Common Garden Pests in Devon and How to Manage Them
Spotting the usual suspects
We start by looking for the symptoms. Ragged holes and slime trails point to slugs and snails. Distorted new shoots, sticky honeydew and ants farming the insects suggest aphids. Notched leaves on brassicas usually mean caterpillars or sawfly larvae. Lift pots with a sharp tap and you might find vine weevil grubs eating roots. Identifying the pest helps us choose the least disruptive response.
Slugs and snails
These are the most common nuisance in damp Devon summers and autumns. We remove daytime refuges like boards and dense mulch, and hand pick in the evening. Placing a shallow tray of beer is a traditional trap but I prefer non chemical methods such as copper tape around pot rims, sharp grit on soil surfaces and encouraging hedgehogs and frogs. If slugs are persistent we can build raised beds higher than ground level to reduce access and give veg a better start.
Aphids and other sap suckers
Aphids multiply quickly on roses, fruit trees and soft growth. We blast small infestations off with a strong jet of water, prune out heavily infested shoots and attract ladybirds and lacewings by planting nectar rich flowers. Sticky traps and hand removal are effective for light attacks. We avoid broad spray treatments and prefer targeted, biological control methods if needed.
Leaf chewers and caterpillars
Cabbage whites and other caterpillars can decimate brassicas. We use netting to protect young plants, pick caterpillars by hand and rotate crops so pests are disrupted. For ornamentals like hostas I recommend early morning checks when slugs and snails feed most actively. Encouraging songbirds by providing shelter and water helps keep caterpillar numbers down.
Root pests and small mammals
Vine weevil grubs live in pot compost and chew roots. If pots show poor growth we repot into fresh compost and inspect roots. Rabbits and grey squirrels will nibble young shoots and fruit. Strong netting and planting thorny or robust hedging helps reduce browsing. For mole activity on lawns we assess whether the damage is superficial or affecting drainage.
A practical, seasonal approach
We recommend routine checks during spring and late summer, clearing plant debris and avoiding overwatering. Good soil health supports vigorous plants that tolerate a little nibbling. Where appropriate we encourage natural predators, use barriers and targeted controls and avoid blanket treatments that harm wildlife.
If you need hands on help to protect vegetable plots or ornamentals we can build raised beds, fit protective netting and carry out seasonal maintenance to reduce pest problems. Contact our team for advice.
