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the emerging aphids. Don't wait for the symptoms to appear, as there's no point in spraying once the leaves have become puckered.blackcurrants, redcurrants, whitecurrants early to mid-winter, springCommon garden pests affecting fruit treesWolly aphids on apple

growth. Check the pots daily.clematis, dahlias, chrysanthemums and other plantsspring, summer, autumnMore common garden pestsWaspsSlugsAntsCaterpillars

. However, they can remove quite a large area of leaf.Wait for the solitary female and swish her away. Try to avoid killing the bees because they're invaluable friends to gardeners, pollinating flowers.roses, wisteria, epimediumssummer to autumnMore leaf

.a range of ornamental plants, trees, shrubs, herbs, some vegetables, fruitspring, summerMore common garden pestsAphidsScale insectsFlea beetleEarwigs

Pea and bean weevils are a nuisance but rarely a major problem on the veg patch. The larvae live in the soil and feed on the root nodules. Then when the adults emerge in June and July, they climb up the plants and eat the edges of the leaves. Thankfully, these 4mm-long, brown, sn...

The rose leaf rolling sawfly injects a chemical into young rose leaves to cause them to curl protectively around her eggs. Within a week the eggs hatch into green caterpillars that start to eat their home. In mid-summer, leaving behind skeletonised foliage, they crawl down into t...

Purple-striped green beetles, 8mm long, congregate among the leaves, which they feed on. The beetles lay elongated eggs beneath the leaves from September and continue to do so on warm days right through winter. These hatch after a couple of weeks and the larvae feed on the plants...

(causing no damage) to be taken up by the sap-sucking whiteflies.tomatoes, cucumbers, fuchsias, other greenhouse plantsspring, summer, autumnMore common garden pestsAphidsLeaf miner flyEuonymus scaleMealybugs

The mint leaf beetle, Chrysolina herbacea is a native, iridescent green beetle that feeds on the leaves of the mint family in the south of the UK. Both the adults and their fat, black larvae feast on the foliage.Holes in leaves, made by iridescent green beetles and their and fat,...

The large, beautiful caterpillar larvae of the elephant hawk moth has two pairs of eye markings, which are made even more prominent when it withdraws its head into its body. They are, typically, a blackish-brown colour but are sometimes green, and though their 'eyes' make them lo...