Major use areas 

Pyrethrum is the oldest insecticide known to man and well recognized for low mammalian toxicity and non-persistence in the environment. It rapidly knocks-down and kills a wide variety of insect pests such as cockroaches, mosquitoes, fleas, houseflies, etc.

It is also widely used in horticulture and by growers of organic crops for the control of leaf hoppers and other common pests. Major use areas include:

Indoor Residential (Home & Garden)
Household Aerosols (FIK & CIK)
Trigger Sprayers
Mosquito Coils & Mats
Shampoos for pets

Terrestrial Non-Food
Mosquito Control
Public Health Measures (Flies)

Indoor Food
Sprays & Fogs for Farms & Dairies
Protection of Food Processing & Handling
Protection of Stored Products
Sequential Aerosols for Restaurants

Terrestrial Food
Organic crops protection
Minor crops protection

Most formulations will contain a synergist such as Piperonyl Butoxide to enhance the performance. Recently many "organic" products omit these synergists for reasons of purity. Instead vegetable oils are added.