Crops Forages Weeds Others corn pearl millet morning glory bentgrass sorghum fescue crabgrass tomato soybean white clover johnsongrass potato wheat crimson clover sorrel peppers oats ladino clover wild carrot peach barley Kobe Iespedeza ragweed elm rye cocklebur pecan peanuts Bermuda grass strawberry Field symptoms usually consist of severe stunting, wilting, yellowing, and sometimes death. Other field problems can mimic sting nematode symptoms. While both of these nematodes will cause root pruning, neither produces the root lesions characteristic of the sting nematode. During the remainder of the growing season, nematode populations decline steadily and may not be easily detected by harvest. Therefore, the optimum time to sample for this nematode is when damage is first noticed on seedling crops.
Any number is a potential threat to crop production.
Complete guidelines for collecting soil samples for nematode assay are available at local Cooperative Extension Service offices. Control Crop rotation has some potential for reducing sting nematode problems. Conclusive information on yield or stand reductions due to sting nematodes is currently unavailable for alfalfa. While wheat is an excellent host for the sting nematode, the crop can sometimes be grown successfully in infested fields by taking advantage of the natural population cycle of the nematode. In the fall when wheat is planted, nematode numbers in the upper soil profile are generally at their lowest point.