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0 0 Unnamed spotting

Unnamed spotting

by carolyn_bMaine, USA

Diseased

0 0 Spotting

Spotting

by georgek16Connecticut, USA

disease but black knot

0 0 Tree with disease

Tree with disease

by auntieannaTomahawk, Wisconsin, USA

The edge of a forest, right by a lake.

0 1 Kentucky Redbud

Kentucky Redbud

by smcrenshawKentucky, USA

A big tree and was quite beautiful last ...

0 0 Black Knot Disease

Black Knot Disease

by beaker98Geneseo, Illinois, USA

The area where I found this contains many

3 3 Spotting

Spotting

by DANIELNoblesville, Indiana, USA

0 0 Beech

Beech

by CloudDwellerUSA

A young beech tree in a forest where beech ...

0 0 Gall tree disease

Gall tree disease

by JenniferReneeDekkerMichigan, USA

Black fungus or growth on tree branch.

0 0 Peach Leaf Curl

Peach Leaf Curl

by RebeccaRussellMustinCalifornia, USA

This is on a peach tree. Some kind of

0 0 Phytophthora Fungi

Phytophthora Fungi

by Emma California, USA

This is an eucalyptus tree which is

4 0 The Jelly Ear

The Jelly Ear

by SanciaMatthyssenTexas, USA

Growing on a diseased oak

0 0 Spotting

Spotting

by SeanNessAlameda, California, USA

Pretty sure that this is an apple tree in ...

0 0 Unknown Mushroom

Unknown Mushroom

by ForestDragonVirginia, USA

This large gilled mushroom showed up on a neighbor's

0 0 Spotting

Spotting

by Busy-bMarietteBronPretoria, Gauteng, South Africa

10 out of the 20 trees suffer with this ...

0 0 Spotting

Spotting

by sarahholt107Mobile, Alabama, USA

Massive tree, 40-50 feet high, not an oak. ...

0 0 Spotting

Spotting

by sarahxandersonGrandview Heights, Ohio, USA

-orange stuff comes out. Is this a fungus,

0 1 Spotting

Spotting

by jonath24Moncton, Canada

Maple leaves that have some kind of

2 2 Asexual Gall

Asexual Gall

by RebeccaRussellMustinCalifornia, USA

Fungus or disease on an oak

1 0 Dwarf Mistletoe

Dwarf Mistletoe

by am523California, USA

Unknown fungus or disease growing out of ...

0 0 Oleaceae

Oleaceae

by natsumi.watanabeYokadouma, ES, Cameroon

All leafs has already gone. At the bottom of the

0 0 Spotting

Spotting

by Joseph CHIEF REDEARTHUttarakhand, India

This tree looks like a Rhododendron sp. and ...

0 0 Spotting

Spotting

by HideeHenSt. John's, Newfoundland and Labrador, Canada

I think this is called a purple leaf rose

0 3 Spotting

Spotting

by lorainedgMapleton, Utah, USA

This appears to be a disease. I'm not sure ...

0 0 Ulmus americana - white elm or American elm

Ulmus americana - white elm or American elm

by amandamatlesNew York City, New York, USA

Double serrated broad leaves, yellow in fall, 40 ft tall

0 1 Blackwood (Acacia melanoxylon)

Blackwood (Acacia melanoxylon)

by cathysinozVictoria, Australia

Small to large tree, short life span, prone ...

0 1 Coral spot fungus

Coral spot fungus

by Marta RubioTexeiraHuldenberg, Vlaanderen, Belgium

Nectria cinnabarina is a plant pathogen that causes cancers on many

0 0 Spotting

Spotting

by GinniBaggettRadfordDecatur, Georgia, USA

This was on an oak tree, and it seemed ...

0 0 Black Knot Fungus

Black Knot Fungus

Vancouver, British Columbia, Canada

It was on my plum tree, it is a

1 2 Blowfly

Blowfly

by SckelCariacica, ES, Brazil

tree, the shade, moist environment.

0 1 Blister Gall

Blister Gall

by JacobHeightsMississippi, USA

Nodules forming on leaves of various trees ...

0 1 Spotting

Spotting

by Guy BirdRockford, Illinois, USA

Large brown dots show up on the maple trees ...

0 1 Spotting

Spotting

by Matthew HammondConway, Arkansas, USA

Galls? Tree

1 0 American Elm

American Elm

by andoverbiologyAndover, Massachusetts, USA

Elm Disease.

0 0 Spotting

Spotting

by Freakmode

This is the trunk of my magnolia tree. It ...

0 0 American Elm

American Elm

Texas, USA

American elm has long been very popular as a street or avenue

5 1 Coral spot

Coral spot

by MauronBosnia and Herzegovina

opportunity via wounds in the tree or ...

0 2 Wattle pig - 2 (Fruit-tree Root Weevil)

Wattle pig - 2 (Fruit-tree Root Weevil)

by LeubaMelbourne, Victoria, Australia

A pale broad-nosed weevil about 15 mm long.

2 6 Twig Wilter

Twig Wilter

by TizMbombela Local Municipality, Mpumalanga, South Africa

Maximum 20mm bug with respectable "shoulder pads" :)

0 0 Swedish Columnar Aspen

Swedish Columnar Aspen

by nicole.martensAlberta, Canada

This slender Swedish Columnar Aspen (SCA) is a broad leaf deciduous

2 0 Cedar-Hawthorn Rust

Cedar-Hawthorn Rust

by ForestDragonNiagara Falls, USA

This fungus infects several species of

7 2 Asian Citrus Psyllid

Asian Citrus Psyllid

by CindyBinghamKeiserEscondido, California, USA

diseases of citrus; causing leaves to ...

2 2 Asian Citrus Psyllid

Asian Citrus Psyllid

by CindyBinghamKeiserEscondido, California, USA

This is the lightest color I've seen on this species but it may have recently ...

1 0 Evergreen Tree (Conifer)

Evergreen Tree (Conifer)

by sshell11Greensboro, North Carolina, USA

These are tall evergreen trees commonly ...

1 2 Cedar apple Rust (the orange stuff)

Cedar apple Rust (the orange stuff)

by smutnee80New York, USA

and fruit distortion and abortion. The effects of these

0 0 American Elm

American Elm

Nigeria

This elm is native to eastern North America and, prior to the introduction of ...

0 2 Spotting

Spotting

by recordgamerr

Growing on young pine tree - was smoother ...

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