Cyclodiene

Cyclodiene is a sub-category of organochlorine insecticides. The other two in the organochlorine group are Dichlorodiphenylethanes and Chlorinated Benzenes & Cyclohexanes.

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All are derived from hexachlorocyclopentadiene and have a similar structure based on two 3-dimensional carbon ring units, one of which is heavily chlorinated. WIth the exception of endosulfan, all are now banned in the US.

• Aldrin - Used mainly as an extremely persistent contact insecticide.
• Dieldrin - Very effective V's livestock ectoparasites (used in sheep dips).
• Endrin - General contact insecticide.
• Chlordane - Used to control earthworms in lawns & golf courses.
• Endosulfan