Add to ORKGLast week, we were asked when a grower should be concerned about adult corn rootworms feeding on the silks of their corn. The importance of beetle feeding on corn silks is variable and there is not a definitive treatment threshold. The variability is the result of the environmental conditions and the maturity of the corn in relation to surrounding fields. During the 1970s, Purdue University conducted a study to try to identify a treatment threshold for adult rootworm feeding. The resulting threshold was 5 to 15 adult rootworms per plant
Many farmers throughout the Midwest are applying soil insecticides for rootworm control at a rate be...
There is considerable interest across Iowa and the whole Corn Belt in applying fungicides to field c...
Several Iowa long-term experiments are studying rotation and N fertilization effects on corn yield (...
Adult northern corn rootworms have been extremely abundant in soybeans this August (see image of bee...
During the summer of 2005, adult northern corn rootworms were abundant throughout Iowa. They were co...
There are variants of both corn rootworm species in Iowa that are resistant to crop rotation. The no...
It is happening again. Several insecticide companies are promoting the application at planting of th...
Corn growers are increasingly adopting the corn biotech traits in YieldGard®, Herculex®, and Agrisur...
The current demand for corn has generated a great deal of discussion this past winter of corn yields...
Based on research and in-field experience, we are confident yields are reduced when corn follows cor...
Increasing demand for corn grain to meet ethanol production in Iowa has spurred interest in growing ...
Corn yield potential is an important topic for discussion--driven by the imminent need to either gro...
When shifting from a corn-soybean rotation to growing corn after corn, there are several equipment c...
Corn producers in eastern Iowa should expect to see changes in corn rootworm behavior. The variant o...
Despite the importance of glyphosate-based crop systems, there is a need for continued understanding...
Many farmers throughout the Midwest are applying soil insecticides for rootworm control at a rate be...
There is considerable interest across Iowa and the whole Corn Belt in applying fungicides to field c...
Several Iowa long-term experiments are studying rotation and N fertilization effects on corn yield (...
Adult northern corn rootworms have been extremely abundant in soybeans this August (see image of bee...
During the summer of 2005, adult northern corn rootworms were abundant throughout Iowa. They were co...
There are variants of both corn rootworm species in Iowa that are resistant to crop rotation. The no...
It is happening again. Several insecticide companies are promoting the application at planting of th...
Corn growers are increasingly adopting the corn biotech traits in YieldGard®, Herculex®, and Agrisur...
The current demand for corn has generated a great deal of discussion this past winter of corn yields...
Based on research and in-field experience, we are confident yields are reduced when corn follows cor...
Increasing demand for corn grain to meet ethanol production in Iowa has spurred interest in growing ...
Corn yield potential is an important topic for discussion--driven by the imminent need to either gro...
When shifting from a corn-soybean rotation to growing corn after corn, there are several equipment c...
Corn producers in eastern Iowa should expect to see changes in corn rootworm behavior. The variant o...
Despite the importance of glyphosate-based crop systems, there is a need for continued understanding...
Many farmers throughout the Midwest are applying soil insecticides for rootworm control at a rate be...
There is considerable interest across Iowa and the whole Corn Belt in applying fungicides to field c...
Several Iowa long-term experiments are studying rotation and N fertilization effects on corn yield (...