Stinging nettles (Urtica dioica) don't always have the best reputation among gardeners, but they are a crucial part of the ecosystem for many British butterfly caterpillars. Luke says, 'Host plants ...

1. Remove them by hand You should never underestimate the power of your own two hands, especially when you want to stop ...

Many caterpillars only eat the leaves of one kind of plant ... These plants are more drought and heat tolerant than native UK species. If you can, its best to plant these species alongside each other ...

It is very important that they put some of the plant where they found the caterpillars into the jar as well. Most caterpillars only like one sort of food - they are very fussy! 3 Your children ...