Nematodes

Disease description
May cause damage in warmer regions. Root-knot nematodes cause swelling and distortion of roots; meadow lesion nematodes cause discolored patches of grass which do not respond to other remedial measures. The distribution and importance of these problems are uncertain.

Predisposing Factors
Root-knot nematode damage on annual blue grass is sometimes associated with over compaction of soil and low fertility

Cultural Control
Maintain turf vigour.

For information about other diseases that affect turf grasses, go to Major Diseases of Turf Grasses in Western Canada.