Problems
Symptoms and Time of Appearance
Irregular patches of yellow grass that can reach up to a meter in diameter and sometimes even more. Lawn torn up by skunks that like to feed on the grubs. April-May and late August to early September.
Organism responsible
White grubs are the larvae of the June beetle.
Detection
The grass is no longer fastened to the soil and can be pulled out easily. Presence of white, "C"-shaped larvae (1 to 5 cm long).
Solutions
Preventive measures
- Increase the mowing length (6-8 cm).
- Aerate your lawn.
- Seed the damaged patches.
Control methods
Apply nematodes (microscopic worms that attack white grubs) in mid-August when the soil temperature is adequate. After applying the nematodes, water generously to allow them to penetrate the soil. An insecticide that is very effective against white grubs is available. Contact your local Vertdure branch.
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