Journal of Economic Entomology (1994) 87, 405-408

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Guy J. Hallman (1994)
Mortality of third-instar Caribbean fruit fly (Diptera: Tephritidae) reared at three temperatures and exposed to hot water immersion or cold storage
Journal of Economic Entomology 87 (2), 405-408
Abstract: Caribbean fruit flies, Anastrepha suspensa (Loew), were reared from egg to third instar at 20, 25, or 30 + 0.3°C in a semiartificial diet, carambola, and guavas, then exposed to hot water immersion (43-46°C) and cold storage (1°C) quarantine treatments. Caribbean fruit flies were more tolerant of heat when reared at higher temperatures than low temperatures inside the range of 20-30°C. Third instars reared on semiartificial diet at 30°C had significantly less mortality (49.0%) than those reared at 20°C (942%) when insects reared at both temperatures were immersed in water at 43°C for 21 min. In tests with large numbers of third instars reared on semiartificial diet, mortality was 100, 99.9909, and 99.926% for larvae reared at 20, 25, and 30°C, respectively, and immersed in water at 43°C for 43 min. Mortality of Caribbean fruit fly larvae reared inside guavas at 20, 25, and 30°C immersed in hot water at 46°C for 25 min was 100, 99.917, and 99.40%, respectively. This information should be considered when heat quarantine treatments and models of Caribbean fruit fly mortality to heat are designed. Rearing temperature (20-30°C) did not affect tolerance to 1°C cold storage.
(The abstract is excluded from the Creative Commons licence and has been copied with permission by the publisher.)
Database assignments for author(s): Guy J. Hallman

Research topic(s) for pests/diseases/weeds:
control - general
quarantine treatments/regulations/aspects


Pest and/or beneficial records:

Beneficial Pest/Disease/Weed Crop/Product Country Quarant.


Anastrepha suspensa