You'd think it would be a feast for Ladybirds! I was spraying black fly off with the hose but gave up in the end and just dug out the worst affected plants. Nasturtiums recover very well, feed white-butterfly caterpillars, self seed and don't really need much care. It's taken a particular dry year for a few of them to succumb, so don't give up on them just yet!
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I was spraying black fly off with the hose but gave up in the end and just dug out the worst affected plants. Nasturtiums recover very well, feed white-butterfly caterpillars, self seed and don't really need much care. It's taken a particular dry year for a few of them to succumb, so don't give up on them just yet!