(Bellis perennis) Daisies, or common daisies, are perennial plants regarded as weeds when they take over the garden. They are usually more of a problem when growing in the lawn.

(Cirsium arvense) Creeping thistle, as its name suggests, is a perennial weed with roots that quickly spread over large distances, making it very difficult to control and eradicate.

(Ranunculus repens) Creeping buttercup, as its name suggests, is a perennial weed that can spread over large distances, making it difficult to control once it takes over your garden.

(Elymus repens) Couch grass, or twitch or scutch, is a creeping, perennial grass that, because of its rapid spreading tendency, can become a serious weed problem in the garden.

(Eriosoma lanigerum) Like other aphids, woolly aphids are small, sap-sucking insects that attack and damage plants. They cover themselves in a “woolly” covering for protection.

(Aleurotuba jelinekii, Aleyrodes proletella, Trialeurodes vaporariorum) Whitefly, as their name suggests, are small white flies that attack a wide range of plants. These sap-sucking insects can build up in large numbers and weaken plants.

(Various Dolichovespula, Vespa and Vespula species) Wasps rarely do any direct damage to plants, but they can damage ripening fruit. But they have an annoying habit of flying around you, especially when you’re eating.

(Otiorhynchus sulcatus) Vine weevils are beetles that attack a wide range of plants. The adults eat the leaves, but the more devastating grubs, or larvae, eat the roots and kill plants.

(Pyrrhalta viburni) Viburnum beetle is a serious pest of several species of viburnum. The larvae attack the leaves, causing severe defoliation of plants. Adult beetles also eat the leaves.

(Several species) Scale insects are sap-sucking insects that look like limpets or barnacles on the stems and leaves. They attack and feed on a wide range of plants.

(Numerous species)  Slugs and snails are probably the most recognised and most destructive pests of garden plants. They will eat and damage just about any plant they come across.

(Several different species) The caterpillar-like larvae of several sawfly species eat the leaves of several garden plants, often completely defoliating the plant – almost overnight.