Control of Aster Leafhopper on Lettuce, 1978 | Zendy

P. S. Robbins | Zendy; D. R. Webb | Zendy; C. J. Eckenrode | Zendy

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Control of Aster Leafhopper on Lettuce, 1978

Author(s) -

P. S. Robbins,

D. R. Webb,

C. J. Eckenrode

Publication year - 1979

Publication title -

insecticide and acaricide tests

Language(s) - English

Resource type - Journals

ISSN - 0276-3656

DOI - 10.1093/iat/4.1.81

Subject(s) - sprayer , seeder , seeding , row , randomized block design , tractor , mathematics , leafhopper , nozzle , horticulture , agronomy , biology , physics , botany , computer science , statistics , database , hemiptera , thermodynamics

Each treatment consisted of two 45-ft rows bordered on each side by 2 untreated rows and planted in a randomized complete block design with 15-ft- roadways between blocks. The test was planted on Jun 16 using a Stan-Hay 2-row precision seeder. The seeding rate was 15 seeds/ft, but was thinned to ca 1/ft on Jul 20. Spray applications were made using a PTO-driven tractor mounted 2-row sprayer delivering 33.7 gallons H2O/A on a 36-inch row basis through 3 flat fan nozzles (110015)/row. The plot was sprayed 4 times between Aug 2 and Aug 30. Adult leafnoppers were counted at 2 and 6 days after spraying, using a hand sweep net (50 sweeps/treatment).

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