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Fisheye rot Butlerelfia eustacei = Corticium centrifugum. Flyspeck Schizothyrium pomi Zygophiala jamaicensis [anamorph] Fruit blotch, leaf spot and twig canker Phyllosticta solitaria: Glomerella leaf spot Glomerella cingulata Colletotrichum gloeosporioides [anamorph] Gray mold rot = dry eye rot, blossom-end rot Botrytis cinerea
Botryosphaeria obtusa is a plant pathogen that causes frogeye leaf spot, black rot and cankers on many plant species. [1] On the leaf it is referred to as frogeye leaf spot; this phase typically affects tree and shrubs. In fruit such as the apple, cranberry and quince, it is referred to as black rot, and in twigs and trunks it causes cankers. [1]
Similarly to apple trees, crown rots of strawberries caused by P. cactorum can be partially diagnosed by cutting the crown of the plant and observing brown vascular tissues, and root rots by brown or black stunted roots. [7] Leather rot of strawberry is an additional disease affecting strawberry plants, with P. cactorum being the causal agent ...
This is because cutting too much of the tree can cause it to grow a lot of sprouts, or new branches, which will make the tree focus more on regrowing branches and less time on apple production ...
Bitter rot of apple is a fungal disease of apple fruit that is caused by several species in the Colletotrichum acutatum and Colletotrichum gloeosporioides species complexes. [1] It is identified by sunken circular lesions with conical intrusions into the apple flesh that appear V-shaped when the apple is cut in half through the center of the ...
Botryosphaeria stevensii (Apple sphaeropsis) is a fungal plant pathogen that causes cankers on several tree species including apple and juniper as well as causing cankers on grape vines. [3] It causes branch dieback , possibly affecting a large portion of the tree canopy, and if severe it can kill entire plants.
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On the apple tree, the infections occur on leaves, fruit and young twigs. [4] The brightly colored spots produced on the leaves make it easy to identify. Small, yellow-orange spots appear on the upper surfaces of the leaves, anytime from April to June. [5] These spots gradually enlarge and turn orange or red and may show concentric rings of color.
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