The best solution for thatch is to make the soil the turf grass is growing in into a good healthy soil with an active Soil Food Web that will digest that thatch. Thatch buildup says the soil needs attention so start any thatch control program with a good reliable soil test and with these simple soil tests. a Thatch level of about 1/2 inch can be beneficial to a good healthy turf.

1) Soil test for organic
material. From that soil sample put enough of the rest to make a 4 inch level in
a clear 1 quart jar, with a tight fitting lid. Fill that jar with water and
replace the lid, tightly. Shake the jar vigorously and then let it stand for 24
hours. Your soil will settle out according to soil particle size and weight.
For example, a good loam will have about 1-3/4 inch (about 45%) of sand on the
bottom. about 1 inch (about 25%) of silt next, about 1 inch (25%) of clay above
that, and about 1/4 inch (about 5%) of organic matter on the top.

2) Drainage. Dig a hole
1 foot square and 1 foot deep and fill that with water. After that water drains
away refill the hole with more water and time how long it takes that to drain
away. Anything less than 2 hours and your soil drains’ too quickly and needs
more organic matter to slow that drainage down. Anything over 6 hours and the
soil drains too slowly and needs lots of organic matter to speed it up.

3) Tilth. Take a handful
of your slightly damp soil and squeeze it tightly. When the pressure is
released the soil should hold together in that clump, but when poked with a
finger that clump should fall apart.

4) Smell. What does your
soil smell like? A pleasant, rich earthy odor? Putrid, offensive, repugnant
odor? The more organic matter in your soil the more active the soil bacteria
will be and the nicer your soil will smell, to a point. Too much organic matter
can be bad as well.

5) Life. How many
earthworms per shovel full were there? 5 or more indicates a pretty healthy soil. Fewer than 5,
according to the Natural Resources Conservation Service, indicates a soil that
is not healthy.

That thatch removal spray might work if the soil has adequate levels of organic matter to sustain them, but then if the soil had adequate levels of organic matter the thatch probably would not have built up.

kimmq is kimmsr

Some people report good results with cornmeal as a fungicide. The original research was done by two people at Texas A & M, however they could not replicate the original research and no one else has been able to either so we do not know why the cornmeal, at that time, appeared to suppress that fungus.

Most everything I can find about nutrients in cornmeal refers to human consumption and not as a soil food. However, some people report good results using cornmeal as a fertilizer, about as good as soybean, cottonseed, and other grain meals.
The best way to get humates and microbes into the soil is to get adequate amounts of organic material into the soil. You can buy those things and spread them on the soil but if there is not food for them, organic matter, they will either go dormant or die.

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