Q&A for How to Apply Diatomaceous Earth Outdoors

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How long do I leave diatomaceous earth on the lawn after application before watering the lawn?

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Whether you have used the wet or dry method of spreading your diatomaceous earth outdoors, it is susceptible to moisture and reapplication is necessary after each rainfall or sprinkler system. Rule of thumb: If you can't SEE the powder, reapply every 3 days or so.

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I want to treat lawn that my dog plays on, is DE safe for animals?

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DE comes in two forms: non food-grade and food-grade. Non food-grade is safe when applied to a lawn, but any DE that is to be ingested by pets should be food-grade. It is made up of the skeletal structures of tiny organisms whose spines are only harmful to small and delicate parasites. However DE that isn't food-grade might contain chemicals from processing that can harm pets.

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My dog was recently diagnosed with hookworms and DE was recommended for spots where feces was left over 24 hours. How do I know it's been effective? Should I spread it all over the lawn instead?

Community Answer

Do not treat any area your dog/s go in with anything. You must treat your actual dog. Then, pick up and dispose of the feces immediately, as the dog got this by ingesting feces. Wash your hands well after treating the dog or collecting feces.

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What is best way to apply to boring bee holes?

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Community Answer

Fit and fill the honey bee openings. Utilize a little piece of folded aluminum foil or a piece of steel fleece to stuff into the opening, and afterward, fix over it with a weatherproof wood fix clay. Paint over the fix when it is dry.

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How can I kill leather jackets in the grass?

Gunner Stewart

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One of the safest and most natural methods is applying nematodes, which are microscopic worms that feed on leather jackets. You can buy them at garden centers and mix them with water to apply to your lawn. For a different approach, drench the affected area with water in the evening and cover it with a plastic sheet overnight; in the morning, the larvae may come to the surface, and you can collect and remove them. Aerating your lawn can also improve drainage and make the environment less attractive for the leather jackets, helping to reduce future infestations.

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Which should I apply first on my lawn: diatomaceous earth or fertilizer like Turf Builder that sprays through a hose?

nida

Community Answer

Apply diatomaceous earth first for pest control, then use the fertilizer. If you have a severe infestation or need professional help, consider contacting a pest control service for the best solutions for your lawn.

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How long does diatomaceous earth last when mixed with water?

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Community Answer

A mixture of diatomaceous earth with water generally lasts 1 to 2 weeks, especially if kept in a cool, dark place. Be sure to check for changes in odor, color, or separation before use. For optimal effectiveness, it's best to make fresh mixtures regularly.

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