Richard

Well I agree, Orthonex is pretty extreme and its not for use on fruiting/edible plants. Diatomaceous earth kills insects by slicing them -- on their scale it is like a pile of razors and barbwire fence. It is most effective on soft bodied insects and not on spiders or flying pests that don't contact or lay eggs in the soil -- like leaf miners. Still, it is a good ingredient as part of a pest management plan. I like to apply it on top of my mulch -- esp. since slugs and snails hate it. You'll find it at a big box store in the pool chemical section.

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