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
- S-Kinoprene
- Chemical class
- Juvenile hormone analogue; IRAC Group 7A juvenile hormone mimics.[2]
- Mode of action
- IRAC Group 7A: Juvenile hormone mimics: juvenile hormone analogues[2]
- Signal word
- Enstar AQ Insect Growth Regulator (RF2067 EW): Caution[1]
Preventive versus curative programs
The label builds two schedules. A preventive program starts before insects reach damaging levels, with 16 fl oz per 100 gallons every 2 weeks.[1]
When adult insects are already present, the curative program doubles the rate for two sprays a week apart, then shifts to the preventive schedule two weeks later.[1]
As an IRAC Group 7A juvenile hormone mimic, kinoprene works by disrupting insect development rather than acting on the nervous system.[2]
Where it is used
Coverage matters most. Spray both the tops and bottoms of leaves until runoff, and mix only what you will use within 24 hours.[1]
For fungus gnats, wet the soil completely, then water it in as a drench so the spray reaches eggs and larvae. Make 2 applications 7 to 10 days apart.[1]
Chemigation is allowed only through drip, microjet or overhead sprinkler systems. Skip systems that miss leaf undersides, and never chemigate for root mealybugs.[1]
The label says it can be tank mixed with common insecticides and miticides such as Mavrik Aquaflow. Jar-test the mix first and test-spray a few plants for injury.[1]
Products and registrations
| Product | Registrant | EPA Reg. No. | Active % | Formulation | Signal word |
|---|---|---|---|---|---|
| Enstar AQ Insect Growth Regulator (RF2067 EW)[1] | Wellmark International | 2724-793 | 18.4% | emulsion in water | Caution |
Label rates
| Product | Use | Pests | Rate |
|---|---|---|---|
| Enstar AQ Insect Growth Regulator (RF2067 EW) | Ornamental plants in greenhouses, shadehouses and lath houses | Whiteflies, thrips, aphids, soft and armored scales, fungus gnats | 16–32 fl oz product per 100 gallons of water[1] Preventive programs use 16 fl oz every 2 weeks; existing infestations get 32 fl oz twice, 7 days apart, then back to 16 fl oz. One hundred gallons covers 20,000 sq ft, and 5 gallons covering 1,000 sq ft takes 5 teaspoons. |
| Enstar AQ Insect Growth Regulator (RF2067 EW) | Potted plants infested with root (ground) mealybugs | Root mealybugs | 3.5 tbsp product per 5 gallons of water[1] Submerge the whole pot in the solution until air bubbles stop rising, so the root ball is saturated. Repeat as needed. |
Safety and environmental hazards
People
Signal word CAUTION: harmful if swallowed and causes moderate eye irritation. Handlers wear long sleeves, long pants, shoes and socks, and workers stay out of treated areas for 4 hours.[1]
Pets
The hazard statement applies to humans and domestic animals. Its uses are indoor plant production and interiorscapes, and the label bars spraying in any way that contacts people other than protected handlers.[1]
Bees and pollinators
The label has no bee hazard statement, and it is restricted to indoor use on ornamental plants.[1]
Fish and water
The label gives no environmental hazard statement beyond storage and disposal: don't contaminate water, food or feed, and triple rinse empty containers.[1]
Common questions
- Can I use Enstar AQ on houseplants or outdoors?
- The label limits it to indoor use on ornamentals in greenhouses, shadehouses, lath houses and interiorscapes such as atriums. It is a professional product under the Worker Protection Standard.[1]
- How much Enstar AQ goes in 5 gallons?
- Five teaspoons (24 mL) for a preventive spray over 1,000 sq ft, or 3.5 tablespoons (48 mL) for a curative spray or a root mealybug drench.[1]
- Will kinoprene hurt poinsettias?
- The label says it was tested on many poinsettia varieties and other plants without injury, but advises testing a small sample before treating a whole crop.[1]
Sources
- U.S. EPA Pesticide Product Label System, “RF2067 EW (Enstar AQ Insect Growth Regulator) label, EPA Reg. No. 2724-793 (EPA-stamped, July 31, 2009).” www3.epa.gov/pesticides/chem_search/ppls/002724-00793-20090731.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)