Whorl Treatments for Control of European Corn Borer and Fall Armyworm in Sweet Corn, 1982 | Zendy

D. W. Sherrod | Zendy; J. A. Francis | Zendy

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Whorl Treatments for Control of European Corn Borer and Fall Armyworm in Sweet Corn, 1982

Author(s) -

D. W. Sherrod,

J. A. Francis

Publication year - 1983

Publication title -

insecticide and acaricide tests

Language(s) - English

Resource type - Journals

ISSN - 0276-3656

DOI - 10.1093/iat/8.1.116a

Subject(s) - sprayer , whorl (mollusc) , randomized block design , fall armyworm , acre , biology , population , horticulture , agronomy , botany , biochemistry , demography , spodoptera , sociology , gene , genus , recombinant dna

‘NK 199’ was planted in single row plots 25 f t long on Jun 3. Treatments were replicated 4 times and arranged in a randomized complete block design. Foliar sprays were applied to the whorl using a propane compressed air backpack sprayer with 1 hollow cone nozzle/row delivering 25 gal water/acre at 40 psi. Granular insecticides were applied with hand-held shakers over the top of the plants. Applications were made on Jul 7 and 12. The corn was approximately 3 ft tall at the time of 1st application. Evaluations were made on Jul 23 by counting the number of damaged whorls per 10 plants in the middle of each plot. The larval population was approximately 60% European corn borer and 40% fall armyworm.

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