Photo courtesy of Fiver13 at Flickr.com.

While they may not be as effective as complex chemical poisons, several simple chemical compounds are available that that any organic gardener can safely dust onto his or her plants without any worry of degrading the environment.

Copper sulfate, for example, works as a general purpose bactericide and fungicide. Lime sulfur (calcium polysulfide) also works as a bactericide and fungicide, but has an insecticide effect as well. Pure elemental sulfur is particularly effective: it kills many types of mildew and fungi, not to mention spider mites, thrips, aphids, and leafhoppers.

You should be able to get all three at a large garden center. Failing that, they’re all easily available over the Internet.

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This entry was posted on Friday, November 30th, 2007 at 8:51 pm and is filed under Gardening Tips. You can follow any responses to this entry through the RSS 2.0 feed. You can skip to the end and leave a response. Pinging is currently not allowed.