Most other animals find that ladybirds taste terrible. The bright colour acts as a warning. They also 'bleed' an unpleasant substance when attacked. Birds such as swifts and swallows do eat ...

RHS' David Domoney: "Ladybirds can eat 5000 green flies and butterflies taste with their feet!" Available for over a year On RHS National Gardening Week, David tells us how to get green fingered ...