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Black spot (of Japanese pear) Alternaria alternata. Blister canker Helminthosporium papulosum. Blister disease Coniothecium chomatosporum: Blue mold rot Penicillium spp. Penicillium expansum. Botrytis spur and blossom blight Botrytis cinerea Botryotinia fuckeliana [teleomorph] Brown rot Monilinia fructicola Monilinia laxa. Cladosporium fruit rot
Download as PDF; Printable version ... Pages in category "Pear tree diseases" The following 21 pages are in this category, out of 21 total. ... This list may not ...
Schizothyrium pomi is a plant pathogen of the sooty blotch and flyspeck complex, infecting apple, pear and citrus trees and carnations. As of 2008 [update] it has been a presumed teleomorph of Zygophiala jamaicensis .
Only large outbreaks can cause defoliation, reduce fruit growth and cause early fruit loss. Additionally, they can act as vectors of microbial plant pathogens, such as phytoplasms. [2] C. pyrisuga has been confirmed as a vector of "Candidatus Phytoplasma pyri" which causes pear decline, a devastating disease of pear trees. [3]
Like many rusts, G. sabinae requires two different hosts to complete its life cycle from year to year. Juniper is the winter host and pear is the summer host. Spores (called aeciospores) are produced from the fungal lantern-shaped growths which protrude from the blisters on the underside of the pear leaf which become airborne and infect junipers.
Phytophthora syringae is an oomycete plant pathogen known to infect nursery plants, particularly apple and pear trees. [1] It infects plants through wounded areas and is most pathogenic during cold, wet weather.
Apple rubbery wood virus, also known as apple rubodvirus is a viral disease that causes apple rubbery wood in apple and pear cultivars. There are two varieties: ARWV 1 and ARWV 2. It gets its name from its distinctive effect that it has on its host trees, which show unusual flexibility in the stems and branches after a few years of infection.
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