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homeguides.sfgate.com/troubleshoot-pear-tree-disease-leaves-53759.html

Fungus of one sort or another can cause spots on leaves that may eventually kill the leaf itself, but not the pear tree. Anthracnose appears as brown spots or elongated discoloration on the leaves ...

www.gardeningknowhow.com/edible/fruits/pear/fixing-pear-tree-problems.htm

If you have an orchard with pear trees, expect to encounter pear tree diseases and pear tree insect problems. The two are related, since insects can spread or facilitate other pear tree issues. As a gardener, you can prevent many problems with pears by appropriate spraying and pruning. Read on for ...

www.gardeningknowhow.com/edible/fruits/pear/pear-tree-diseases.htm

Home-grown pears are really a treasure. Unfortunately, pear trees are susceptible to quite a few easily spread diseases that can wipe them right out if left untreated. Learn more about pear tree diseases and treatment in this article.

www.countytreeservice.com/3-common-problems-that-affect-bradford-pear-trees

Leaf spot is another common issue that can affect your Bradford pear tree. Caused by fungus, leaf spot can be prevented by controlling moisture in the tree. Remove interior branches that are connecting or growing haphazardly. This will improve air flow through the tree, reducing moisture while preventing fungal growth. ...

www.garden.eco/pear-tree-diseases

The leaves brown, blossoms wilt, and fruit falls off prematurely. Clean and sanitize all pruning tools before using them on your trees. Cut out all affected parts of the tree and burn them. Remove all the mulch from around the base of an affected tree and burn it. Stony pit is another viral disease that affects pear trees.

www.gardenfocused.co.uk/fruitarticles/pears/pest.php

This article explores all the common pests and diseases which may affect your pear tree. ... The above picture shows aphids on a blackcurrant leaf but they look exactly the same on a pear tree leaf. Aphids first attack the undersides of leaves and this causes them to curl inwards on themselves. If left untreated the leaves will turn brown at ...

www.garden.eco/bradford-pear-tree-diseases

Bradford Pear Tree Diseases ... For the most part, leaf spot won’t harm the fruit or the tree. In severe cases, it causes damage to foliage and branches. Trees exhibit small to large spots on the tops and undersides of leaves. Spots range in color from bright raspberry red to a rusty brown. Because it’s mostly a cosmetic issue there’s no ...

gardenerdy.com/flowering-pear-tree-diseases

A flowering pear tree is a valuable landscaping tree, and is susceptible to diseases like fire blight and leaf spot. Gardenerdy explains the occurrence of such diseases, and also suggests some preventive measures that can be taken to avoid infections.

homeguides.sfgate.com/black-leaves-damage-pear-trees-33992.html

Pear tree leaves, fruit, twigs and branches can become infected by fungus. Some of the symptoms of fungal infection are black spots on leaves or stems, early leaf drop or curling and blackening of ...

www.rhs.org.uk/advice/profile?pid=236

Pear rust is a disease caused by the rust fungus Gymnosporangium sabinae, which causes bright orange spots on the upper surfaces of pear leaves in summer and early autumn. This fungus attacks both pears and junipers. In fact it needs both plants in order to complete its life cycle.