1983). …”

Section: Discussionmentioning

confidence: 99%

“…Desiccation was probably an important factor causing mortality of thrips under these conditions. High CO 2 or low O 2 concentrations can arrest heart contractions and cause spiracles to open, with the result that insects are unable to regulate loss of water from the body (Brandl et al 1983, Zettler et al 2002. Jay and Cuff (1981) measured weight loss of T. castaneum exposed to atmospheres high in N 2 and concluded that water loss was probably the major cause of death.…”

Section: Discussionmentioning

confidence: 99%

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Potential of Temperature, Controlled Atmospheres, and Ozone Fumigation to Control Thrips and Mealybugs on Ornamental Plants for Export

Hollingsworth¹,

Armstrong²

2005

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Ozone (O3) fumigation is a potential quarantine treatment alternative for controlling stored-product pests and surface insect pests on fresh agricultural commodities. We explored the effects of temperature, treatment time, controlled atmospheres, and vacuum in combination with O3 to control two important pests of ornamental crops: western flower thrips, Frankliniella occidentalis (Pergande), and longtailed mealybug, Pseudococcus longispinus Targioni Tozzetti. Treatment parameters tested were O3 concentrations from 0 to 3,800 ppm, treatment durations were from 30 to 120 min, vacuums were from 0 to 0.41 bar below ambient, temperatures were from 32.2 to 40.6 degrees C, and controlled atmospheres were composed primarily of nitrogen, carbon dioxide, or breathing air [BA]. Treatment efficacy was enhanced by higher O3 concentration and temperature, lower oxygen, and longer treatment times. Reduced pressure was not an important factor. Mealybugs were more difficult to kill than thrips. A 30-min treatment of O3 at approximately 200 ppm in 100% CO2 at 37.8 degrees C killed 47.9 and 98.0% of mealybugs and adult female thrips, respectively. All of the ornamentals tested were damaged to some degree by O3 treatments. However, crops with thick leaves such as orchids exhibited little damage, and the waxy portions of certain flowers were not damaged. The results suggest that O3 has potential as a quarantine treatment to control thrips and mealybugs on selected commodities.

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“…Several nonchemical alternative methods to control Indianmeal moth infestations have been suggested, including ionizing radiation (Johnson and Marcotte 1999), cold storage (Johnson et al 1997), controlled atmospheres (Brandl et al 1983), and combination treatments (Johnson et al 1998). All have disadvantages such as substantial capital investment, extensive alteration of existing facilities, lengthy treatment times, or concerns over consumer acceptance.…”

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confidence: 99%

Thermal Death Kinetics of Fifth-instar <I>Plodia interpunctella</I> (Lepidoptera: Pyralidae)

Johnson¹,

Wang²,

Tang³

2003

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Heat treatments have been suggested as alternatives to chemical fumigants for control of postharvest insects in dried fruits and nuts. Conventional forced hot air treatments heat product too slowly to be practical, but radio frequency treatments are capable of more rapid product heating. While developing radio frequency heat treatments for dried fruits and nuts, the heat tolerance of nondiapausing and diapausing fifth-instar larvae of the Indianmeal moth, Plodia interpunctella (Hübner), was determined using a heating block system developed by Washington State University. Both a 0.5th order kinetic model and a classical empirical model were used to estimate lethal exposure times for temperatures of 44-52 degrees C for nondiapausing fifth-instar larvae. We obtained 95% mortality at exposures suitable for practical radio frequency treatments (< or = 5 min) with temperatures of 50 and 52 degrees C. Diapausing larvae were significantly more tolerant than nondiapausing larvae at the lowest treatment temperature and shortest exposure, but differences were not significant at more extreme temperature-time combinations. Previous studies showed that fifth-instar larvae of the navel orangeworm, Amyelois transitella (Walker), were more heat tolerant than either diapausing or nondiapausing Indianmeal moth larvae. Consequently, efficacious treatments for navel orangeworm would also control Indianmeal moth.

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Effects of Low-Oxygen Atmospheres Containing Different Concentrations of Carbon Dioxide on Mortality of the Navel Orangeworm, Amyelois transitella Walker (Lepidoptera: Pyralidae)

Cited by 20 publications

References 0 publications

Thermal-death kinetics of fifth-instar Amyelois transitella (Walker) (Lepidoptera: Pyralidae)

Thermal-death kinetics of fifth-instar Amyelois transitella (Walker) (Lepidoptera: Pyralidae)

Potential of Temperature, Controlled Atmospheres, and Ozone Fumigation to Control Thrips and Mealybugs on Ornamental Plants for Export

Thermal Death Kinetics of Fifth-instar <I>Plodia interpunctella</I> (Lepidoptera: Pyralidae)

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