Journal of Economic Entomology (1995) 88, 1353-1355

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Guy J. Hallman, Raymond G. McGuire, Elizabeth A. Baldwin and Craig A. Campbell (1995)
Mortality of feral Caribbean fruit fly (Diptera Tephritidae) immatures in coated guavas
Journal of Economic Entomology 88 (5), 1353-1355
Abstract: Guavas from a commercial field near Homestead, FL, that were naturally infested with Caribbean fruit flies, Anastrepha suspensa (Loew), were coated with Nature Seal 2000, Nature Seal containing 4% hydroxypropyl cellulose, or Pac-Rite TFC 213 (a carnauba wax). Precoating infestation rates ranged from 0 to 3.2 larvae per guava, and the mean Caribbean fruit fly survival in guavas coated with Nature Seal (4%), Nature Seal 2000, or Pac-Rite TFC 213 was 9, 46, and 68%, respectively, compared with uncoated controls. Mean days to 50% emergence was 18.2 d for larvae in guavas coated with Nature Seal (4%); this was significantly longer (95% CL) than the mean to 50% emergence for larvae in uncoated guavas (13.4 d) or those in guavas coated with Pac-Rite TFC 213 (13.2 d). Carbon dioxide levels were generally higher and oxygen levels generally lower in Nature Seal-coated guavas compared with uncoated guavas. Coatings can lower Caribbean fruit fly survival rates in guavas and might become a component of a systems approach to allow export of guavas from Florida to parts of the world that require fruit fly treatment.
(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 Guava (Psidium) U.S.A. (SE)