Corn rootworm is a persistent and economically important pest in Iowa, with yield loss caused primarily by larval feeding on corn roots. Genetically modified corn with Bt traits kills western and northern rootworm larvae, and Bt-rootworm corn has been available since 2003. However, some Iowa farmers have observed severe root injury to Bt hybrids in continuous cornfields, and there has been documented resistance of western corn rootworm in Iowa to Cry3Bb1 corn and mCry3A corn since 2009 and 2011, respectively
It’s time to plant small grains. When planting oats, spring wheat, and barley, farmers typically pla...
It is that time of year when your corn rootworm management strategy should be examined. We are curre...
Last week, there were some reports of uncommon crop insect pests active in Iowa. Black cutworm larva...
Two integrated pest management strategies are used widely to protect corn roots from corn rootworm i...
Northern corn rootworm larvae occasionally damage fields of first-year corn in Iowa. Rootworms typic...
Black cutworm is a pest of corn in Iowa, occasionally causing economic loss. Cooperators around Iowa...
Labeled rates of corn rootworm insecticides were evaluated across Iowa during the past three years i...
Field specialists and crop advisors in southern and western Iowa report the development of potential...
Insect damage that occurs below the soil surface is difficult to predict. It is equally difficult to...
The wet spring and variable growing conditions this year have resulted in many uneven corn stands. T...
Seedling corn is attacked each spring by a variety of caterpillars. Identification is the first step...
Stalk borers are notorious for killing or stunting the corn row next to fences, grassy waterways, an...
The western bean cutworm is a mid-season pest of field corn that is rarely see in Iowa. In 2000, som...
Last week, we were asked when a grower should be concerned about adult corn rootworms feeding on the...
Precision farming trials last year confirmed the old idea that manure can be a valuable source of ni...
It’s time to plant small grains. When planting oats, spring wheat, and barley, farmers typically pla...
It is that time of year when your corn rootworm management strategy should be examined. We are curre...
Last week, there were some reports of uncommon crop insect pests active in Iowa. Black cutworm larva...
Two integrated pest management strategies are used widely to protect corn roots from corn rootworm i...
Northern corn rootworm larvae occasionally damage fields of first-year corn in Iowa. Rootworms typic...
Black cutworm is a pest of corn in Iowa, occasionally causing economic loss. Cooperators around Iowa...
Labeled rates of corn rootworm insecticides were evaluated across Iowa during the past three years i...
Field specialists and crop advisors in southern and western Iowa report the development of potential...
Insect damage that occurs below the soil surface is difficult to predict. It is equally difficult to...
The wet spring and variable growing conditions this year have resulted in many uneven corn stands. T...
Seedling corn is attacked each spring by a variety of caterpillars. Identification is the first step...
Stalk borers are notorious for killing or stunting the corn row next to fences, grassy waterways, an...
The western bean cutworm is a mid-season pest of field corn that is rarely see in Iowa. In 2000, som...
Last week, we were asked when a grower should be concerned about adult corn rootworms feeding on the...
Precision farming trials last year confirmed the old idea that manure can be a valuable source of ni...
It’s time to plant small grains. When planting oats, spring wheat, and barley, farmers typically pla...
It is that time of year when your corn rootworm management strategy should be examined. We are curre...
Last week, there were some reports of uncommon crop insect pests active in Iowa. Black cutworm larva...