Posted in Diseases
What does it look like?
Similar to its metallic namesake, rust begins as small yellow spots on leaves and stems and develops into bubble-like pustules full of reddish spores. The red spores will stick to your finger if touched, and they have a distinct rusty appearance.
When is a lawn susceptible?
Kentucky bluegrass, Perennial ryegrass and Zoysia grass are the most susceptible to rust. It will appear after prolonged periods of damp, overcast weather, or in the shade of late summer and early fall. Lawns that are under-nourished increase their invitation for rust.
How can we get rid of it?
If you balance your fertilization program, rust doesn't stand much of a chance. The right amount of nitrogen will stimulate lawn growth, allowing the grass to grow out of the disease. You can accelerate this program by increasing the height of your mower and mowing more frequently. Fungicides also can stop rust problems, but they're often no more effective than a good regimen of nitrogen and correct mowing.
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