TITLE:
SUMMARY OF THE TEXAS BOLL WEEVIL ERADICATION INSECTICIDE APPLICATIONS ON THE AG-CARES FARMS FOR CROP YEAR 2000
Author:
Tommy Doederlein, Extension Agent – IPM, Dawson and Lynn Counties
Summary: Crop year 2000 was the first year of a full season eradication program. The irrigated acres had a complete or partial application eleven times starting on July 14 and ending October 10, while the dryland corners received 10 applications. The dryland far received an application on eight dates starting July 18 and ending October 18. The new “10 acre” dryland farm received a single application on September 13.
Materials and Methods: Boll weevil eradication insecticide applications were applied to the various farms of the AG-CARES complex by air, high cycle and mist blower. The first applications started on July 14 with the last applications occurring on October 18. The material used in the eradication program is Fyfanon ULV (malathion). The rate per acre used when applied by air is 12 ounces while 16 ounces are used when applied by high cycle or mist blower.
Results and Discussion: The AG-CARES farm layout with foundation field numbers is presented in figure 1. The insecticide application report for the AG-CARES complex is presented in tables 1 through 4.
Acknowledgments: Thanks to Misty Davis, Field Unit Supervisor, Texas Boll Weevil Eradication Foundation Inc. for supplying the information.
Figure. 1 Farm layout and number for the AG-CARES farms.
Table 1. Texas Boll Weevil Eradication Foundation insecticide application summary for the
AG-CARES farm – pivot irrigated acres. Lamesa, Texas, 2000.
| Pivot 1/ | |||
| Date | Method | Oz. / Acre | Acres Sprayed 2/ |
| 07-14-00 | Air | 12.00 | 100.4 |
| 07-18-00 | High Cycle | 16.00 | 100.4 |
| 07-21-00 | Air | 12.00 | 100.4 |
| 07-28-00 | Air | 12.00 | 100.4 |
| Mist Blower | 16.00 | 9.8 | |
| 08-21-00 | Air | 12.00 | 68.2 |
| 08-25-00 | Air | 12.00 | 86.7 |
| 09-01-00 | Air | 12.00 | 100.4 |
| 09-13-00 | Air | 12.00 | 86.7 |
| 09-21-00 | Air | 12.00 | 13.70 |
| Mist Blower | 16.00 | 1.8 | |
| 10-02-00 | Air | 12.00 | 73.8 |
| Mist Blower | 16.00 | 3.0 | |
| 10-10-00 | Mist Blower | 16.00 | 1.2 |
1/ Combination of field numbers 805041017, 805041018, 805041019, 805041020 and 805041022
2/ Total number of acres – 100.4
Table 2. Texas Boll Weevil Eradication Foundation insecticide application summary for the
AG-CARES farm – dryland corners acres. Lamesa, Texas, 2000.
| Dryland Corners 1/ | |||
| Date | Method | Oz. / Acre | Acres Sprayed 2/ |
| 07-14-00 | Air | 12.00 | 27.5 |
| 07-18-00 | High Cycle | 16.00 | 27.5 |
| 07-21-00 | Air | 12.00 | 27.5 |
| 07-28-00 | Air | 12.00 | 27.5 |
| Mist Blower | 16.00 | 0.6 | |
| 08-10-00 | Air | 12.00 | 27.5 |
| 08-25-00 | Air | 12.00 | 27.5 |
| 08-31-00 | High Cycle | 16.00 | 27.5 |
| 09-13-00 | Air | 12.00 | 27.5 |
| 09-21-00 | Air | 12.00 | 27.5 |
| 10-02-00 | Air | 12.00 | 27.5 |
1/ Field number 805041023
2/ Total acres – 27.5
Table 3. Texas Boll Weevil Eradication Foundation insecticide application summary for the
AG-CARES farm – dryland farm acres. Lamesa, Texas, 2000.
| Dryland Farm 1/ | |||
| Date | Method | Oz. / Acre | Acres Sprayed 2/ |
| 07-18-00 | High Cycle | 16.00 | 38.6 |
| Mist Blower | 16.00 | 0.5 | |
| 07-21-00 | Air | 12.00 | 38.6 |
| 09-05-00 | Mist Blower | 16.00 | 5.4 |
| 09-15-00 | High Cycle | 16.00 | 43.7 |
| 09-19-00 | High Cycle | 16.00 | 18.3 |
| 09-26-00 | High Cycle | 16.00 | 38.6 |
| 10-13-00 | High Cycle | 16.00 | 5.1 |
| 10-18-00 | High Cycle | 16.00 | 51.8 |
| 10-18-00 | Mist Blower | 16.00 | 6.0 |
1/ Combination of field numbers 805041004, 805041503 and 805041504
2/ Total acres – 56.9
Table 4. Texas Boll Weevil Eradication Foundation insecticide application summary for the
AG-CARES farm – “10 acre” dryland farm. Lamesa, Texas, 2000.
| 10 Acre Dryland Farm 1/ | |||
| Date | Method | Oz. / Acre | Acres Sprayed 2/ |
| 09-13-00 | Air | 12.00 | 9.6 |
1/ Field number 805041025
2/ Total acres – 9.6
