• Sprays - Spray formulations are prepared for insecticides, herbicides, miticides, fungicides, algicides, growth regulators, disinfectants, and repellents. It is proven that more than 85% of all pesticides are applied as sprays.
• Dusts - These have been the simplest formulations of pesticides.
• Aerosols - Aerosols are effective and provide little or no residual effect as do conscientiously-applied sprays.
• Fertilizer combinations - These are fairly common formulations to the home gardeners.
• Granular pesticides - Granular pesticides defeat the disadvantages of dusts in their handling characteristics.
• Fumigants - This is a chemical compound used in it's gaseous state to control pests.
• Impregnating materials - These materials will only include treatment of woolens for timbers and mothproofing against wood-destroying organisms.
• Baits - Baits are used as lures or traps for certain kinds of pests.

Some pesticides are much more poisonous than others, and severe illness may result when only a small amount of a certain chemical has been ingested, while with other compounds no severe effects would result even after ingesting great quantities.

Some of factors that influence the poisonous state of pesticides are:

• the concentration of the chemical
• the toxicity of the chemical
• length of exposure
• the route of entry or absorption by the body