ScholarLens Back to search
1993•Arthropod management testsOpen access

Control of Aphids in Cotton, 1990

Donald R. Johnson, Glenn Studebaker

Open full text 0 citations

Abstract

Abstract Treatments were applied on 2 and 8 Aug to ‘DES 119’ cotton in Lonoke County, AR using a Spirit high clearance sprayer equipped with a CO2 powered system for spraying small plots. The sprayer was calibrated to deliver 13 gal/acre at 50 psi through TX-6 hollowcone nozzles on a 19-inch spacing. Plots were 2, 38-inch rows, 50 ft long arranged in a randomized complete block design with 4 replications. Evaluations were made 4 DAT using a hand-lens to count the number of aphids on a total of 3.6-inches2 of leaf area on the upper portion of the cotton plants in the center 2 rows in each plot.

About this research paper

What this paper is about

Abstract Treatments were applied on 2 and 8 Aug to ‘DES 119’ cotton in Lonoke County, AR using a Spirit high clearance sprayer equipped with a CO2 powered system for spraying small plots. The sprayer was calibrated to deliver 13 gal/acre at 50 psi through TX-6 hollowcone nozzles on a 19-inch spacing. Plots were 2, 38-inch rows, 50 ft long arranged in a randomized complete block design with 4 replications. Evaluations were made 4 DAT using a hand-lens to count the number of aphids on a total of 3.6-inches2 of leaf area on the upper portion of the cotton plants in the center 2 rows in each plot.

Why it matters

A significance statement is not available in the OpenAlex record.

Key contribution

A contribution statement is not available in the OpenAlex record.

Method / approach

Method details are not available in the OpenAlex metadata.

Main findings

Findings are not separately available in the OpenAlex metadata.

Limitations

Limitations are not available in the OpenAlex metadata.

Applications

Application details are not available in the OpenAlex metadata.

Available abstract

Abstract Treatments were applied on 2 and 8 Aug to ‘DES 119’ cotton in Lonoke County, AR using a Spirit high clearance sprayer equipped with a CO2 powered system for spraying small plots. The sprayer was calibrated to deliver 13 gal/acre at 50 psi through TX-6 hollowcone nozzles on a 19-inch spacing. Plots were 2, 38-inch rows, 50 ft long arranged in a randomized complete block design with 4 replications. Evaluations were made 4 DAT using a hand-lens to count the number of aphids on a total of 3.6-inches2 of leaf area on the upper portion of the cotton plants in the center 2 rows in each plot.

Key concepts: Sprayer, Acre, Randomized block design, Row, Mathematics, Block (permutation group theory), Horticulture, Agronomy

Related papers

Related paper 1Related paper 2Related paper 3
Back to paper searchBrowse research topicsOriginal source
Control of Aphids in Cotton, 1990 — Research Paper | ScholarLens