For grins, I tried spraying the Tenacity I got to kill the Nimblewill in my lawn on some of the crabgrass in my lawn. It worked great. Now I have several more pale spots in my yard, but the Tenacity does not seem to have had ANY effect on my normal grass (Don't know what varieties I actually have, it is a mixture of various stuff from when we bought the house 49 years ago and what I have reseeded over the years.

Pests on crops or gardens?

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Diaguard® is a freshwater, "Food Grade", white diatomaceous earth. It has a very high silica content which enables it to literally cut through insects waxy outer layer. Diaguard® has unique characteristics which make it ideal for use as an inert, environmentally safe, non-harmful insecticide.

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