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Powdery mildew Erysiphe cichoracearum on green leaf of Jerusalem artichoke
Aesculus hippocastanum (horse chestnut) leaves
New flowers and leaves of the Montpellier maple (Acer monspessulanum)
Powdery Mildew on green leaf - fungal disease on tree.
The water droplets on tree leaves after rain
Mahonia fortunei
Asian soybean rust (Phakopsora pachyrizi) pustules on the under surface of a soybean leaf
Oak leaves on branches with Powdery mildew disease. Close-up of white spots on Oak leaves
Autumn forest
Fungus on the pear tree leaf (Gymnosporangium sabinae)(Birnengitterrost)
Fall Color Foliage Hits Cuyahoga Valley National Park
Cascade barberry leaves
This is a photograph of leaves with many holes from being eaten by insects summer day in Central Florida.
Branch of Sycamore maple (Acer pseudoplatanus) with green foliage with mines of Sawfly leafminer (Heterarthrus sp.), Belarus
Blackberry (Rubus fruticosus) flowers in Winter, home to insects.
Soybean field damaged by hail
Close up of summer tree
Chestnut leaf disease. Small spots cover the entire surface of green chestnut leaves. Diseases of plants and trees.
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rust disease in trees
Coffee rust is infection which occur on the coffee leaves. The first observable symptoms are small, pale yellow spots on the upper surfaces of the leaves than they get orange but can be red too, depends of the region. later the centers of the spots get brown and dry while the margins of the lesions continue to expand.
beautiful and amazing white green leaves as background
Dying leaves selective focus
The colors of autumn
leave
Rhododendron, azalea. Leaves with symptoms of fungal disease.
Leaf of a sandpaper plant, Ficus exasperata which is a popular provider of natural medicine and growing in the bottom of the rainforest jungle. The picture is taken in the Kinabatangan Wildlife Park in the north eastern part of Borneo
Pear Leaves Infected by Fungal Disease Pear Rust in Orchard. Macro.
Cork Oak (Quercus suber) tree. Luogosanto. Province of Sassari. Sardinia. Italy.
Free Images: "bestof:Disease: Madrone Leaf Blight (Mycosphaerella arbuticola) Host: Pacific Madrone (Arbutus menzeisii) Location: Burnt Ranch Campground Elevation: 1500 ft."
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