What kind of fungus is on my apple tree?
Consult our Winter Moth page for more details. Canker is a fungal infection which enters tree wood at the site of existing damage, normally caused by bad pruning techniques although damage by woolly aphid (see above) can also allow the fungus to enter the tree. It can affect individual branches, stems and even more seriously the main tree trunk.
When do you see scabs on your apple trees?
It can spread to fruit and even twigs and branches. It first becomes noticeable when young leaves emerge in spring. Scab not only affects the leaves of apple trees it also affects the fruit so check the fruit section lower down this page to confirm that you have this fungal disease.
What kind of disease does an apple tree have?
Phytophthora collar rot (Phytophthora sp.) on a young apple tree. Leaves wilting but remain attached to the tree; reduced growth; early senescence; cankers at soil level, dark discoloration of bark which is slimy when wet.
What kind of fungus looks like a wiffle ball?
David Arora ( Mushrooms Demystified, 1986) describes this fungus as resembling a “red wiffle ball.” This specimen was photographed in Florida by Cono Cioffi. A n unusual tropical member of the ornate stinkhorn family (Clathraceae) is the starfish fungus ( Aseroe rubra ).
What kind of fungus does a fruit tree have?
White fungus (Sclerotium rolfsii) is a difficult-to-control fungus that can affect more than 500 plant species, including fruit trees, garden fruits and vegetables, bulbs, ornamental flowers and grasses.
Phytophthora collar rot (Phytophthora sp.) on a young apple tree. Leaves wilting but remain attached to the tree; reduced growth; early senescence; cankers at soil level, dark discoloration of bark which is slimy when wet.
What causes dead spots on an apple tree?
A disfigured trunk with sunken, dead patches. This usually occurs around wounds. An example of an apple canker. Your tree has apple canker, a fungal disease ( neonectria ditissima) that attacks the bark and creates sunken, dead areas. Cankers form in the spring, and they can kill off entire branches.
When to look for scabs on apple trees?
In mid-June, examine the leaves on your trees for scab lesions. Be very thorough, checking upper and lower leaf surfaces, leaves on the interior and exterior of the canopy, leaves close to the ground and those higher in the tree. You don’t need to spray fungicides again. You should continue to spray.
