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Common plant diseases

Plant diseases in horticulture and agriculture are conditions or disorders that negatively affect the health and productivity of cultivated plants, including crops and ornamental plants. These diseases are caused by various pathogens, including fungi, bacteria, viruses, and nematodes, as well as environmental factors. Here's an overview of common plant diseases in both horticulture and agriculture. Looking for a specific species? Take a look at our plant disease overview.

Basal rot Fusarium oxysporum grown in petri dish

Fusarium spp.

Fusarium spp.
Black rot on carrot Alternaria radicina damage symptoms on carrot

Black rot of carrots

Alternaria radicina
Potato infected by blackleg disease Erwinia carotovora Pectobacterium carovora

Bacterial soft rot, bacterial stem rot

Pectobacterium carotovorum
Banana plant damage caused by Black Sigatoka disease Mycosphaerella fijiensis

Black sigatoka disease

Mycosphaerella fijiensis
Pepper damage caused by Stem and fruit rot of Capsicum Phytophthora capsici

Blight of pepper

Phytophthora capsici
Damage on tomato caused by powdery mildew

Powdery mildew

Erysiphe, Podosphaera, Oidium, Leveillula spp.
Black-leg of seedlings Pythium ultimum in petri dish

Damping-off

Pythium aphanidermatum
Tomato damage caused by Bacterial wilt of potato Ralstonia solanacearum

Bacterial wilt, brown rot

Ralstonia solanacearum
Loose Wheat Smut Ustilago nuda tritici

Loose smut of wheat

Ustilago tritici

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The latest news about diseases

Soil-borne diseases in row crops: A growing threat to crop health and yield

Soil-borne diseases in row crops: A growing threat to crop health and yield
Comprehensive vineyard protection against mealybugs

Comprehensive vineyard protection against mealybugs

Trial results show Trianum is your key to a healthy carrot crop
2024 global trial season highlights value of biological solutions in outdoor crops

2024 global trial season highlights value of biological solutions in outdoor crops

Cerall: 100% biological seed treatment against fungal diseases

European biocontrol trials successful – more plants, healthier crops

Koppert partners with European growers to demonstrate biocontrol solutions for outdoor crops
User story - “Empowering our strawberry plants through nutrition has helped us to become a more reliable supplier”

User story - “Empowering our strawberry plants through nutrition has helped us to become a more reliable supplier”
Trianum succesfully controls Fusarium in open field lettuce

Trianum succesfully controls Fusarium in open field lettuce
Daring approach to thrips at Porta Nova pays off

Daring approach to thrips at Porta Nova pays off

Grape Solutions per Growth Stage
All you need to know about Tiagan - Frequently Asked Questions - Control foliar grapevine diseases

All you need to know about Tiagan - Frequently Asked Questions - Control foliar grapevine diseases

Trial results Onion fly and Fusarium wilt
All you need to know about Cerall - Seed Treatment against Fungal Diseases

All you need to know about Cerall - Seed Treatment against Fungal Diseases

Cerall Brochure

Trianum Brochure

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