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Fungal disease

Fungal diseases are the most dramatic of plant problems. When plants can’t reach a balance with their environment, fungus take the upper hand.

Close-up of red thread fungal disease on grass blades with pink mycelium visible
Close-up of powdery mildew white coating on cucumber leaves in summer garden
Close-up of rose leaf showing black spot disease and powdery mildew coating in summer
Close-up of rose leaves showing black spot disease with yellow halos on dark green foliage
Close-up of rose leaves covered in black spots and yellowing edges in summer garden
Close-up of rose leaves showing black spot disease with yellowing and dark fungal lesions
Close-up of rose leaves covered in black spots and yellowing edges in summer garden
Damping off
Black necrosis on leaves with a yellow border are the marks of alternaria, or early blight, on tomato plants
Bean blight
Citrus foot rot, also called root rot, is severe but it can be treated
Phytophthora disease
Botrytis gray mold
Mushrooms that grow in the garden are often dangerous, but some are edible
Armillaria, honey fungus
Fruit tree winter treatments
Symptoms of fire blight include red, dry leaves
Bed of bedding vinca (Catharanthus roseus) in full flower, pink and white blooms over glossy dark foliage
Seedling dying
Dead tree

Techniques to save a poisoned tree

Treating diseases and pests
Moldy tomato next to a healthy one.
Scab
septoria plants
Spots of septoria infection on a tomato plant leaf.
Black spots on photinia red robin
Leaf spot on strawberry tree
Diseased tomatoes infected with tomato blight
Tar like black spots on maple leaf, yellowing and brown around the rim.

Black spots on maple leaves, treatment

Treating diseases and pests
Powdery mildew symptoms and treatments

Avoiding and treating powdery mildew

Treating diseases and pests
Disease killing cypress trees

Cypress canker

Treating diseases and pests
Canker on the branch of a fruit tree with a drop of sap.
Black spot on leaves
Peach leaf curl

Peach leaf curl, how to treat it?

Treating diseases and pests
European brown rot infecting a fruit
Ramial chipped wood is made from branches.
Scab on an apple

Scab, avoiding the disease

Treating diseases and pests