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Cercosporella rubi is a plant pathogenic fungus which causes blackberry rosette, [1] a disease that is also known as double blossom [2] or witches' broom [3] of blackberry.In infected plants, the symptoms that C. rubi causes are double blossoms as well as witches' brooms.
Phragmidium violaceum is a plant pathogen native to Europe, Africa, and the Middle East. It primarily infects Rubus species. It has been used in the biological control of invasive blackberry species in Chile, Australia, and New Zealand. In 2005, it was discovered growing on Himalayan blackberry plants in Oregon.
Miscellaneous diseases and disorders; Alpine mosaic in Rubus Alpine mosaic agent, (a graft-transmissible agent of unknown identity) Blackberry sterility Cause unknown Brown berry disease (of black raspberry) Cause unknown Crumbly berries Various causes: poor pollination, genetic, virus, insect, nutrition, winter injury, water relations
When to prune, when to plant, when to scalp. Home & Garden. Lighter Side
The rows between blackberry plants must be free of weeds, blackberry suckers and grasses, which may lead to pests or diseases. [36] Fruit growers are selective when planting blackberry bushes because wild blackberries may be infected, [36] and gardeners are recommended to purchase only certified disease-free plants. [37]
Rubus pensilvanicus, known commonly as Pennsylvania blackberry, is a prickly bramble native to eastern and central North America from Newfoundland south to Georgia, west as far as Ontario, Minnesota, Nebraska, Missouri, and Arkansas. The species is also established as a naturalized plant in California. [2] [3]
An experimental nasal spray has helped clear toxic protein buildups in the brains of mouse models of Alzheimer's. Its developers believe the spray may help delay Alzheimer's by at least a decade.
Hapalosphaeria deformans is an ascomycete fungus. It is the causal organism of Stamen Blight of caneberry. [1]: 25 It is a common disease in Pacific Northwest of North America (especially west of the Cascades, especially in Oregon), elsewhere in Canada, Denmark, Germany, Great Britain, Ireland, and Spain.