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United States Department of Agriculture

Agricultural Research Service

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Research Project: Baseline Susceptibility of Tarnished Plant Bug to the Insect Growth Regulator, Novaluron

Location: Southern Insect Management Research

2013 Annual Report

1a. Objectives (from AD-416):
Objective 1: To establish a baseline for susceptibility of tarnished plant bug populations in the Mississippi Delta to novaluron. Objective 2: To monitor tarnished plant bug populations over a three-year period for potential shifts in susceptibility due to increased exposure in cotton and other crops.

1b. Approach (from AD-416):
Baseline susceptibility to novaluron will be determined using glass-vial bioassays with tarnished plant bug adults collected from weed hosts found near cotton fields at 10-20 locations in the Mississippi Delta. Tarnished plant bug populations will continue to be monitored for a three-year period for potential shifts in susceptibility caused by increased exposure to novaluron.

3. Progress Report:
In 2012, nine populations of tarnished plant bugs from Mississippi and Arkansas were screened against novaluron in a glass vial dose-mortality bioassay. While laboratory responses were variable, no differences were observed among the ten populations, and none differed from the check (a population from Crossett, AR, in a non-agricultural area). Project has terminated due the departure of the ARS investigator.

4. Accomplishments

Last Modified: 2/23/2016
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