For best browsing experience, please use Internet Explorer 7 or a later version.
Type = Unknown
Name = Unknown
Version = 0.0
Major Version = 0
Minor Version = 0
Platform = Unknown
Is Beta = False
Is Crawler = False
Is AOL = False
Is Win16 = False
Is Win32 = False
Supports Frames = False
Supports Tables = False
Supports Cookies = True
Supports VB Script = False
Supports JavaScript = 0.0
Supports Java Applets = False
CDF = False
Skip Ribbon Commands
Skip to main content
IDIDAS : References: Postharvest Irradiation Treatment for Quarantine Control of Drosophila suzukii (Diptera: Drosophilidae) in Fresh Commodities

Title

Postharvest Irradiation Treatment for Quarantine Control of Drosophila suzukii (Diptera: Drosophilidae) in Fresh Commodities

Year

2014

Source

J. Econ. Entomol. 107(3): 964-969; DOI: http://dx.doi.org/10.1603/EC14006

Abstract

Irradiation is a postharvest quarantine treatment option for exported commodities such as stone fruits and small fruits to prevent movement of the new invasive pest spotted wing drosophila, Drosophila suzukii (Walker) (Diptera: Drosophilidae). The effects of irradiation on larval and pupal development and adult reproduction in D. suzukii were examined. Larvae (Þrst, second, and third instars) and pupae (1-2-d-old, 3-5-d-old, and 7-8-d-old) on diet were irradiated at target doses of 20, 30, 40, and 50 Gy in replicated factorial experiments and survival to the adult stage was recorded. Tolerance to radiation increased with increasing age and developmental stage. Males and females were equally susceptible.Aradiation dose of 40 Gy applied to Þrst- and second-instar larvae prevented adult emergence. The late-stage pupa was the most radiation-tolerant stage that occurs in fruit, and individuals irradiated at this stage readily emerged as adults; therefore, prevention of F1 adults was the desired treatment response for large-scale validation tests with naturally infested fruit. In largescale tests, a radiation dose of 80 Gy applied to late-stage pupae in sweet cherries or grapes resulted in no production of F1 adults in 33,000 treated individuals, which meets the zero tolerance requirement for market access. A minimum absorbed dose of 80 Gy is recommended for quarantine control of D. suzukii.

Authors

FOLLETT PETER A., SWEDMAN ALLISON, AND PRICE DONALD K.

Keywords

X-ray radiation, radio-tolerance, invasive species, regulatory pest, phytosanitary treatment

Attachments

Content Type: Item
Created at 03/06/2014 18:09 by Abdeljelil Bakri
Last modified at 03/06/2014 18:09 by Abdeljelil Bakri