Pests
Aphids
Plants102
Topics104
Sticky leaves Small, sap-sucking insects that colonize young shoots and undersides of leaves, weakening the plant and potentially transmitting viruses.
Open guidePlant health
Pests
Pests in the garden: search and filter 34 topics such as Aphids, Spider mites, Slugs, Flea beetles, Cabbage White Butterfly. Includes symptoms, affected…
Plant health
Pests
34 topics
Garden pests often show up first through chewing damage, sticky residue, distorted shoots, visible larvae, or insects on young growth. Early checks matter: once you know the affected plant and the likely pest, gentle measures such as hand-picking, rinsing, beneficial insects, netting, or better companion planting often work best.
PestsPestsGarden pests often show up first through chewing damage, sticky residue, distorted shoots, visible larvae, or insects on young…DiseasesDiseasesPlant diseases are often linked to fungi, bacteria, viruses, or weak growing conditions. Watch for leaf spots, coatings, wilting…DeficienciesNutrient deficienciesNutrient deficiencies usually show through leaf color, growth, flowering, and fruit development. Yellow leaves do not always mean…ProblemsPlant problemsMany plant problems are not a single disease but a mix of site, weather, care, and stress. Sunscald, frost damage, waterlogging…SymptomsSymptom pagesStart here when you only know the visible symptom.
Pests
Spider mites
Plants42
Topics42
Fine webbing on the underside of leaves Tiny arachnids that colonize the underside of leaves and suck plant sap. They prefer dry, warm conditions and form fine webs.
Open guidePests
Slugs
Plants35
Topics36
Eaten leaves and fruits Consume leaves and young shoots, especially after rain or humid nights.
Open guidePests
Flea beetles
Plants15
Topics15
Small beetles that chew characteristic small holes in the leaves. They jump when disturbed. Many small holes in young leaves (shothole symptom)
Open guidePests
Carrot fly
Plants8
Topics8
Larvae feed on roots, causing growth disturbances. Stunted growth
Open guidePests
Onion fly
Plants7
Topics7
Wilting and yellowing of leaves Onion fly larvae feed on the roots and base of leeks, which can lead to plant death. Young plants are particularly vulnerable.
Open guidePests
Leaf miners
Plants6
Topics6
Larvae mine leaves, leaving characteristic trails. Reduces photosynthesis. Light-colored winding tunnels in leaves
Open guidePests
Plum Fruit Moth
Plants5
Topics5
Larvae bore into fruits, causing worm damage. Wormy fruits
Open guidePests
Whiteflies
Plants5
Topics5
Small, flying insects that settle on the underside of leaves and suck plant sap. They leave behind honeydew, which can lead to sooty mold. In sheltered, warm locations or greenhouses, whiteflies can appear and weaken plants.
Open guidePests
Codling moth
Plants4
Topics4
A moth whose larvae bore into the fruit, destroying it from the inside. Larvae bore into fruits, causing worm damage.
Open guidePests
Scale insects
Plants4
Topics4
Sticky honeydew Stationary insects that suck sap and excrete honeydew. Often found on stems and branches.
Open guidePests
Wireworms
Plants3
Topics3
Feed holes in the underground pods Larvae of click beetles that live in the soil and feed on roots and germinating seeds.
Open guidePests
Cherry fruit fly
Plants3
Topics3
A small fly whose larvae hollow out cherries from the inside, making them inedible. Maggots in fruit
Open guidePests
Diamondback Moth
Plants3
Topics3
Window-pane feeding on leaves by small green caterpillars Windowpane-like feeding damage on the undersides of leaves
Open guidePests
Fruit tree red spider mite
Plants3
Topics3
A common spider mite species found on many fruit trees. It causes fine webbing and yellowish speckling on leaves. Tiny mites that feed on the underside of leaves, forming fine webs. Occur particularly in dry, warm weather.
Open guidePests
Beet leaf miner
Plants3
Topics3
Feeding tunnels (mines) in the leaves Blister-like mines in the leaves
Open guidePests
Thrips
Plants3
Topics3
Small, slender insects that suck plant sap, leaving silvery speckles on the leaves. Small, slender insects that feed on plant sap. They cause silvery speckles and distortions on leaves and flowers.
Open guidePests
Birds
Plants3
Topics3
Eaten or missing berries just before ripening Eat ripe fruits, often before they are fully mature.
Open guidePests
Aphid
Plants2
Topics2
Various aphid species suck on leaves and shoots, transmit viruses such as sweet potato virus. Curled leaves
Open guidePests
Wireworm
Plants2
Topics2
The larvae of various click beetle species that live in the soil and feed on the tubers and roots of the potato plant. They cause small, round holes in the tubers. Larvae of click beetles that bore holes into tubers, reducing quality.
Open guidePests
Strawberry blossom weevil
Plants2
Topics2
Bent flower stems Beetle lays eggs in flower buds and nips the stem, causing the bud to wilt and die.
Open guidePests
Winter moth
Plants2
Topics2
Holes eaten in leaves and blossoms in spring Caterpillars feed on buds and young leaves in spring, which can lead to defoliation.
Open guidePests
Cucumber Beetle
Plants2
Topics2
The cucumber beetle feeds on leaves and stems and transmits bacteria causing wilt diseases. Particularly dangerous for young plants. Small beetles that feed on leaves, flowers, and fruits, and can transmit diseases like bacterial wilt.
Open guidePests
Colorado potato beetle
Plants2
Topics2
A winged beetle whose larvae and adults feed voraciously on the leaves of Solanaceae plants, causing significant damage. A winged beetle that feeds on the leaves of the potato plant. Both the larvae and adult beetles can cause significant damage by eating the leaves and weakening
Open guidePests
Cabbage Aphid
Plants2
Topics2
Sucks sap from leaves and shoots, causing distortion, yellowing, and honeydew, which attracts sooty mold. Sticky leaf surfaces (honeydew)
Open guidePests
Squash fly
Plants2
Topics2
The larvae of the squash fly mine in the fruits and stems, leading to rot and wilting. Larvae bore into stems and fruit set, leading to wilting and death of the plant.
Open guide