|In Alaska, is it a good idea to dethach the lawn? We don't have the heat to cause clipping to rot and decompose.|
|Thatch is a layer of living and dead organic matter that occurs between the green matter and the soil surface. Excessive thatch (over 1/2 inch thick) creates a favorable environment for pests and disease, an unfavorable growing environment for grass roots, and can interfere with some lawn care practices. |
The primary component of thatch is turfgrass stems and roots. It accumulates as these plant parts buildup faster than they breakdown. Thatch problems are due to a combination of biological, cultural, and environmental factors. If your lawn has excessive thatch, dethatching is recommended. To determine whether or not your lawn has excessive thatch, simply dig out a section and measure the amount of thatch. You can replace the section after you've examined it.
Best wishes with your lawn.