Aerosols & Fogging Concentrates

Two types:

  • Aerosol cans
  • Fog or smoke generators

Aerosol cans

These formulations contain one or more active ingredients, a solvent and a propellant. Most aerosols contain a low percentage of active ingredients. Ready-to-use aerosols are usually small, self-contained units that release the pesticide when the actuator is depressed triggering the valve to release the contents.

The pesticide is ejected through a fine opening by an inert gas under pressure, creating fine droplets. These products are used in greenhouses, in small areas inside buildings, or in localized outdoor areas. Their advantages include:

  • Ready-to-use
  • Portable
  • Easily stored
  • Convenient way to buy a small amount of a pesticide
  • Retain potency over fairly long time

Their disadvantages:

  • Practical for only very limited uses
  • Risk of inhalation injury
  • Hazardous if punctured, overheated, or used near an open flame
  • Difficult to confine to target site or pest

Fog or smoke generators

Formulations for smoke or fog generators are aerosol formulations but not under pressure. They are used in machines that break the liquid formulation into a fine mist or fog (aerosol) using a rapidly whirling disk or heated surface. These formulations are used mainly for insect control in structures such as greenhouses and warehouses and for mosquito and biting fly control outdoors.

Their advantages include:

  • Easy way to fill entire enclosed space with pesticide

Their disadvantages:

  • Highly specialized use and associated equipment
  • Difficult to confine to target site or pest
  • May require respiratory protection to prevent risk of inhalation injury
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