For the inexperienced gardener, below is a list of the most common pests and diseases that you are likely to encounter on your allotment. It seems each year, however, that there is an additional pest to add to the list. The list is far from complete but hopefully will be of help.

For a more complete list have a look here

PESTS

Pest	RHS Information	Identification
Black Fly	https://www.rhs.org.uk/advice/profile?pid=797
Green Fly	https://www.rhs.org.uk/advice/profile?PID=181
White Fly	https://www.rhs.org.uk/advice/profile?PID=482
Carrot Root Fly	https://www.rhs.org.uk/advice/profile?PID=485
Thrip	https://www.rhs.org.uk/advice/profile?PID=861
Allium Leaf Miner	https://www.rhs.org.uk/advice/profile?PID=643
Leek moth	https://www.rhs.org.uk/advice/profile?PID=652
Flea Beetle	https://www.rhs.org.uk/advice/profile?pid=510
Wire Worm	https://www.rhs.org.uk/advice/profile?pid=914
Slugs	https://www.rhs.org.uk/advice/profile?pid=228
Snails	https://www.rhs.org.uk/advice/profile?pid=231
Cutworms	https://www.rhs.org.uk/advice/profile?PID=910
Mealy Bug	https://www.rhs.org.uk/advice/profile?pid=201
Stink Bug	https://www.rhs.org.uk/advice/profile?PID=1059

DISEASES

Disease	RHS Information	Identification
Blight	https://www.rhs.org.uk/advice/profile?pid=217
Tomato Blossom End Rot	https://www.rhs.org.uk/advice/profile?PID=395
Leek Rust	https://www.rhs.org.uk/advice/profile?PID=214
Onion White Rot	https://www.rhs.org.uk/advice/profile?PID=226