They are aphids, and the white fluffy things are their shed skins. You can squash them by hand - and hopefully your garden is full of birds, hoverflies etc which will help to hoover them up... if there are lots of aphids you can squirt them with a hose to knock them off. It's not really advisable to use chemicals on plants you're planning to eat, though if you're desperate you could use a contact spray based on fatty acids or oils.
"The one who plants trees, knowing that he will never sit in their shade, has at least started to understand the meaning of life." Rabindranath Tagore
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You can squash them by hand - and hopefully your garden is full of birds, hoverflies etc which will help to hoover them up... if there are lots of aphids you can squirt them with a hose to knock them off. It's not really advisable to use chemicals on plants you're planning to eat, though if you're desperate you could use a contact spray based on fatty acids or oils.
Has anyone bought any? Successful?