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EFFICACY OF SELECTED COMPOUNDS FOR CONTROL OF TARNISHED PLANT BUGS (LYGUS LINEOLARIS) IN PHILLIPS COUNTY, ARKANSAS COTTON

Extension Education

Robert Goodson
CEA- AGRICULTURE
Univ of Ark. Division of Agriculture
HELENA

Abstract

Due to the acceptance of Bt Technology in cotton production in Phillips County, the tarnished plant bug (TPB) (Lygus Lineolaris) has replaced the heliothis pest as the number one pest in the cotton crop. The TPB has become the predominant plant bug species in Arkansas and is considered an economical pest of cotton (Lorenz 2000). TPB feed by inserting their long needle-like mouthparts into tender terminals, squares and other tissues causing injured squares to turn dark and drop off, while damaged bolls may develop abnormally. The objective of these studies was to evaluate the efficacy of insecticides for the control of tarnished plant bugs in Arkansas cotton. A result demonstration for the control of TPB was conducted on the Pace Hinsley farm, near Marvell Arkansas in Southeast Phillip County during the summer of 2009. The demonstration was replicated four times in the field. Insect sampling was conducted by taking 2 drop cloth samples per plot with a standard 2.5 ft. black drop cloth (5 row ft. total per plot). Data from the demonstration was collected on 4 (4DAT) and 12 days (12DAT) after application. Without the addition of Bidrin (4 oz ai/a) Coragen (0.088 lb ai/ac) and Belt (3 oz ai/a) alone, exhibited less control at 4DAT. However, they were still significantly better than the untreated check. And at 12DAT only the Coragen alone exhibited less control than the other products. All products were exhibited significant better control than the untreated check at both 4 and 12 DAT

Poster has NOT been presented at any previous NACAA AM/PIC

This poster is being submitted for judging. It will be displayed at the AM/PIC if not selected as a State winner. The abstract will be published in the proceedings.

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Authors: R. Goodson, G. M. Lorenz III, K. Colwell, N. Taillon, B. Von Kanel, H. Wilf
  1. Goodson, R. County Extension Agent - Agriculture, University of Arkansas, Division of Agriculture, Arkansas, 72342
  2. Lorenz III, G. Extension Entomologist Department Head, University of Arkansas, Division of Agriculture, Arkansas, 72086
  3. Colwell, K. Program Associate - Entomology, University of Arkansas, Division of Agriculture, Arkansas, 72086
  4. Taillon, N. Program Technician - Entomology, University of Arkansas, Division of Agriculture, Arkansas, 72086
  5. Von Kanel, B. Program Technician - Entomology, University of Arkansas, Division of Agriculture, Arkansas, 72086
  6. Wilf, H. Program Associate - Entomology, University of Arkansas, Division of Agriculture, Arkansas, 72086