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1 August 2007 Ethyl Formate As a Postharvest Fumigant for Selected Pests of Table Grapes
T. Simpson, V. Bikoba, C. Tipping, E. J. Mitcham
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Abstract

Ethyl formate (EF) in combination with CO2 was tested for control of arthropods commonly infesting California table grapes. In addition, table grape tolerance to EF exposure was evaluated. LC99 estimates were developed for target pests by using a range of EF concentrations (0.04–4.7% EF). Response to treatments varied greatly between species, as well as life stages within species. Western flower thrips, Frankliniella occidentalis (Pergande), and adult and crawler stages of grape mealybug, Pseudococcus maritimus (Ehrhorn), were most susceptible to EF treatments. Least susceptible were grape mealybug eggs; Pacific spider mite, Tetranychus pacificus McGregor; and omnivorous leafroller, Platynota stultana Walsingham. The LC99 for target pests fell within the range of EF concentrations tolerated by table grapes with the exception of 1-, 3-, and 5-d-old omnivorous leafroller pupae.

T. Simpson, V. Bikoba, C. Tipping, and E. J. Mitcham "Ethyl Formate As a Postharvest Fumigant for Selected Pests of Table Grapes," Journal of Economic Entomology 100(4), 1084-1090, (1 August 2007). https://doi.org/10.1603/0022-0493(2007)100[1084:EFAAPF]2.0.CO;2
Received: 2 May 2006; Accepted: 18 September 2006; Published: 1 August 2007
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