Fall armyworms and corn borers have long been a concern for Louisiana corn growers. While farmers in the U.S. have planted transgenic Bt corn varieties since the 1990s to biologically control pests, staying ahead of their ability to develop resistance is a constant battle.
For the past few years, the problem with Bt corn and resistance to western corn rootworms has remained primarily a Midwestern problem. However, suspected resistance has showed up in Pennsylvania.
Spurred by late spring and early summer rainfall, farmers’ row crops across much of Kansas are thriving. And so are the weeds they’re trying to control, including Palmer amaranth, an aggressive and invasive weed that used to be controlled by the popular herbicide glyphosate.
Controlling large weeds: Do you feel lucky? (07/17/14)
Screening waterhemp for herbicide resistance (06/26/14)
Update on herbicide resistance in waterhemp (05/11/12)
Soil an overlooked resource (04/18/11)
Afternoon Comments 09/22
Prospects for fine harvest weather weighed on corn and soybeans Monday. Little news concerning the crop markets emerged over the weekend, thereby seeming to open the door to fresh selling based upon expectations for huge US harvests. Forecasts for warm, dry weather through late September, thereby likely favoring a strong harvest, probably exaggerated corn sales. The strong Export Inspections result seemingly did little to support the market. December corn futures closed 1.25 cents lower at $3.3025/bushel Monday, while May slid 1.75 to $3.5125.