Open AccessOvicidal Efficacy Against Corn Earworm on Excised Strawberry Leaves, 1986
Author(s) -
William D. Wiesenborn,
John T. Trumble,
V. Voth
Publication year - 1987
Publication title -
insecticide and acaricide tests
Language(s) - English
Resource type - Journals
ISSN - 0276-3656
DOI - 10.1093/iat/12.1.83a
Subject(s) - hatching , acre , biology , horticulture , larva , agronomy , toxicology , botany , zoology
Eighteen strawberry leaves with petioles in water were placed for 12 h in a cage containing 30 male and 30 female corn earworm adults (USDA lab strain). Randomly-selected leaves were dipped in 400 ml of insecticide 30 h following the oviposition period. Each leaf was an experimental unit; there were 3 replications. Insecticide concentrations were based on 100 gal/acre. After the insecticide dried, 15 fertile (ringed) eggs from each leaf were isolated by placing cut pieces of leaf each with 1 egg on moist cellucotton in uncovered 1-oz plastic cups. Eggs were kept at 27 ± 1°C and evaluated for hatching 96 h after the oviposition period.
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