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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 ...
Apple orchards are the ideal habitat for Dasineura mali, given their close association with cultivated apple trees; the species is an established pest of apple trees in New Zealand. [11] Apple trees offer ample food resources for D. mali larvae, while the managed nature of orchards provides shelter and protection from natural predators and ...
Branch attachment in common ash Fraxinus excelsior L. Figure 1: Anatomical drawing of the wood grain of a branch attachment in a tree. Initially branches are mechanically attached to the trunks of trees by forming interlocking wood grain patterns at the top of the joint, within what is known as 'axillary wood' (Fig. 1). [1]
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Burrknot on apple tree A2 rootstock, after plantation, side view. Burrknot is a tree disorder caused by the formation of adventitious root primordia. Although previously classified as disease, is now classified as a disorder, as it is no longer believed to be pathogenic. [1] It first looks like a smooth orange bulge growing from the stem or a ...
Wild apple trees usually reach age 10 to 12 in this period. [7] The number of fruits increase significantly as prominent secondary growth and branching take place. [7] Period III involves more growth and fruit bearing. [7] Wild apple trees enter regular fruiting and reach maximum fruit bearing in this period, and usually reach age 25 to 30. [7]
Peach leaf curl is a plant disease characterized by distortion and coloration of leaves and is caused by the fungus Taphrina deformans, [1] which infects peach, nectarine, and almond trees. T. deformans is found in the United States , Europe , Asia , Africa , Australia , and New Zealand . [ 2 ]
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related to: branching collar of apple tree leaves are curling