Add to ORKGAdult northern corn rootworms have been extremely abundant in soybeans this August (see image of beetles on corn silk, below). Beetle populations in soybeans at the extension field lab in Boone County averaged 45 per 20 sweeps; however, Brad Buchanan, crop consultant in Cedar Rapids, reports 50--150 per 20 sweeps in some eastern Iowa fields. Their abundance has prompted many questions regarding what they are doing in soybeans and if they will present a threat to rotated corn next year. Here are several of the questions we have encountered, and our responses to those questions
Corn producers battle a variety of soil-dwelling insect pests. Seedcorn maggots, wireworms, white gr...
Recently, we have received questions on soybean rust from many Iowa soybean producers and agronomist...
Plant-parasitic nematodes can damage corn, and several instances of this are discovered each year in...
An unfortunate hailstorm harvested a large number of soybean fields in a swath across northwestern...
During the summer of 2005, adult northern corn rootworms were abundant throughout Iowa. They were co...
The continued shortage of rainfall has increased the impact of weather on both yield and quality for...
Despite the importance of glyphosate-based crop systems, there is a need for continued understanding...
Many areas of Iowa have had below normal rainfall throughout much of June, and most of July and Augu...
The genetic yield potential of soybeans in the Midwestern United States is estimated to be approxima...
Several Iowa long-term experiments are studying rotation and N fertilization effects on corn yield (...
The western bean cutworm is a mid-season pest of field corn that was rarely seen in Iowa before 2000...
New soybean seed inoculants have been introduced in the market over the last year. However, there is...
Last week we reported that small populations of soybean aphids were being found in Minnesota and Wis...
The 2005 growing season left many growers with very different experiences managing insect pests in s...
Twospotted spider mites are serious pests whenever hot, dry weather persists. Large spider mite popu...
Corn producers battle a variety of soil-dwelling insect pests. Seedcorn maggots, wireworms, white gr...
Recently, we have received questions on soybean rust from many Iowa soybean producers and agronomist...
Plant-parasitic nematodes can damage corn, and several instances of this are discovered each year in...
An unfortunate hailstorm harvested a large number of soybean fields in a swath across northwestern...
During the summer of 2005, adult northern corn rootworms were abundant throughout Iowa. They were co...
The continued shortage of rainfall has increased the impact of weather on both yield and quality for...
Despite the importance of glyphosate-based crop systems, there is a need for continued understanding...
Many areas of Iowa have had below normal rainfall throughout much of June, and most of July and Augu...
The genetic yield potential of soybeans in the Midwestern United States is estimated to be approxima...
Several Iowa long-term experiments are studying rotation and N fertilization effects on corn yield (...
The western bean cutworm is a mid-season pest of field corn that was rarely seen in Iowa before 2000...
New soybean seed inoculants have been introduced in the market over the last year. However, there is...
Last week we reported that small populations of soybean aphids were being found in Minnesota and Wis...
The 2005 growing season left many growers with very different experiences managing insect pests in s...
Twospotted spider mites are serious pests whenever hot, dry weather persists. Large spider mite popu...
Corn producers battle a variety of soil-dwelling insect pests. Seedcorn maggots, wireworms, white gr...
Recently, we have received questions on soybean rust from many Iowa soybean producers and agronomist...
Plant-parasitic nematodes can damage corn, and several instances of this are discovered each year in...