Virginia:
Cotton on Cruise Control
By Johnny Parker, Agronomist
Commonwealth Gin, Windsor, Virginia
August 18, 2008 -
The cotton crop is now moving in towards the calm part of the
growing season. Generally insects have been addressed and overall,
we have maintained a medium amount of bollworm pressure and low
stinkbug numbers.

All of the Widestrike and Bollguard II varieties should be safe from
worms and should mainly be checked for stinkbug damage and stinkbugs
especially if it has not been treated in August. The Bollguard I
varieties are primarily only susceptible to worms through the bloom
tags. If you have any non Bt cotton that is still blooming heavily,
then it should be monitored for another 10 days or so for worm
infestations due to the relatively strong moth flight that
continues.
Typically the cotton is pretty safe for a good
two to three weeks following the second spray and should primarily
be checked for actual live worms getting established rather than
eggs during the second half of August.
The
chance of rain improves towards the end of the week with a fairly
good chance of rain developing by the weekend. Overall the cotton
appears better than average. Some fields look outstanding.