Command is a registered herbicide for use in soybeans for controlling a wide spectrum of grasses and broadleaf weeds. It was anticipated that with an in-furrow application of Thimet Command would provide Louisiana cotton producers with a comparable spectrum of activity and crop safety.

In 1990 field studies were conducted at the Dean Lee Research Station at Alexandria and at the Northeast Research Station at St. Joseph. 'Deltapine 50' was planted April 25 at Alexandria on a silt loam soil with a pH of 7.9 and organic matter content of 1.23%. At St. Joseph 'Deltapine 201 was planted one month later (May 25) on a silt loam soil with a pH of 5.1 and organic matter content of 0.9%.At both locations treatments were arranged in a randomized complete block design with four replications.

The four-week evaluation at Alexandria indicated Command at 1.5 and 2.0 pts/acre controlled 95% wild poinsettia and seedling johnsongrass., Pitted morningglory control was 90% at the 2 pt rate. Hophornbeam copperleaf control was 70%. Poor control of smell melon in the form of early-season foliar whitening and stunting, was approximately 15% at eight weeks. There were no significant differences in yields.

At. St. Joseph Command at 2.0 pts controlled above 95% seedling johnsongrass, redroot pigweed, hemp sesbania, and a mixed population of pitted and entireleaf morningglory. Command at 2 pts caused 25% cotton injury when rated four weeks after planting but at harvest no significant yield differences were seen.