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Some weed plots were mowed, others were buried in mulch and some were sprayed with either glyphosate, hot foam or pelargonic acid, a corrosive and foul-smelling oily chemical that is sometimes used as an herbicide.

The other methods such as mulching or the pelargonic acid didn't fare nearly as well, but the authors emphasized that combining different strategies instead of using just one would be most advantageous.

It is promptly oxidized by nitric acid, and is converted into pelargonic acid and other fatty acids.

In my last research on the action of nitric acid on oil of rue, I found that besides the fatty acids, which Gerhardt had already discovered, pelargonic acid is formed.

New researches, however, have led to the supposition that the odorous principle of quinces is derived from the ether of pelargonic acid.