Chemical treatments, pruning, fertilization and watering are the keys to preventing and treating birch tree diseases. Damaged birch trees pose a hazard because they are susceptible to dropping branches. in North America. Named after their attractive and unusual white bark, silver birch (Betula pendula) are elegant trees with a weeping habit that grow more than 12 metres (40 feet) tall. This can reduce the lifespan of a birch in your backyard to less than 20 years. The major birch tree diseases which can hamper their growth are – leaf blister, birch anthracnose, birch canker and wetwood/slime flux. Birch trees are all deciduous. And better management depends on better under standing of the problem. Birch Insects And Diseases. The weeping birch tree is a variety of the European white birch. Birch leafminers (Profenusa thomsoni and Fenusa pumila) are sawflies, which are closely related to bees and wasps.They are among the most common insect pests affecting Birch trees (Betula spp.) If a large canker is on the main trunk, the tree may ultimately need to be replaced. My Father's house has nine mature silver birch trees in the front garden. A troublesome pest for a birch tree is the Birch Leaf Miner (Fenusa pusilla). Optimum conditions for growth. Early warning signs of damage are a yellowing and thinning of foliage at the upper crown of the tree and D-shaped holes in the trunk where the borer larvae have made entry. By Gabriel Popkin Nov. 14, 2019 , 3:00 PM. First, cultivated birch trees often get inadequate irrigation, insufficient sun, and, given those stress factors, they suffer from diseases and pest damage. Disease Symptoms Pathogen/Cause Management; Bark disease: Circular to horizontal elliptic cankers form on the bark. If you know the name of the tree pest or disease affecting your trees, ... Birch (Betula species) Asian longhorn beetle, Citrus longhorn beetle: C. In an event in the Eastern United States and Canada in the 1930s and 1940s, no causal agent was found, but the wood-boring beetle, the bronze birch borer, was implicated in the severe damage and death of the tree that often followed. The Birch is botanically called Betula pendula. Like the lethal bronze birch borer, it is. Planted birch appears to be susceptible to birch dieback, which is caused by two fungal pathogens – Marssonina betulae and Anisogramma virgultorum. As large areas of bark are affected, the tree is girdled and killed. Still remember that when a trunk canker develops, the tree may begin to compartmentalize off the area by sealing wood cells off around the canker. The tree likes Sun to half-shade at the location and the soil should be sandy to loamy, dry - moist. Cylindrosporium and Septoria cause small spots with no borders and Colletotrichum […] River Birch Tree Diseases. Birch Insects And Diseases. Adult Japanese beetles feed on flowers and leaves of various trees and shrubs, such as linden, crabapple, birch, and rose. Birch leafminer A troublesome pest for a birch tree is the Birch Leaf Miner (Fenusa pusilla). Since the trees are susceptible to fungal disease and borer and other insect infestations, close monitoring is a must. To control canker disease on trees, cut off the affected branch or limb using proper pruning methods. The first indication of a birch tree that’s infested with the bronze birch borer is yellowing, sparse foliage in the crown. Of course, as with any tree, certain diseases and infections can take control that requiring efficient and effective treatment. Melanconium betulinum attacks the tree when it has been weakened by drought conditions, winter kill or phenoxy-acetic acid herbicide exposure causing progressive dieback. The purpose of this paper is to outline briefly the major diseases of birch. Native to Europe, the birch leafminer, Fenusa pusilla, first appeared in Connecticut in 1923. The weeping birch tree is commonly affected by two pests, the birch leafminer and the bronze birch borer. Like the lethal bronze birch borer, it is the larvae of the birch leaf miner which causes damage by burrowing into birch leaves in search of nutrients. Heart Rot Disease Heart rot tree disease can infect many deciduous trees, such as beech, birch, cedar, dogwood, and maple trees, that are improperly pruned, left with broken branches, or damaged by fire, insects, or animals. Get to work diagnosing tree diseases with our pictoral summary of 10 common tree diseases. They can suffer from several diseases, characterised by cankers in bark, leaf spots, premature leaf fall and die back. The leaves are ovoid and the flowers are yellow. Birch dieback – Wikipedia Fungal diseases from various pathogens cause leaf spots, blotches and blisters on birch trees.