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Turf melting out is caused by the fungal pathogen Dreschlera poae, in the family Pleosporaceae.It is a common problem on turfgrass and affects many different species. The disease infects all parts of the plant most commonly on golf course roughs, sports fields, and home lawns.
In lawn care, thatch is a layer of organic matter that accumulates on a lawn around the base of the grass plants. Thatch is a combination of living and dead plant matter including crowns, stolons, rhizomes, and roots. Grass clippings do not generally contribute to thatch buildup as they can be easily broken down by soil microorganisms.
Significant thatch problems in lawns can cause diseases and can encourage moss to grow in the areas where grass has died. A by-product of scarifying or de-thatching is that moss is also removed, and depending on how deep the scarifying blades are set, root cutting can also occur, and this in turn helps grass to thicken up over time. Scarifying ...
Thatch patches attract cinch bugs that cause brown spots and lawn grubs (aka beetle larvae) that eat roots. Even worse, grubs attract gophers, voles, and moles, which can tear up your landscaping ...
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It also benefits from thicker thatch layers (11). To summarize, the conditions that provide the most severity for this disease are environments of cooler temperatures, high dense thatch, a lower mowing height, and incorrect application and timing of fertilization (Nitrogen content too low) (11). Excessive watering may also promote disease growth.
If incorporating disease resistant varieties of turfgrass is not an option then focus on better management practices. Some of the management practice include reducing thatch, having adequate drainage, and removing dew during hot and humid weather. Dew can be removed from the grass from mowing, using a backpack blower, or dragging a hose across ...
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