Will this kill yellow jackets?

It will, BUT!!! it works slowly, kills them in 2-24hrs, so if you spray/dust a wasp or wasp nest it's going to be MAD and very much alive while it chases and stings you. If you need to kill a wasp in person use one of the wasp sprays, those work to knock the wasp paralyzed in less than 5 seconds. If you want to prevent wasps from returning and nesting in the area, mix four tablespoons of diatomaceous earth in a quart of water , shake well, and use in a sprayer to coat the eaves/ceiling, and once it dries and they come in contact with it to try to settle there, they will get dusted & later die.

Will this kill Sarcoptes mites

I believe it will kill them as well as its already been reducing the population of any bug that have been crawling on my floor. The best way to use the product is to spread it in the area where you see the infestation using the most. I hope that helps

Can this be used in a crawl space?

Yes and works very well. Please just wear a good mask, gloves, and eye protection when doing it. Also take a shower when you are done.

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Harris Diatomaceous Earth Crawling Insect Killer, 4lb with Powder Duster Included Inside The Bag

Product ID: 184702291

Details

Brand
HARRIS
Item Form
Powder
Item Weight
1.3 Pounds
Target Species
Insects
Unit Count
64 Ounce

🌿100% natural, chemical-free formula

🦗Kills 7+ crawling insect types

🕳️Includes precision powder duster

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¥11500

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Description

🛡️ Defend your space naturally—pest-free living, no compromises!

PURE SAFE POWER - Crafted from 100% freshwater diatomaceous earth with zero additives, safe for kids and pets when used as directed.
LONG LASTING BARRIER - Stays effective indoors and outdoors as long as it remains dry—perfect for basements, gardens, and entry points.
MULTI INSECT MASTERY - Effectively eliminates ants, bed bugs, cockroaches, fleas, spiders, and more—your all-in-one pest defense.
PRECISION APPLICATION - Comes with an easy-to-use powder duster for mess-free targeting of cracks, crevices, and hard-to-reach spots.
MECHANICAL KILL NO CHEMICALS - Dehydrates insects on contact by damaging their exoskeletons—no toxic residues, just pure physical action.

Harris Diatomaceous Earth Crawling Insect Killer is a 4lb natural powder that mechanically kills a broad spectrum of crawling insects without chemicals. Featuring 100% pure diatomaceous earth and an included powder duster for precise application, it offers long-lasting indoor and outdoor protection trusted by professionals since 1928.

Specifications

ASIN	B082LRSCV8
ASIN	B082LRSCV8
Best Sellers Rank	#6,077 in Health & Household ( See Top 100 in Health & Household ) #42 in Indoor Insect & Pest Control
Brand Name	HARRIS
Customer Reviews	4.3 4.3 out of 5 stars (18,629)
Date First Available	December 10, 2019
Included Components	4lbs bag of Diatomaceous Earth with Puffer Applicator Tips
Item Form	Powder
Item Weight	1.3 Pounds
Item model number	DECRAWL-4P
Manufacturer	PF Harris
Manufacturer	PF Harris
Model Number	DECRAWL-4P
Package Dimensions	17.24 x 11.38 x 4.96 inches; 1.32 Pounds
Part Number	DECRAWL-4P
Target Species	Insects
UPC	072725012279
Unit Count	64 Ounce

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¥11500

Duties & taxes included

In stock

Sold byAmazon JapanDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

Buyer Protection · Full refund if your order doesn't arrive as described.

Desertcart purchases this item on your behalf and handles shipping, customs, and support to Japan.

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TrustScore 4.5 | 7,300+ reviews

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