Plant Pest & Disease Solver

A fungal disease that creates dark brown spots with concentric rings, like a target, on the leaves of cabbage-family crops, carrots and flowers.

A fungal disease that causes dark, sunken spots on leaves, flowers and fruit, especially mango, chilli and papaya.

Ants rarely damage plants themselves, but they protect sap-sucking pests for their honeydew and may nest in pots, drying out the roots.

Small, soft-bodied insects that cluster on new shoots and buds, sucking sap and leaving sticky honeydew behind.

A fungal disease that causes olive-brown blotches on leaves and corky, cracked scabs on apples and pears.

Striped caterpillars that feed in large groups at night and can strip a lawn, grass crop or vegetable bed in a matter of days.

A small metallic blue-black beetle with yellow marks whose adults and grey grubs chew asparagus spears and ferns.

A bacterial disease that causes water-soaked angular leaf spots and dark spots on pods and fruit in beans, pomegranate, geranium and other plants.

Small, dark, water-soaked spots on leaves and fruit caused by bacteria that spread rapidly in warm, wet weather.

A bacterial rot that turns fleshy roots, bulbs, stems and leaves into wet, slimy, foul-smelling mush.

A soil-borne bacterial disease that causes sudden wilting of green plants, especially tomato, brinjal and chilli.

Caterpillars that live inside spindle-shaped silk bags covered with bits of leaf and strip evergreens and other shrubs of their foliage.

A serious viral disease of banana spread by aphids and infected suckers, causing stunted plants with bunched, narrow leaves.

A black weevil whose grubs tunnel in the corm of banana plants, weakening them so that they topple over in wind and yield small bunches.

A seed-borne and aphid-spread virus that mottles and puckers bean leaves, stunts plants and reduces pod yield.

Birds that peck at ripening soft fruit, taking bites or whole berries just as they are ready to pick.

A fungal disease of grapes that causes brown leaf spots and turns berries into hard, shrivelled black mummies.

A common fungal disease of roses that causes black spots with feathery edges on leaves, followed by yellowing and leaf drop.

A disease that blackens and rots the base of potato stems from soil-borne bacteria, and causes sunken cankers and leaf spots on cabbage-family plants.

Long, narrow, soft-bodied beetles that swarm over leaves and flowers, and release a chemical that causes painful blisters on skin.

A dark, sunken patch at the base of tomatoes, chillies and other fruit, caused by a shortage of calcium in the developing fruit.

When leafy or root crops send up a flower stalk too early, which makes leaves bitter and roots woody.

A trace-element shortage that causes hollow stems, brown hearts in roots and brassica heads, and cracked, corky growth.

A fungal disease that causes boxwood leaves to develop dark spots, turn brown and fall, leaving bare stems with black streaks.