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Planting of less susceptible apple cultivars, horticultural practices that promote tree health and reduce fruit wetness hours, removal of overwintering diseased twigs and fruit, and fungicides Bitter rot of apple is a fungal disease of apple fruit that is caused by several species in the Colletotrichum acutatum and Colletotrichum ...
Viral diseases; Apple chlorotic leafspot genus Trichovirus, Apple chlorotic leafspot virus (ACLSV) Apple dwarf (Malus platycarpa) Apple stem pitting virus (ASPV) (? not US/CAN) Apple flat apple genus Nepovirus, Cherry rasp leaf virus (CRLV) Apple mosaic genus Ilarvirus, Apple mosaic virus (ApMV) genus Ilarvirus, Tulare apple mosaic virus (TAMV)
A branch collar is the "shoulder" between the branch and trunk of woody plants; the inflammation formed at the base of the branch is caused by annually overlapping trunk tissue. [1] The shape of the branch collar is due to two separate growth patterns, initially the branch grows basipetally, followed by seasonal trunk growth which envelops the ...
A. mali can still penetrate the stomates and hydathodes of leaves. [4] As with most pathogens, Alternaria mali resistance involves a gene-for-gene relationship. [4] Apple trees can recognize invading pathogens and mount a defense. [4] Often, the plant may be able to resist the pathogen, even though it has no genetic resistance to same.
Brown zonate leaf blight Ceuthospora lauri. Bud blight Phoma theicola. Charcoal stump rot Ustulina deusta [1] Ustulina zonata [1] [anamorph] Collar and branch canker Phomopsis theae. Collar rot Rhizoctonia solani Thanatephorus cucumeris [teleomorph] Copper blight Guignardia camelliae. Damping-off Cylindrocladium floridanum Calonectria kyotensis ...
Lemon tree with Phytophthora collar rot. Collar rot is a symptomatically described disease that is usually caused by any one of various fungal and oomycete plant pathogens. It is present where the pathogen causes a lesion localized at or about the collet between the stem and the root. The lesions develop around the stem eventually forming a ...
Venturia inaequalis is an ascomycete fungus that causes the apple scab disease. [1] ... until the leaves and fruit fall from the tree at the onset of winter.
Gymnosporangium juniperi-virginianae is a plant pathogen that causes cedar-apple rust. [1] In virtually any location where apples or crabapples and eastern red cedar (Juniperus virginiana) coexist, cedar apple rust can be a destructive or disfiguring disease on both the apples and cedars.
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