Summary of Pests, Damage and Controls

Pest Damage Cultural Biological Contact Systemic
Scale Insect Sucks sap > poor growth. Excretes honeydew > sooty mould Hygiene Parasitic wasp Y Y
Mealy Bug Stunts growth. Premature leaf drop Hygiene Labybird. Parasitic wasp Y Y
Aphid Sap suckers. Attack meristems > distorted growth Maintain plant health. Wash / pick off. Sacrificial plants Lacewing larvae. Hoverfly larvae. Ladybird. Parasitic wasp. Earwig Y Y
Cabbage White larvae Holes in leaves, can overwhelm plant Netting. Sacrificial plants. Nematode Y X
Codling Moth Maggoty fruit (esp. apples, pears). Early drop Pheromone traps (reduce males > reduced laying females.) Nematode Y X
2-Spot Spider Mite Sucks sap. Leaf loss. Potential death High humidity. Hygiene Mite. Rove beetle X Y
Vine Weevil Notches in leaves (adults). Eat roots (grubs) > wilting & death Pick off grubs at night. Traps. Encourage natural predators. Nematode X Y
Western Flower Thrip Silvering on leaves, flecks on petals, stunted growth, distorted leaves Select clean plants. Weed out hosts. Mite (glasshouse) X Y (resistant)
Leatherjacket Cuts base of stem. Yellow lawn patches. Secondary damage from predatory birds (esp. Corvids) Soak lawn , cover in black plastic, remove grubs Nematode X X
Wireworm Tunnelling in potatoes Crop rotation. Regular Cultivation. Nematode X X
Earwig Eating potatoes & older foliage. Traps (straw stuffed upturned pots on canes) X Y X
Wood Pigeon Strips leaves from brassicas. Eats cherries, currants Netting X X X
Big Bud Mite Infects buds > failure top flower & fruit. Hygiene. Remove infected plants. Buy resistant / certified stock. X X X
Horse Chestnut Leaf Miner Tunnelling > white patches in June, leaf browning, early leaf drop Hygiene. Remove & burn fallen leaves. Pheromone leaf traps. Buy resistant varieties (Aesculus x indica). X X X
Mole Lawn damage / soil heaps. Uprooting young plants Traps X X X

Scale Insect

Species

Many. Divided into Soft and Armoured.
See https://www.mortonarb.org/trees-plants/tree-and-plant-advice/help-pests/scale-insects

Pest Identification

Scale Insect
Scale Insect

Mealy Bug

Species

A species of unarmoured scale insect

Pest Identification

Mealy Bug

Symptoms

Mealy Bug

Mealy Bug

Aphid

Pest Identification

Symptoms

Greenfly
Yellow Aphid

Aphid Honeydew

Cabbage White

Pest Identification

Adult

Larvae and Eggs
Cabbage White Larvae and Eggs

Symptoms

Codling Moth

Pest Identification

Adult

Larvae
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Symptoms

Codling Moth Damage in Apple

Codling Moth Damage in Apple

Spider Mite

Pest Identification

Two-Spot Spider Mite

Symptoms

Two-Spot Spider Mite Leaf Damage

Vine Weevil

Pest Identification

Adult
Vine Weevil Adult

Larvae
Vine Weevil

Symptoms

Vine Weevil Leaf Damage

Thrip

Pest Identification

Adult
Adult Western Flower Thrip

Symptoms

Adult Western Flower Thrip Leaf Damage

Leatherjacket

Pest Identification

Adult
Adult Leatherjacket

Larvae
Leatherjacket Larvae

Symptoms

Leatherjacket Larvae Lawn Damage

Wireworm

Pest Identification

Adult
Wireworm - Adult Form

Larvae
Wireworm Larvae

Symptoms

Wireworm Holes in Potato

Earwig

Pest Identification

Symptoms

Earwig Damage

Wood Pigeon

Pest Identification

Wood Pigeon Adult

Wood Pigeon

Symptoms

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Big Bud Mite

Pest Identification

Symptoms

Big Bud Mite in Blackcurrant

Horse Chestnut Leaf Miner

Pest Identification

Horse Chestnut Leaf Miner Moth

Symptoms

Horse Chestnut Leaf Miner Moth Leaf Damage

Mole

Pest Identification

Mole

Symptoms

Moel Damage on Lawn