palmer pigweed

• By Charlie Cahoon Jr. • According to the most recent Cotton Planting Conditions Forecast, planting conditions should improve by next Wednesday, May 13, 2020. For those itching to start earlier in the week, I hope you consider how marginal planting conditions can influence cotton response to preemergence herbicides. Cool, wet conditions can influence cotton tolerance to all residual herbicides. ... Read More »

Just hearing “pigweed” can cause fear in cotton and soybean farmers, but a Clemson University geneticist and others believe they have discovered the armor this dreaded weed uses to protect itself against the herbicide glyphosate. The researchers have determined a specific genetic feature, the extrachromosomal circular DNA (eccDNA) replicon, gives Palmer pigweed, or Palmer amaranth, its resistance to glyphosate and ... Read More »

• By Amanda Huber, Southeast Editor • The reasons to aggressively battle glyphosate-resistant Palmer amaranth (pigweed) are well known. This pest will outcompete any crop, and if left uncontrolled, can take over entire fields. But even with 20 years of research into this formidable foe, new evidence suggests yet another reason: a link between Palmer pigweed and tarnished plant bugs. ... Read More »

• By Vicky Boyd, Managing Editor • BASF recently launched an industrywide initiative – “Operation Weed Eradication” – that challenges growers and others within agriculture to take a zero-tolerance approach to ridding fields of devastating weeds. “As an industry, we’ve talked about managing weeds. We need to switch that up to eradicating those weeds in the field,” Scott Kay, vice ... Read More »

• By Stanley Culpepper • Dry conditions across the region are influencing both weed control and cotton injury. Weed Control: Most weeds, especially Palmer amaranth, become more tolerant to topically applied herbicides under dry conditions. A thicker wax layer on the leaf (stem) surface, dust on the leaf surface, and leaf closure or stem rolling can reduce herbicide uptake and ... Read More »

May 25 marks the last day for Arkansas growers to apply the herbicide dicamba to crops in the state, based on a ruling from the Arkansas State Plant Board earlier this year. The herbicide is primarily used to control Palmer amaranth, commonly known as pigweed, in soybeans and cotton that have been genetically modified to tolerate the chemicals. Although various ... Read More »

Planting decisions for the 2019 season are taking shape. Cash margins for all commodities are tight and provide little room for mistakes. We must be smart to get the most out of our inputs. We need to watch our costs yet provide the necessary inputs to protect yield potential. Variety selection for yield and quality is an important first step ... Read More »