Growing Silverbeet, also Swiss Chard or Mangold

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02 Jun 09 Barb (Australia - sub-tropical climate)
Judy - the brown spots might be caused by broad mite, which came into my garden this summer (Sydney) with all the heat and humidity. Apparently they're a QLD mite and don't seem to have predators yet down here, but I've had some success again broad mite using Eco-oil which doesn't hurt the beneficial insects. Tricia, the problem with garlic is it also kills off lacewings which are an important predator of aphids, mites, thrips, etc. Spraying with garlic works in the short term, but not good for the long term battle against pests because it reduces the number of helpful predators.
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31 Mar 15 rodney (Australia - tropical climate)
I have silve rbeat growing good but then something is eating them leaving big holes in the leaves, I can not see anything on them . what can I spray them with
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