Pest & Disease

Crop Disease Library & AI Scanner

Identify, understand, and treat common Kenyan crop diseases — or let our AI scan your crop in seconds.

How Our AI Scanner Works

1

Snap a Photo

Take a clear photo of the affected leaf, stem, or fruit with your phone.

2

Upload to Kilimo AI

Send the photo through our chat. The AI analyses the image pattern against thousands of known diseases.

3

Get Instant Diagnosis

Receive the disease name, severity, and treatment recommendations in Swahili or English.

4

Adjusted Loan Risk

If pests could affect your harvest, the risk assessment is updated automatically.

Free. No account needed.

Common Crop Diseases in Kenya

MaizeMaize Lethal Necrosis Disease (MLND)high

Symptoms

Yellow streaks on leaves, stunted growth, dead heart leaves, poor cob formation

Treatment

No cure. Remove and destroy infected plants. Use certified disease-free seeds.

Prevention

Plant resistant varieties, control thrips and aphids, practice crop rotation

MaizeFall Armywormhigh

Symptoms

Holes in leaves, window-pane damage, sawdust-like frass near whorl, damaged tassels

Treatment

Apply neem extract or recommended pesticides early morning. Biological control with parasitoids.

Prevention

Early planting, intercropping, scout fields weekly, use push-pull method

MaizeMaize Streak Virusmedium

Symptoms

Pale green to white streaks along leaf veins, stunted growth, poor grain fill

Treatment

No cure. Remove infected plants. Control leafhopper vectors.

Prevention

Plant resistant varieties, control leafhoppers, avoid planting near infected fields

CoffeeCoffee Berry Disease (CBD)high

Symptoms

Dark sunken lesions on green berries, berry drop, brown spots on leaves

Treatment

Apply copper-based fungicides during wet season. Prune to improve air circulation.

Prevention

Plant resistant varieties (e.g. Ruiru 11), proper spacing, regular pruning

CoffeeCoffee Leaf Rusthigh

Symptoms

Yellow-orange powdery spots on undersides of leaves, leaf drop, reduced yield

Treatment

Apply fungicides containing copper or triazoles. Remove severely infected leaves.

Prevention

Plant resistant varieties, maintain shade levels, proper nutrition to boost plant health

TomatoLate Blighthigh

Symptoms

Water-soaked lesions on leaves and stems, white fungal growth in humid conditions, rotting fruit

Treatment

Apply fungicides (chlorothalonil, mancozeb). Remove infected plant parts immediately.

Prevention

Avoid overhead irrigation, ensure proper spacing, use resistant varieties

TomatoTuta Absoluta (Tomato Leaf Miner)high

Symptoms

Large blotch mines in leaves, black frass inside mines, damaged fruit and stems

Treatment

Use pheromone traps, apply recommended insecticides, remove infested leaves.

Prevention

Use netting in nurseries, rotate with non-solanum crops, release natural enemies

TomatoBacterial Wilthigh

Symptoms

Sudden wilting of leaves, brown vascular tissue when stem is cut, plant collapse

Treatment

No cure. Remove and destroy infected plants. Solarize soil before replanting.

Prevention

Use grafted seedlings, crop rotation (avoid solanaceous crops for 3+ years), improve drainage

BeansAngular Leaf Spotmedium

Symptoms

Angular grey-brown spots on leaves, dark lesions on pods, premature defoliation

Treatment

Apply copper-based fungicides. Use disease-free seeds.

Prevention

Plant resistant varieties, crop rotation, avoid dense planting

BeansAnthracnosemedium

Symptoms

Dark sunken lesions on pods, brown spots on leaves and stems, seed discoloration

Treatment

Remove infected plants. Apply fungicides (carbendazim, mancozeb).

Prevention

Use certified disease-free seeds, practice crop rotation, avoid working in wet fields

BananaPanama Disease (Fusarium Wilt)high

Symptoms

Yellowing of lower leaves, splitting of pseudostem, vascular discoloration, wilting

Treatment

No cure. Quarantine affected area. Use resistant varieties for replanting.

Prevention

Plant resistant varieties (e.g. FHIA hybrids), use tissue culture plantlets, avoid contaminated tools

BananaBlack Sigatokamedium

Symptoms

Dark streaks on leaves that enlarge to black spots, premature leaf death, reduced fruit size

Treatment

Apply fungicides (chlorothalonil, mancozeb). Remove severely affected leaves.

Prevention

Proper spacing, regular de-leafing, plant resistant varieties

PotatoLate Blighthigh

Symptoms

Water-soaked lesions on leaves, white fungal growth on undersides, brown rotting tubers

Treatment

Apply fungicides immediately (metalaxyl, mancozeb). Remove and destroy infected foliage.

Prevention

Use certified disease-free seed potatoes, hill soil around stems, avoid overhead irrigation

PotatoBacterial Wilthigh

Symptoms

Wilting of leaves, brown ring in cut tuber, ooze from cut stems, stunted growth

Treatment

No cure. Remove and destroy infected plants. Disinfect tools.

Prevention

Use certified clean seed, practice long crop rotation, plant resistant varieties