how do we stop the white butterfly as we put on the derby dust but it did not work we lost all of our cabbages abd brusselsprouts last year even after the dust was put on them
- Palmers asked 5 years ago
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Derris dust controls caterpillars. You need to spray with an insecticide. Pop into your local Palmers store to choose from the options of organic or inorganic.
- Palmers answered 5 years ago
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