CUIPM Home
About CUIPM
What's New!
What Is IPM?
Managing Pests
IPM & Schools
Funding Opportunities
Other IPM Resources |
|
2000 - 2001 CUIPM Grants -
Final Reports
Field Demonstration of Insect Spray Thresholds for Bollgard II Cotton in the Savannah Valley
Tommy Walker
Area Cotton Agent
Jasper County
Mike Sullivan
Professor of Entomology
Clemson University
S.G. Turnipseed
Professor of Entomology
Clemson University
This IPM project compared pest populations on three different cotton genotypes: conventional (non Bt), Bollgard I (one Bt gene), and Bollgard II (two Bt genes). Bollgard I has been commercially available for several years; Bollgard II should be available in 2003. Replicated studies were set up in four locations, one in each of the following counties - Barnwell, Bamberg, Hampton, and Jasper. Three of these were located on grower farms with one at the Edisto REC; three were irrigated and one was dryland.
The main objective was to determine the number of insecticide applications necessary to control insect pests on the three genotypes. These plots were scouted weekly and applications were made to each respective genotype as necessary. Yields were determined by picking plots with a two-row cotton picker.
With cotton bollworm, our major lepidopterous pest, conventional cotton received the most applications (2-4), followed by Bollgard I (0-1) and Bollgard II with none. Bollgard II plots were treated 1 time for piercing/sucking bugs, primarily stink bugs. Differences in yields were not found among the three genotypes when each was treated according to established thresholds.
All funds were expended on summer labor hired to take weekly insect counts in the four locations.
| Total Funds |
$5,000.00 |
|
|
| Temporary |
$4,160.00 |
|
| Fringe |
$624.00 |
|
| Travel |
$216.00 |
|
|
Questions or comments:
Amy Nichols
Associate Coordinator
IPM and
Sustainable Agriculture
Programs
Contact
Dr. Geoffrey Zehnder
Professor of Entomology, Soils & Plant Sciences
IPM and
Sustainable Agriculture
Programs
114 Long Hall, Box 340315
Clemson, SC 29634-0315
864 - 656 - 6644
Contact
Last revised:
8/4/2006 |
Clemson University Cooperative Extension Service offers its programs to people of all ages, regardless of race, color, sex, religion, national origin, disability, political beliefs, sexual orientation, marital or family status and is an equal opportunity employer. |
|
