Toxicity under specific insecticides

Monofluoroacetic acid offers little promise as a mosquito larvicide, but 2-ethylhexyl monofluoroacetate is a very powerful aphicide. The high toxicity of the fluorinated lower aliphatic acids and their esters to vertebrates probably precludes their use as insecticides except under highly controlled conditions. The toxicity of the fluorinated acids to the vertebrates is attributed to their interference with an enzyme system, but the possibility of finding one with a high specificity for insects is not excluded. 

Insecticide, thought to be less acutely toxic to mammals than DDT. Also used to treat cancer of the adrenal gland. Not specifically banned under the Stockholm convention, but is no longer manufactured in most countries... 

Symptomatic solutions to counteracting mildew and insect infestation have employed various natural and synthetic insecticides that are selected for their specificity for the targeted species. Application methods for their maximum efficiencies must be specified. Some are noninvasive to humans and provide toxicity only to larvae while others are regulated compounds that could provide environmental risk. The broad range of development in this area includes chemical modification of wool s disulfide crosslinks and side-chain hydroxyl and amine groups. Applied topically or by infusion, certain aromatic or cyclic compounds are available under recognized trademarks. In recent years these approaches have been eclipsed by the use of pyrethroid insecticides such as permethrin. They can be used alone or coadded to conventional formulations. 

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