The label is the law. Rates and restrictions below are taken from the product labels listed under Sources. Your product's own label governs; read it before you mix or apply. Mixing calculator · Disclaimer
- Active ingredient
- Etoxazole
- Chemical class
- IRAC Group 10B, a mite growth inhibitor affecting CHS1 that sits in the growth-regulation part of the scheme; etoxazole is the only active in its subgroup.[2]
- Mode of action
- IRAC Group 10B: Mite growth inhibitors affecting CHS1: etoxazole[2][1]
- Signal word
- TetraSan 5 WDG Miticide/Ovicide: Caution[1]
Spray limits and plant safety
Ornamentals get no more than two TetraSan applications per crop cycle or six-month period. Christmas trees get one per season, at 28 to 40 oz per acre.[1]
Never apply it through irrigation or chemigation, and skip poinsettias once bracts form. Test it on a few plants and watch for two weeks before treating many.[1]
Rotation with other miticides
IRAC lists etoxazole alone in subgroup 10B, next to the 10A actives clofentezine and hexythiazox. The label says to alternate it with miticides that work differently.[2][1]
Where it is used
It kills mite eggs and nymphs, not adults, so spray at the first sign of infestation. Treated adult females lay eggs that won't hatch.[1]
It moves through the leaf, so spray landing on the upper surface also controls mites feeding underneath.[1]
When adults must be knocked down in under a week, the label says to combine it with a contact adulticide.[1]
Drop the sealed packets into a tank at least half full of water and let them dissolve completely before adding anything else.[1]
Products and registrations
| Product | Registrant | EPA Reg. No. | Active % | Formulation | Signal word |
|---|---|---|---|---|---|
| TetraSan 5 WDG Miticide/Ovicide[1] | Valent U.S.A. LLC | 59639-108 | 5.0% | water dispersible granule in water-soluble packets | Caution |
Label rates
| Product | Use | Pests | Rate |
|---|---|---|---|
| TetraSan 5 WDG Miticide/Ovicide | Bedding, flowering and foliage plants, ground covers, shrubs, ornamental trees, and non-bearing fruit and nut trees | Two-spotted, Pacific, Lewis, spruce and southern red spider mites; European red mite; citrus red mite | 8–16 oz product per 100 gallons of water[1] Each water-soluble packet holds 2 oz, so that's 4 to 8 packets per 100 gallons, or 16 to 32 oz per acre. A second spray must wait at least 14 days. |
| TetraSan 5 WDG Miticide/Ovicide | Tomatoes grown in greenhouses, lathhouses and shadehouses | Spider mites including two-spotted, Pacific, Lewis and spruce spider mites | 8–20 oz product per 100 gallons of water[1] As a high-volume spray, 100 gallons of solution covers about 20,000 sq ft. Wait at least 21 days before a second spray, and 1 day before harvest. |
Safety and environmental hazards
People
Signal word CAUTION: harmful if swallowed and causes moderate eye irritation. Mixers and loaders opening the packets wear a NIOSH-approved particulate respirator, plus long sleeves, long pants, shoes and socks.[1]
Pets
Outside of farm and nursery settings, the label keeps unprotected people out of the spray area and off treated plants until sprays have dried.[1]
Bees and pollinators
The label has no bee or pollinator statement.[1]
Fish and water
Toxic to freshwater and saltwater invertebrates, including oysters and shrimp. Don't spray onto water or when weather favors drift, and keep runoff out of nearby water.[1]
Common questions
- Does etoxazole kill adult mites?
- Not directly. The label says it kills eggs and nymphs, and treated adults can't produce viable eggs.[1]
- How much TetraSan per 100 gallons?
- 8 to 16 ounces, which is 4 to 8 of the 2 oz packets, for ornamentals; 8 to 20 ounces for indoor tomatoes.[1]
- Can homeowners use TetraSan 5 WDG?
- It is labeled for commercial use. It can go on landscapes at homes, but the storage section says it is not for use or storage in or around the home.[1]
Sources
- U.S. EPA Pesticide Product Label System, “TetraSan 5 WDG label, EPA Reg. No. 59639-108 (EPA-stamped, Nov. 4, 2020).” www3.epa.gov/pesticides/chem_search/ppls/059639-00108-20201104.pdf (accessed 2026-10-06)
- Insecticide Resistance Action Committee, “IRAC Mode of Action Classification Scheme, Version 11.5 (Feb. 2026).” irac-online.org/documents/moa-classification/ (accessed 2026-10-06)