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Black bryony berries. Getty Images

What is bryony?

Thorn apple fruit. Getty Images

How to get rid of thorn apple

Wasps eating ripe grapes

How to get rid of wasps

A blighted tomato plant with rotting fruit and withered leaves

Tomato blight

Green shield bug, Palomena prasina. Getty Images

What is a green shield bug?

Giant hogweed flowers. Getty Images

What is giant hogweed?

Herb robert, Geranium robertianum. Getty Images

What is herb robert?

Duckweed growing on the surface of a pond

What is duckweed?

Ragwort with small tortoiseshell butterfly. Getty Images

What is ragwort?

Himalayan balsam

What is himalayan balsam?

Red spider mites and webbing visible on plant leaves

Red spider mites

Cat in the garden

How to deter cats from your garden

Onion leaves damaged by thrips

Thrips

Potato blight

How to stop potato blight

Chickweed seedlings in a pot

Chickweed