Why Sample For Nematodes?
Several kinds of plant parasitic nematodes attack Alabama’s field crops, gardens, and landscape plantings each year. Crop losses caused by nematodes nationwide are estimated at around 5 to 10 percent annually. In the Southeast, where environmental conditions favor growth and reproduction of nematodes, losses are even higher. The six most damaging nematode species that affect Alabama growers are soybean cyst nematodes, lesion nematodes, stunt nematodes, lance nematodes, and the southern and peanut root knot nematodes. Symptoms caused by nematodes are usually not specific enough to permit diagnosis by examination of infected plants. Chlorosis (yellowing), stunting, early wilting, and reduced yields are all frequently associated with nematode injury, but also may be caused by other factors. Accurate diagnosis of nematode-induced disease or injury therefore usually requires soil laboratory analysis. Before valid control recommendations can be given, the specific types and numbers of nemato
