Heavy pressure from reproducing weevils may not be adequately controlled by the three 5-day interval sprays made by the program. However, the program should do the job if good weevil control has been maintained prior to its start. If a weevil spray schedule needs to start before the first eradication spray, do not wait. Our survey estimates there are about 79,000 acres of Bt cotton remaining in the NE Mississippi area. Boll weevils are still of concern in some fields.
Overwintered weevils continue to emerge in numbers high enough to warrant spraying.
Some fields are also due to have a first field generation of weevils begin to emerge this week. DO NOT WAIT on the program, spray emerging weevils before they eliminate squares which will bloom prior to August 15. We are beginning to see webworms, and other unorthodox pests in some fields. Be on the lookout for different kinds of pests. A field was sprayed for yellowstriped armyworms this week.