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Rhytisma acerinum is a plant pathogen that commonly affects sycamores and maples in late summer and autumn, causing tar spot.Tar spot does not usually have an adverse effect on the trees' long-term health. [1]
The allergen can be given as an injection under the skin or as a tablet under the tongue. [6] Treatment typically lasts three to five years, after which benefits may be prolonged. [6] Allergic rhinitis is the type of allergy that affects the greatest number of people. [12] In Western countries, between 10 and 30% of people are affected in a ...
Urban planners and tree experts have tried for decades to keep streets and sidewalks clear of maple spinners, seed pods and fallen fruit, but these efforts may be leading to an increase in allergies.
The report looks at tree, grass and weed pollen scores, availability of board-certified allergists or immunologists and use of over-the-counter allergy medicine to determine the scores for each city.
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OAS is the result of cross-reactivity between antigens of tree or weed pollen and antigens found in certain fruits and vegetables. Therefore, OAS is only seen in people with seasonal pollen allergies, and mostly people who are allergic to tree pollen. [3] It is usually limited to ingestion of uncooked fruits or vegetables. [3]
The typical spring allergy season in Mississippi — at least for tree allergies — typically lasts from early March to May, he said. After that, the grass allergy season begins.
Maple bark disease, or maple bark stripper’s disease, is an uncommon condition caused by exposure to the spores of C. corticale. [5] The spores are hyper-allergenic and cause a hypersensitivity pneumonitis. [6] [7] The disease has been found among workers in the paper industry employed to debark, cut and chip maple logs. The symptoms include ...