![]() ![]() ![]() Oystershell Scale: This common armored scale insect causes injury to shade trees and shrubs.Fall Webworm: Appears from late summer through early fall and feeds on many species of deciduous trees and shrubs.Other tree insects that are more of a nuisance than a hazard include: All residents and businesses are obliged to follow the Pennsylvania Department of Agriculture quarantine guidelines to prevent the movement of this insect at any stage of its development. This invasive insect has spread throughout Pennsylvania since it was first discovered in 2014. Some can cause significant damage, such as the spotted lanternfly. Insect pests are a concern not only for agricultural and horticultural professionals – they also cause damage to trees and woody ornamentals in residential landscapes. Boxwood is prone to attack from the boxwood leafminer. Juniper diseases include cedar-apple rust, cedar-quince, cedar-hawthorn, and Japanese apple rust. ![]() Spruce trees can fall victim to two common fungal diseases that you can easily identify. For example, Beech diseases include bleeding canker, bark disease, and Laetiporus root rot. There are several popular trees and shrubs that are susceptible to certain diseases. We often think of lichens as a sign of disease, but they pose no danger to the trees on which they grow because they obtain their nutrients and water in other ways, rather than from the tree on which they’re found. These streaks found on the trunk are the result of a slimy liquid that oozes out of wounds or cracks. Bacteria Wetwood or Slime Flux: Symptoms of this disease that affects many mature trees, including elms and oak, are large light or dark vertical streaks.It can infect a wide range of herbaceous and woody plants. Crown Gall: Bacteria belonging to the genus and species Agrobacterium tumefaciens are the cause of crown gall.Galls on pines release their spores, which can only infect the leaves of oak trees. Gall Rusts: Two hosts are necessary for gall rust.Black Root Rot: A soil-inhabiting fungus called Thielaviopsis basicola is the cause of this type of root rot and branch dieback on various woody and herbaceous plants.It affects most Christmas tree species, true firs, Douglas-fir species, and eastern white pine. Phytophthora Root Rot: An accurate diagnosis of this disease requires laboratory analysis.Shoestring root rot is another name for this disease. Armillaria Root Rot: Various species of the fungus Armillaria are the cause of this disease.Fire Blight: This disease is caused by Erwinia amylovora and it attacks more than 75 species of trees and shrubs.Cankers: Living organisms such as fungi and bacteria, or nonliving factors including excessive temperatures or hail can cause this disease.Anthracnose: Many deciduous hardwoods are particularly susceptible to this leaf disease, which is caused by various species of the fungus Apiognomonia.Some of the most common diseases that can affect trees and shrubs include: The weather can also be very unforgiving, particularly in the winter when heavy snow and ice storms can cause major damage to your trees and shrubs. But it’s not just diseases that can injure trees and shrubs. It is possible to learn how to scout for fungus and bacteria and manage diseases. The process for diagnosing problems with your trees and shrubs includes identifying signs and symptoms. There are also certain diseases that you can only confirm with laboratory analysis. Some are very easy to identify, while others require expert knowledge, as there can be many look-alike diseases and hidden clues. Common Tree and Shrub Diseasesĭiagnosing diseases with trees and shrubs can be challenging. Find tips on dealing with rot, scale, blight, mold, gall, canker, and insect pests such as moths, caterpillars, worms, beetles, borers, spiders, and lanternflies. ![]() In this section, you’ll find information on weed management and control of trees and shrubs, including mulching, herbicides, and pesticides. Keeping your trees and shrubs healthy means you have to address pests, weeds, and diseases at the onset. ![]()
0 Comments
Leave a Reply. |
Details
AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |