Thermal resistance of different life stages of codling moth (Lepidoptera: Tortricidae)

Wang, S; X, Yin; Tang, Juming; Hansen, James D.

doi:10.1016/j.jspr.2003.09.002

Cited by 46 publications

(24 citation statements)

References 23 publications

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“…Whiting et al (1995) found in their study of 1st, 3rd and 5th instar larvae of E. postvittana at 40°C, the same increase in LT 99 with increasing larval instar. Higher temperature tolerance for older larvae over younger larvae has also been reported for Tribolium confusum (Boina and Subramanyam, 2004) at six different temperatures between 46 and 60°C and for codling moth, C. pomonella, at six out of nine temperature and time combinations between 48 and 52°C (Wang et al, 2004). No differences were found between L1 and L3 larvae of olive fruit fly, Bactroceraolea (Pappas et al, 2010) at a range of temperatures between 34 and 40°C, and a higher temperature tolerance for younger over older larvae was shown for Stegobium paniceum at 42°C (Abdelghany et al, 2010).…”

Section: Discussionsupporting

confidence: 54%

“…For the dynamic method, the two most commonly used endpoints associated with CT max are ''loss of righting response'' (LRR) and the ''sudden onset of muscular spasms'' (OS) (Lutterschmidt and Hutchison, 1997), and a wide range of variation exists in the ramping rates used for increasing the experimental temperatures. For the static method, mortality is also determined from a range of different endpoints, such as inability to walk, lack of response to probing or a light beam (Loeschcke et al, 1994;Feder and Krebs, 1997), or ability to develop to the next stage in the life cycle (Krebs and Loeschcke, 1999;Mahroof et al, 2003;Wang et al, 2004).…”

Section: Introductionmentioning

confidence: 99%

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Ecologically relevant measures of the physiological tolerance of light brown apple moth, Epiphyas postvittana, to high temperature extremes

Bürgi

Mills

2012

Journal of Insect Physiology

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Section: Discussionsupporting

confidence: 54%

Section: Introductionmentioning

confidence: 99%

Ecologically relevant measures of the physiological tolerance of light brown apple moth, Epiphyas postvittana, to high temperature extremes

Bürgi

Mills

2012

Journal of Insect Physiology

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“…Regarding heat tolerance, most of the studies have focussed on the efficiency of quarantine treatments, such as for fruit flies (e.g., Yahia and Ortega‐Zaleta ) or codling moths (e.g., Wang et al. ). Unfortunately, little is known about the heat resistance of insect species in the context of more frequent heat waves.…”

Section: Discussionmentioning

confidence: 99%

Are heat waves susceptible to mitigate the expansion of a species progressing with global warming?

Robinet¹,

Rousselet²,

Pineau³

et al. 2013

Ecology and Evolution

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A number of organisms, especially insects, are extending their range in response of the increasing trend of warmer temperatures. However, the effects of more frequent climatic anomalies on these species are not clearly known. The pine processionary moth, Thaumetopoea pityocampa, is a forest pest that is currently extending its geographical distribution in Europe in response to climate warming. However, its population density largely decreased in its northern expansion range (near Paris, France) the year following the 2003 heat wave. In this study, we tested whether the 2003 heat wave could have killed a large part of egg masses. First, the local heat wave intensity was determined. Then, an outdoor experiment was conducted to measure the deviation between the temperatures recorded by weather stations and those observed within sun-exposed egg masses. A second experiment was conducted under laboratory conditions to simulate heat wave conditions (with night/day temperatures of 20/32°C and 20/40°C compared to the control treatment 13/20°C) and measure the potential effects of this heat wave on egg masses. No effects were noticed on egg development. Then, larvae hatched from these egg masses were reared under mild conditions until the third instar and no delayed effects on the development of larvae were found. Instead of eggs, the 2003 heat wave had probably affected directly or indirectly the young larvae that were already hatched when it occurred. Our results suggest that the effects of extreme climatic anomalies occurring over narrow time windows are difficult to determine because they strongly depend on the life stage of the species exposed to these anomalies. However, these effects could potentially reduce or enhance the average warming effects. As extreme weather conditions are predicted to become more frequent in the future, it is necessary to disentangle the effects of the warming trend from the effects of climatic anomalies when predicting the response of a species to climate change.

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“…The insects were shipped from YARL to Washington State University (WSU) (Pullman, WA) by overnight delivery for RF and hot water treatments. Since the fifth-instars were the most heat tolerant stage of the codling moth (Yokoyama et al, 1991;Wang et al, 2002aWang et al, , 2004, late fourth to early fifth-instars were removed from the artificial diet and used for artificial infestation of apples. Seven apples and 35 larvae per replicate were enclosed in a single ventilated plastic container.…”

Section: Sample Preparationsmentioning

confidence: 99%

Postharvest treatment to control codling moth in fresh apples using water assisted radio frequency heating

Wang

Birla

Tang

et al. 2006

Postharvest Biology and Technology

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Apples destined for export to Japan and South Korea are currently disinfested for codling moth, Cydia pomonella L. (Lepidoptera: Tortricidae), using methyl bromide fumigation. Restrictions and limitations imposed on the uses of methyl bromide have increased interest in developing alternative non-chemical quarantine treatments. It is imperative that the treatment is effective against codling moth yet maintains the quality of treated apples. The present study explored the application of radio frequency (RF) energy in conjunction with conventional hot water treatment to develop feasible heat treatments. Treatment parameters were selected based on minimum time-temperature conditions required for 100% mortality of fifth-instar codling moth and apple quality. The treatments included preheating of infested or wholesome apples in warm water at 45• C for 30 min. The preheated apples were then heated to 48• C in a hydraulic fruit mover placed between two parallel plate electrodes in a 12 kW, 27.12 MHz pilot scale RF system. RF treated apples were transferred to a 48• C hot water bath and held for 5, 10, 15 and 20 min before being hydro-cooled in ice water for 30 min. The mortality of codling moths in the infested apples was assessed, and the quality of wholesome apples was evaluated by measuring weight loss, firmness, color, soluble solids content, and titratable acidity after 0, 7, and 30 days of storage at 4• C. The results showed that the treatment at 48• C for 15 min was the most practical and effective both for insect control and apple quality.

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Thermal resistance of different life stages of codling moth (Lepidoptera: Tortricidae)

Cited by 46 publications

References 23 publications

Ecologically relevant measures of the physiological tolerance of light brown apple moth, Epiphyas postvittana, to high temperature extremes

Ecologically relevant measures of the physiological tolerance of light brown apple moth, Epiphyas postvittana, to high temperature extremes

Are heat waves susceptible to mitigate the expansion of a species progressing with global warming?

Postharvest treatment to control codling moth in fresh apples using water assisted radio frequency heating

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