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Dutch elm disease was spread by elm bark beetles, yet the tree mortality was caused by a pathogen. [4] Chestnut blight is a fungus spread through wind dispersal and rain splatter; the blight traveled up to 50 miles in a year by natural means. [5] Insect pests, once they reach the adult phase, have the ability to disperse by flight.
Woodboring beetles most often attack dying or dead trees. In forest settings, they are important in the turnover of trees by culling weak trees, thus allowing new growth to occur. [ 3 ] They are also important as primary decomposers of trees within forest systems, allowing for the recycling of nutrients locked away in the relatively decay ...
The emerald ash borer (Agrilus planipennis), also known by the acronym EAB, is a green buprestid or jewel beetle native to north-eastern Asia that feeds on ash species (Fraxinus spp.). Females lay eggs in bark crevices on ash trees, and larvae feed underneath the bark of ash trees to emerge as adults in one to two years.
The goldspotted oak borer is just 14 miles from the Santa Monica Mountains' 600,000 oak trees and threatens to devastate forests throughout California, harming wildlife and increasing fire risks.
The invasive beetle that kills ash trees has traveled to new areas in Texas. Texas A&M Forest Service confirmed last week that the emerald ash borer is now in five counties in North and Central Texas.
A number of newly occurring and fast spreading invasive insect pests and diseases such as Polyphagous Shot Hole Borer (PSHB) (Euwallacea spp.), [21] which can vector plant pathogenic fungus Fusarium euwallaceae, [22] and Sudden Oak Death (SOD) caused by an Oomycete Phytophthora ramorum, establish the use of endotherapy as the most efficient tree protection technique in landscapes and urban ...
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