Cloud One & Nubes: Ultimate Wasp & Hornet Control for Pros 2026

Spring and summer bring a surge in pest control calls: wasp and hornet nests multiply, and crawling and flying insects invade basements, garages, and industrial spaces. For professional exterminators, having the right tools—effective, safe, and easy to use—can mean the difference between a one-and-done job and a frustrating callback.

Meet CLOUD ONE and NUBES VESPE E CALABRONI, two Hi-Pro-Chem products that together cover the most common warm-season scenarios, exclusively distributed in Italy by Hi-Pro-Chem S.r.l. Whether you're fogging a closed space or blasting a nest from a distance, these aerosol solutions deliver professional-grade results.

The Active Ingredient: Cypermethrin in Action

Both products rely on cypermethrin (CAS 52315-07-8) at 0.50% w/w, a synthetic pyrethroid with proven efficacy against a broad spectrum of arthropods. Cypermethrin works neurotoxically: it disrupts sodium channels in insect nerve membranes, causing rapid paralysis and death. In aerosol formulations, the ultra-fine particle dispersion ensures deep penetration into cracks and crevices, reaching insects even in their most hidden refuges.

Professional caution: Cypermethrin is hazardous to bees and can cause severe adverse reactions in cats due to their high sensitivity to pyrethroids. Always inform clients before treatment and include clear post-treatment instructions.

CLOUD ONE – Total Release Fogger · 150 ml

Application Scenario

CLOUD ONE is a total release fogger designed for complete treatment of enclosed, non-washable spaces. Its mission: knock down every insect—crawling and flying—in a confined area with a single treatment, without requiring the operator to stay inside during release.

Target Insects

• Crawling insects: cockroaches and their nymph stages
• Flying insects: flies, mosquitoes, and wasps found indoors

Areas of Use

• Cellars, basements, structural wasp nests, garages, carports, tool sheds
• Warehouses, storage rooms, barns, attics, electrical rooms, technical spaces

How to Use – Maximum Operational Simplicity

1. Close all doors and windows in the room to be treated.
2. Place the canister upright in the center of the room, slightly above floor level.
3. Activate by fully pressing the release tab.
4. Evacuate the room immediately.
5. Leave the room closed for 4 hours.
6. Ventilate before re-entering; dry-clean (sweep/vacuum) afterward.

Dosage

1 ml per m³ — the 150 ml canister covers spaces up to 150 m³.

WARNING: Once activated, the aerosol cannot be stopped.

NUBES VESPE E CALABRONI – Directed Jet Spray · 750 ml

Application Scenario

NUBES VESPE E CALABRONI is a directed jet aerosol for precise, targeted treatment of wasp and hornet nests, both indoors and outdoors. Its mission: neutralize the nest quickly and safely, even from a distance, minimizing operator risk.

Target Insects

• Wasps (including European wasp, paper wasp, and other social wasps)
• Hornets (including Asian hornet)
• Individual wasps or hornets in flight or at rest

Areas of Use

• Eaves, roof overhangs, attics, sheds, trees, bushes, fences
• Wall cavities, shutters, mailboxes, playground equipment
• Any location where a nest is accessible from a safe distance

How to Use – Precision and Safety

1. Identify the nest and approach cautiously, preferably at dusk when wasps are less active.
2. Shake the canister well before use.
3. Point the nozzle toward the nest entrance and spray for 3–5 seconds.
4. Maintain a safe distance (at least 3–4 meters) to avoid stings.
5. Observe from a distance; repeat if necessary after 24 hours.

Key Features

• Long-range jet (up to 5 meters) for safe application
• Fast knockdown – insects are paralyzed within seconds
• Foaming action helps seal the nest entrance, trapping remaining insects inside
• Odorless formula – no strong chemical smell

Comparison: When to Use Which Product

Safety and Best Practices for Professionals

Both products are classified as professional-use biocides and must be handled with appropriate PPE: gloves, goggles, and respiratory protection when applying in enclosed spaces. Always read the label and Safety Data Sheet before use.

For outdoor nest removal, consider combining NUBES with a physical removal tool (e.g., pole scraper) for complete nest elimination. After fogging with CLOUD ONE, advise clients to keep pets (especially cats) and children away from treated areas until surfaces are dry and the space is fully ventilated.

Frequently Asked Questions

1. Can I use CLOUD ONE in a room with food preparation surfaces?

No. CLOUD ONE is intended for non-washable, non-food-contact areas. Cover or remove all food, dishes, and utensils before treatment. After fogging, wipe down food-contact surfaces thoroughly before use.

2. How long does NUBES remain effective on a nest?

The residual effect lasts several days under dry conditions. However, for best results, treat the nest directly and remove it after 24–48 hours to prevent re-infestation.

3. Are these products safe for use around pets?

Both products are hazardous to cats and bees. Keep pets out of treated areas during application and until the product has dried or the space is fully ventilated. For outdoor use, avoid spraying near flowering plants or beehives.

4. Can I use NUBES indoors?

Yes, but only for targeted treatment of a nest inside a structure (e.g., attic, wall cavity). Do not use as a general indoor fogger; for that, choose CLOUD ONE.

5. What should I do if I accidentally activate CLOUD ONE and need to stop it?

Once activated, the aerosol cannot be stopped. Evacuate the area immediately and allow the product to discharge completely. After 4 hours, ventilate and clean as directed.

Final Thoughts

Whether you're a seasoned exterminator or a property manager preparing for peak season, having both CLOUD ONE and NUBES VESPE E CALABRONI in your arsenal ensures you're ready for any warm-weather pest challenge. For heavy raccoon infestations that require a different approach, check out our guide on the best poison for raccoons. And for more outdoor pest solutions, explore our yard and outdoors blog or home & garden tips.

Stay safe, work smart, and let the chemistry do the heavy lifting.

Author: Paulo Vivere