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- W2002573960 abstract "J. Agric. Urban Entomol. 27: 50–53 (2010/2011) The eggplant flea beetle, Epitrix fuscula Crotch (Coleoptera: Chrysomelidae), is a serious pest of eggplant, Solanum melongena L. var. esculentum (Solanaceae), at time of transplanting. Eggplant seedlings, both commercial and for home gardens, are grown in greenhouses and moved to the field as clos et o the local frost-free date as possible in the spring. At this stage of plant development, plants are susceptible to injury from flea beetles. In the Mid-South of the U.S.A., eggplant flea beetles overwinter as adults. Flea beetles can locate the new seedlings within hours of transplanting and begin to feed on both the upper and lower leaf surfaces (McLeod 2006). The beetles initially produce small ‘‘shot-holes’’ and as feeding continues, the small holes can coalesce into large areas of necrotic leaf tissue. Commercial and home garden eggplants often require flea beetle management with foliar applied insecticides. Without this management, heavily infested transplants can be killed. Injury is common along the edges of large commercial eggplant fields (Diaz et al. 2004). If transplants survive flea beetle attack for two or three weeks and initiate rapid growth, the eggplant flea beetle appears to have little additional impact on the plant (Sorensen & Baker 1994). Several effective insecticides are currently labeled for eggplant flea beetle management on eggplant. However, interest exists in the development of alternative insecticides, especially for the organic market. Although field testing of candidate insecticides generally provides the best information for new insecticide selection, this can be expensive and may require several seasons of testing. Laboratory bioassays can be utilized to rapidly screen new insecticides for toxicity to various insect species. This information can be used to rapidly narrow the list of insecticides for further testing in field trials. With the eggplant flea beetle, laboratory bioassays have been difficult due to a lack of an available rearing technique, the minute size of the insect, and difficulties with the jumping behavior of the flea beetle. This report describes a procedure for eggplant flea beetle collection from the field, handling, and determination of insecticide toxicity with a laboratory bioassay. The flea beetles used in the study were collected from field produced ‘‘Black Beauty’’ eggplant grown at the University of Arkansas Main Experimental 1" @default.
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- W2002573960 date "2010-01-01" @default.
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- W2002573960 title "A Caging, Handling, and Bioassay Procedure for Eggplant Flea Beetle, Epitrix fuscula Crotch (Coleoptera: Chrysomelidae)" @default.
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- W2002573960 doi "https://doi.org/10.3954/1523-5475-27.1.50" @default.
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