Effect of grain on apparent respiration of adult stored-product Coleoptera in anair-tight system: implications for fumigant testing

Damcevski, Katherine; Annis, P.C.; Waterford, C. J.

doi:10.1016/s0022-474x(98)00019-8

Cited by 18 publications

(7 citation statements)

References 12 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…However, this is not uncommon among animals, with respiratory quotients (RQs) or RERs below 0.7 reported for a number of species (Fink 1925;Rouland et al 1993;Walsberg and Wolf 1995;Damcevski et al 1998;Vogt and Appel 1999;Walsberg and Hoffman 2005;Blossman-Myer and Burggren 2010). To account for these low RER values, we propose that bed bugs may be converting the protein-rich blood meal into glucose using gluconeogenesis (Schutz and Ravussin 1980).…”

Section: Effects Of Time After Feeding/molting On Rermentioning

confidence: 97%

Effects of Starvation and Molting on the Metabolic Rate of the Bed Bug (Cimex lectulariusL.)

DeVries¹,

Kells²,

Appel³

2015

Physiological and Biochemical Zoology

View full text Add to dashboard Cite

The bed bug (Cimex lectularius L.) is a common hematophagous pest in the urban environment and is capable of surviving extended periods of starvation. However, the relationship between starvation and metabolism in bed bugs is not well understood. To better understand this relationship, we measured the metabolism of all life stages for >900 h after feeding (starvation) using closed-system respirometry. Measurements were made around molting for the immature life stages, which occurs only after a blood meal. In addition, both mated and unmated adults were measured. Starvation and molting had significant effects on the metabolism of the bed bug. Mass-specific metabolic rate (V(O2); mL g(-1) h(-1)) declined in a curvilinear fashion with the period of starvation for adults and with the postmolting period for immature bed bugs (used to standardize all immature life stages). A standard curve was developed to depict the generalized pattern of metabolic decline observed in all life stages that molted. Individual metabolic comparisons among life stages that molted revealed some differences in metabolic rate between unmated males and females. In addition, the mass scaling coefficient was found to decline with starvation time (postmolting time) for all life stages that molted. In most life stages, the ratio of V(CO2) to V(O2) (respiratory exchange ratio) declined over time, indicating a change in metabolic substrate with starvation. Finally, daily percent loss in body mass declined in a pattern similar to that of V(O2). The observed patterns in metabolic decline are evaluated in relation to the life history of bed bugs. In addition, the evolutionary development of these patterns is discussed. The metabolic pattern after feeding was also found to share several similarities with that of other ectothermic species.

show abstract

Section: Effects Of Time After Feeding/molting On Rermentioning

confidence: 97%

Effects of Starvation and Molting on the Metabolic Rate of the Bed Bug (Cimex lectulariusL.)

DeVries¹,

Kells²,

Appel³

2015

Physiological and Biochemical Zoology

View full text Add to dashboard Cite

show abstract

“…It is a time-consuming method and the accuracy is low for developing life stages. The thermal imaging could serve as an alternative method to detect insect infestation because, the respiration of insects result in heat production higher than that of the grain (Damcevski et al 1998;Emekci et al 2002). An infrared thermal camera ThermaCAM SC500 was used by Manickavasagan et al (2007) to test whether insect infestation could be determined using thermal imaging.…”

Section: Grain Storagementioning

confidence: 99%

Applications of Thermal Imaging in Agriculture and Food Industry—A Review

Vadivambal

Jayas

2010

Food Bioprocess Technol

264

135

View full text Add to dashboard Cite

Thermal imaging is a technique to convert the invisible radiation pattern of an object into visible images for feature extraction and analysis. Infrared thermal imaging was first developed for military purposes but later gained a wide application in various fields such as aerospace, agriculture, civil engineering, medicine, and veterinary. Infrared thermal imaging technology can be applied in all fields where temperature differences could be used to assist in evaluation, diagnosis, or analysis of a process or product. Potential use of thermal imaging in agriculture and food industry includes predicting water stress in crops, planning irrigation scheduling, disease and pathogen detection in plants, predicting fruit yield, evaluating the maturing of fruits, bruise detection in fruits and vegetables, detection of foreign bodies in food material, and temperature distribution during cooking. This paper reviews the application of thermal imaging in agriculture and food industry and elaborates on the potential of thermal imaging in various agricultural practices. The major advantage of infrared thermal imaging is the non-invasive, non-contact, and non-destructive nature of the technique to determine the temperature distribution of any object or process of interest in a short period of time.

show abstract

“…opening of spiracles due to the presence of CO 2 would promote the uptake of EF, resulting in higher mortality. Additionally, the rate of water loss increases when spiracles are open, with the result that insects at higher CO 2 concentrations shift to metabolising stored fat to produce water to compensate for this loss (Damcevski et al 1998). It is possible that EF is metabolised via the same fat metabolism pathways, accounting for the synergistic effects between EF and CO 2 hinted at in this experiment and other research (Haritos et al 2006).…”

Section: Discussionmentioning

confidence: 63%

Mortality of kiwifruit pests (Coccoidea) exposed to ethyl formate delivered using either carbon dioxide or nitrogen carrier gases

Brown

Page-Weir

Hawthorne

et al. 2018

NZPP

View full text Add to dashboard Cite

Ethyl formate (EF) is used as a fumigant against insect pests on many commodities. Delivery of EF uses a carrier gas, usually carbon dioxide (CO 2 ), to reduce its flammability. However, CO 2 is expensive and can only be delivered relatively slowly. Nitrogen (N 2 ) has been proposed as an alternative. The efficacy of EF delivered using CO 2 or N 2 , was evaluated at 5 and 15°C, against two important postharvest pests of kiwifruit (greedy scale (Hemiberlesia rapax, Hemiptera: Diaspididae) and obscure mealybug (Pseudococcus viburni, Hemiptera: Pseudococcidae)). Mortalities of both insect species were higher in the presence of CO 2 than N 2 . There was a strong interaction with treatment temperature: N 2 at 5°C resulted in low mortality across both species. Greedy scale was more susceptible to EF than obscure mealybug across all treatments. Nitrogen as a carrier gas for EF substantially lowered the efficacy of EF as an insecticidal fumigant, relative to CO 2 . This is hypothesised to be caused by differing respiration rates across temperatures and CO 2 concentrations. Solutions for rapid CO 2 delivery should be explored over further trials with N 2 at low temperatures.

show abstract

Effect of grain on apparent respiration of adult stored-product Coleoptera in anair-tight system: implications for fumigant testing

Cited by 18 publications

References 12 publications

Effects of Starvation and Molting on the Metabolic Rate of the Bed Bug (Cimex lectulariusL.)

Effects of Starvation and Molting on the Metabolic Rate of the Bed Bug (Cimex lectulariusL.)

Applications of Thermal Imaging in Agriculture and Food Industry—A Review

Mortality of kiwifruit pests (Coccoidea) exposed to ethyl formate delivered using either carbon dioxide or nitrogen carrier gases

Contact Info

Product

Resources

About