Cotton farmers can rest assure a remedy for pigweed, one of their biggest nemesis, has been developed and found to be very effective in Phillips County.

 

Cotton farmers can rest assure a remedy for pigweed, one of their biggest nemesis, has been developed and found to be very effective in Phillips County.
   “LibertyLink cotton is doing the job,” Robert Goodson, Phillips County Extension agent, said last week as he checked on Trey Jackson’s 180-acre field of cotton involved in the latest technology near Poplar Grove.
LibertyLink cotton varieties marketed by FiberMax have shown a genetically based resistance to Ignite herbicide.
Goodson said this was the first year LibertyLink cotton is being grown in Phillips County and only at the one site.
“Ignite can be applied over-the-top of cotton up to 70 days prior to harvest,” Goodson said.
 According to regulations by Bayer Crop Science, the manufacturer, post emergence applications of Ignite can be made up to the early bloom period. The use rate is 32 to 40 ounces per acre and not to exceed 80 ounces per season.
Goodson expressed his personal satisfaction with the development of Ignite in light of the many seasons he has watched Palmer Pigweed permeate cotton fields.
  Goodson said the advent of Ignite arrived at an opportune time in cotton farming since Roundup was no longer effective.
“Pigweed developed a resistance to Roundup,” Goodson said. “Roundup worked well for 15 years but not anymore.”
Checking on the development of Jackson’s cotton crop Goodson said many of the plants were beginning to show tiny bolls.
“Look at the nodes,” Goodson said. “If there are at least four nodes on a plant it will have to fruit well.”
Jackson’s cotton was planted in 38-inch rows with chemicals applied with a ground rig.
“The plants should be reach my waist,” a height of four feet, Goodson said. “You don’t want the plants to get too tall.”
Goodson said small orange flags were planted along U.S. Highway 49 just south of the Jackson cotton to indicate that Roundup not be applied to the field.