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By Stephen Barnhart, Department of Agronomy
There have been reports of localized areas of winterkill and winter injury to forage and winter cereal grain crops this past winter in Iowa.
The reports indicate damage on sites across the state, but the most extensive areas are in northeast Iowa. There are reports of damage to alfalfa, orchardgrass, perennial ryegrass, winter wheat and winter triticale.
By Doug Cooper, Extension Communications and External Relations
On April 27, Doug Cooper, Extension communications specialist, interviewed Iowa State University Extension climatologist Elwynn Taylor, integrated pest management specialist Rich Pope and corn agronomist Roger Elmore for the weekly crops and weather update.
Interest in corn nematodes is increasing with recent changes in corn production. Greg Tylka, extension plant pathologist, shares a few facts about the plant-parasitic nematodes.
Hartzler outlines the restrictions associated applying 2,4=D to crop land.
Current soil temperatures, important to germination and the fate of nitrogen, are tracked on an ISU Extension website.
A few precautions during spring field work can reap rewards throughout the growing season.
By Doug Cooper, Extension Communications and External Relations
Doug Cooper's April 20 crop and weather report guests this week are Extension climatologist Elwynn Taylor, integrated pest management specialist Rich Pope and soybean agronomist Palle Pedersen.
Taylor talks of La Niña's continued comeback having reached the SOI category, considered a significant weather phenomenon. Planting weather looks good for Iowa the next couple of weeks, but the Eastern Corn Belt may not be as fortunate.
Corn flea beetles must survive Iowa's cold winter months in order to spread bacterium that causes Stewart's disease of corn. Learn what the chances are that they survived.
On April 13, Doug Cooper , Extension communications specialist, interviewed Iowa State University Extension climatologist Elwynn Taylor, integrated pest management specialist Rich Pope and corn agronomist Roger Elmore for the weekly crops and weather update.
Extension climatologist Elwynn Taylor tells Cooper that La Niña appears to be making a comeback, maybe. The Southern Oscillation Index (SOI) has gained back some of its strength the past week or so.
Rich Pope says winter annual weeds need to be scouted in some parts of the state.
By Jon Tollefson, Department of Entomology
