The 12 entries in Laisha's encyclopedia that attack Cucumber, grouped by type. Each page covers identification, life cycle, the conditions that favour it, action thresholds and integrated management.

Growing Cucumber? The free Cucumber grow guide covers the crop from sowing to harvest.

Insect pests

• Cotton aphid (melon aphid)Aphis gossypiiInsect · A small aphid, from pale yellow to almost black, that forms dense colonies under the leaves of cotton,…
• Melon flyZeugodacus cucurbitaeInsect · A fruit fly whose maggots rot the young fruit of bitter gourd, cucumber, melon, pumpkin and other cucurbits.…
• Serpentine leafminer (Liriomyza leafminers)Liriomyza trifoliiInsect · Leafminers are tiny black-and-yellow flies whose maggots tunnel inside leaves, leaving pale, winding trails.…
• Silverleaf whitefly (Bemisia whitefly)Bemisia tabaciInsect · A tiny white sap-sucking insect that sits on the undersides of leaves of cotton, vegetables, cassava and…
• Western flower thripsFrankliniella occidentalisInsect · A thrips barely visible to the eye that lives in flowers and young leaves of vegetables, fruit and…

Mites

• Two-spotted spider mite (red spider mite)Tetranychus urticaeMite · A mite smaller than a pinhead that sucks the contents of leaf cells, leaving pale speckles, bronzed leaves…

Nematodes

• Root-knot nematodesMeloidogyne incognitaNematode · Root-knot nematodes are microscopic worms that enter roots and turn them into swollen, knotted galls, so…

Fungal diseases

• Grey mould (Botrytis)Botrytis cinereaFungal disease · Grey mould is a fluffy grey fungus that rots strawberries, grapes, tomatoes, flowers and hundreds of other…
• Powdery mildew of cucurbitsPodosphaera xanthiiFungal disease · The commonest disease of cucumber, melon, squash, pumpkin and other cucurbits worldwide. It covers leaves…

Oomycete diseases (water moulds)

• Damping-off of seedlingsPythium aphanidermatum and other soil-borne pathogensOomycete disease · Damping-off is the death of seeds and young seedlings caused by soil-borne water moulds and fungi, above all…
• Downy mildew of cucurbitsPseudoperonospora cubensisOomycete disease · Downy mildew is a fast-moving leaf disease of cucumber, melon, squash, watermelon and gourds. Angular yellow…

Virus diseases

• Papaya ringspot disease (PRSV)Papaya ringspot virusVirus disease · Papaya ringspot is the most destructive disease of papaya worldwide. Aphids spread the virus in seconds as…