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Node-injury scale to evaluate root injury by corn rootworms (Coleoptera: Chrysomelidae).
The node-injury scale is developed to more accurately quantify corn rootworm larval injury based on the proportion of nodal roots that contain feeding injury, and the minimum node-Injury score that causes economic damage under varying degrees of environmental stress is suggested. Expand
Optimization of Soil Insecticide Rates for Managing Corn Rootworm (Coleoptera: Chrysomelidae) Larvae in the North Central United States
Less-than-labeled rates of these insecticides applied in an 18-cm band can be used to manage rootworm larvae effectively with as much consistency as full (1X) rates. Expand
Node-Injury Scale to Evaluate Root Injury by Corn Rootworms (Coleoptera: Chrysomelidae)
Abstract Corn rootworm larval feeding on corn roots can significantly reduce grain yield by interfering with photosynthetic rates, limiting the uptake of water and nutrients, and by increasing theExpand
Three-year summary of corn rootworm control products
During the past three summers, corn rootworm insecticides and YieldGard Rootworm® corn were evaluated in side-by-side trials at several locations across the state. These field trials measuredExpand
Corn Rootworm Insecticide Performance
Three newly registered products, Cruiser and Poncho seed treatments (at the rootworm rate) and YieldGard Rootworm seed (transgenic seed containing a Bt protein), are included in the tests. Expand
Products Evaluated for Corn Rootworm Management
Materials and Methods 2005 Sutherland test. Plots were planted on May 6 in an area that had been a corn rootworm beetle “catch crop,” with high populations of late-planted corn the previous year. TheExpand
Reduced Rates of Corn Rootworm Insecticides
Full-labeled rates of commercially available corn rootworm insecticides are evaluated yearly for their ability to protect corn root systems from corn rootworm feeding injury. Less-than-labeled, orExpand