Cotton Boll Weevil An Evaluation of USDA Programs : a Report (1981) / Chapter Skim
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DESCRIPTION OF THE OPM AND BWE TRIALS AND OPTIONS FOR FUTURE PEST MANAGEMENT
DESCRIPTION OF THE OPM AND BWE TRIALS AND OPTIONS FOR FUTURE PEST MANAGEMENT
Pages 52-57
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From page 52... ...
The trial was carried out over a three year period on over 30,000 acres of cotton in Panola County in northwestern Mississippi. The major components of the OPM trial were these: • the use of traps baited with the pheromone grandlure to monitor the size and extent of the boll weevil population; • urging cotton growers to plant cotton within certain recommended dates; • providing recommendations to growers on when to apply pinhead square applications of insecticides, as determined by scouting of the cotton fields for boll weevils and other pests by commercial consultants, employees of grower associations, and extension service employees; • full reimbursement of the costs incurred by growers who carried out the pinhead square applications of insecticides; 52
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From page 53... ...
The cotton acreage involved in the trial increased from about l5,500 acres in l978 to 32,500 acres in l980. An evaluation zone was established in the test area, extensive monitoring to determine the size and extent of the boll weevil population was carried out with pheromone traps, and a buffer zone surrounded the trial area.
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From page 54... ...
Approval for the trial in Virginia was obtained through a public hearing. The major components of the BWE trial carried out by APHIS were: • the use of pheromone-baited traps located around every cotton field, • in-season cotton pest control, • diapause control following termination of cotton crop, • defoliation or desiccation of all cotton to hasten harvest operations or to reduce the boll weevil food and breeding sites, • sterile boll weevils distributed over entire cotton crop, and • four foliar sprays of diflubenzuron in selected areas.
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From page 55... ...
. CIC includes all of the various practices discussed in Chapter 2 -- insecticides, use of short-season varieties, use of cotton plants with natural host plant resistance to various insect pests, trap cropping, and so on -- as they are used by individual cotton growers.
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From page 56... ...
Second year: APHIS would be responsible for all insecticide treatments intended to eradicate the boll weevil, and the distribution of sterile male boll weevils over all lands planted in cotton; cotton growers themselves would be responsible for controlling all cotton insect pests other than the boll weevil, as well as for destroying cotton plant stalks after harvesting; growers would be urged to follow recommendations of cooperative extension services on dealing with other cotton insect pests. Third year: APHIS would be responsible for monitoring and controlling incipient boll weevil infestations; cotton growers would again be urged to carry out measures against other cotton insect pests as recommended by state agricultural extension services.
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From page 57... ...
Traps would be installed in the spring for three months around cotton fields of the previous season and in the fall for three months around current cotton fields. During the monitoring period the trap densities would be: • First year: one per l0 acres • Second year: one per 50 acres • Third year: one per 200 acres If boll weevils were captured at any time during this period, trap density would be increased to one per acre in a zone of one to two miles around the detection point or area.
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