Onslaught Microencapsulated Insecticide Concentrate - Long-Lasting

Our review of this concentrated microencapsulated insecticide finds it best suited for homeowners and small commercial operators who need a dependable, long-lasting residual spray for indoor and outdoor use. The biggest reason to buy is its controlled-release technology, which delivers persistent pest control across a wide spectrum of insects so treated areas remain protected for weeks to months with proper application. The formula is concentrated for dilution, can be applied with common sprayers, and leaves little odor or visible residue when mixed and used as directed.

Key Features

• Broad spectrum control: Kills ants, cockroaches, mosquitoes, fleas, ticks, spiders, scorpions and other listed pests so one product can handle multiple problems around a property.
• Controlled-release technology: Microencapsulation provides long-lasting residual activity so treated surfaces continue to affect pests after application.
• Concentrated formula: Designed to be diluted with water and applied with a hand-pressurized or power sprayer for flexible coverage and professional-style results.
• Indoor and outdoor use: Suitable for homes, office buildings, livestock facilities, turf, ornamentals and landscaped areas for versatile placement.
• Easy to apply: Shake before diluting and apply with standard sprayers to achieve even coverage without specialized equipment.

Who It's For

This product is aimed at homeowners, property managers and small commercial applicators who want a concentrated, professional-grade pest control option that covers both indoor and outdoor treated areas. It works well for people who prefer to treat perimeters, crawlspaces, patios and landscape beds themselves rather than hiring ongoing services.

Those who should look elsewhere include users who need an immediate knockdown-only aerosol or bait product for point treatments; Onslaught is designed for residual control, not as a single-contact spot spray. Also, anyone uncomfortable handling concentrated chemistry should consider a ready-to-use option or professional service.

Pros & Cons

Pros

• Effective against a wide range of pests, including mites and scorpions mentioned by customers.
• Long residual activity keeps killing pests for weeks to months when applied correctly.
• Professional quality concentrate that mixes with water and applies with common sprayers for broad coverage.
• Leaves minimal odor or visible residue, making it acceptable for many interior and pet areas when used per label.

Cons

• Some customers consider the concentrate pricey compared with simpler ready-to-use products, so upfront cost may be higher.
• Requires proper dilution and application equipment, which adds steps compared to ready-to-use sprays.

Specifications

Product	Microencapsulated insecticide concentrate
Volume	16 ounces
Use areas	Indoor and outdoor, food or non-food areas
Target pests	Ants, cockroaches, mosquitoes, fleas, ticks, spiders, scorpions, wasps and more
Application	Mix with water; apply with hand-pressurized or power sprayer
Technology	Controlled-release microencapsulation for residual control
Brand history	Developed by MGK, in pest control technology since 1902

Our Verdict

Onslaught Microencapsulated concentrate is a good pick for users who need a durable, professional-style residual treatment for multiple pests in both indoor and outdoor settings. Its controlled-release formulation and concentrated format offer strong value for those prepared to mix and apply it properly, delivering long-term control where a lasting perimeter or landscape treatment is desired.

Frequently Asked Questions

Can this be used around pets?
Yes, customers report safe interior and pet-area use when mixed and applied according to label directions and after treated surfaces have dried.

How long does the residual control last?
Residual activity is long-lasting thanks to microencapsulation; customers note continued effectiveness for weeks to months depending on application and environmental conditions.

What equipment is required?
Mix with water and apply using a hand-pressurized or power-operated sprayer for best results; shaking before dilution is recommended.