Treatments · Juvenile-hormone growth regulators
Hydroprene
A growth regulator, often labeled as S-hydroprene, used to disrupt development of roaches and other indoor insects.
Updated October 4, 2026 · Educational ingredient reference
Quick reference
- Chemical family: Juvenile-hormone growth regulators.
- Example forms: Liquid, Spray, Aerosol, Point-source device.
- Example target groups: Cockroaches, Stored-product insects, Drain flies, Fruit flies.
- Use context: Development control; not immediate adult knockdown.
- Targets and forms vary by product. The exact label governs permitted pests, sites and methods.
What is it and how does it work?
Hydroprene mimics insect developmental signals and interferes with maturation. Gentrol is an example product family, with concentrates, aerosols and point-source devices. Zoecon: Gentrol hydroprene technical bulletin explains the underlying ingredient or an example product. An active ingredient is only one part of the finished formulation.
What forms and pests are covered?
Example product forms include liquid, spray, aerosol, point-source device. Example target groups include cockroaches, stored-product insects, drain flies, fruit flies. These are drawn from different labels and references, not a claim that every product treats every listed pest. Check the label for the exact species, life stage and use site.
How is it used in pest management?
It is used alongside sanitation, monitoring and appropriately labeled adult-control measures. Combination products may also contain a conventional insecticide.
Identify the pest, correct food or moisture problems, close entry points where appropriate, and monitor the result. See our integrated pest management guide. A recurring infestation calls for reassessment, not an automatic stronger dose.
What cautions matter?
Follow each formulation's site and exposure instructions. A point-source device and an aerosol are not equivalent application methods. Low odor does not mean occupants may ignore the label.
Prevent children and pets from contacting stored or applied products. Follow the exact label for protective equipment, ventilation, return intervals, storage and disposal. Do not transfer a pesticide into a drink or food container. Read the label safety guide before selecting a product.
What are its limits?
Growth regulation is not instant adult knockdown. Do not attribute a combination product's adult kill or full target list to hydroprene alone.
The same ingredient in a garden, structural, aquatic or pet product does not make those products interchangeable. This page does not verify current Texas registration, recommend a brand or provide dilution rates, placement quantities or a treatment prescription. Manufacturer sources describe example products, not every formulation.
Where should you check before using a product?
Use the label attached to the exact product you intend to use. Confirm its target pest, permitted site and application method. Check any professional-use restrictions and applicable Texas rules. NPIC explains how to read a pesticide label. Older fact sheets remain useful background, but the current product label takes priority.
For suspected human exposure, follow the label's first-aid instructions and contact Poison Control at 800-222-1222. Call 911 for severe symptoms. For suspected pet exposure, contact a veterinarian immediately.
This field guide is educational and does not offer treatment bookings.
Sources
Related pest dossiers
- InsectsAn indoor suspect. Learn the identifying marks, food and moisture fixes, and bait options.
- InsectsA large outdoor suspect. Check drains, damp hiding places and the way indoors.
- InsectsA damp-ground suspect. Check crawl spaces, drains and gaps before reaching for spray.
- InsectsAn outdoor suspect with two looks. Inspect meter boxes, slab joints and incoming plants.