Huge product rangeOver 140,000 books & equipment products
Rapid shippingUK & Worldwide
Pay in £, € or U.S.$By card, cheque, transfer, draft
Exceptional customer serviceGet specialist help and advice
Galls are growths caused by the action of other organisms. They are often bizarrely shaped and highly coloured. This fold-out introductory guide looks at common galls, like the red pimples found on sycamore and oak apples, and explains the life cycle of the organisms that cause them. It includes illustrations for 69 common galls.