click to enlarge 
click to enlarge |
Several species of lesion nematodes are associated with soybeans, and the geographic distribution of each species is different. This group of nematodes can severely suppress root growth, causing necrosis of the roots and overall stunting of the plant. Occasionally, damage may be so severe that plants are killed. Discrete root lesions are most typically associated with this nematode’s damage and can be observed on primary and secondary roots.
Above-ground symptoms of root lesion nematode damage are not unique. Infestations of lesion nematode can be accurately diagnosed only by detecting juveniles and/or adults of the nematode in soil and root samples. Rotation to nonhost crops (which will vary by nematode species) can be an effective management strategy. Several nematicides also are labeled for control of lesion nematode, but efficacy and economics should be carefully considered when employing this management option. |
| Links to state specific information: | |||||||||
| Delaware | Illinois | ||||||||