by U.S. Dept. of Agriculture, Forest Service, Pacific Northwest Region in [Portland, Or.?] .
Written in English
|Series||Forest disease management notes|
|Contributions||United States. Forest Service. Pacific Northwest Region|
|The Physical Object|
|Pagination||1 leaf :|
Spruce brooms are often associated with stem deformations, reduced increment growth, broken tops, and tree mortality. Rust brooms also serve as infection courts for decay fungi such as Phellinus pini contributing to increased levels of damage. Other information. The brooming symptoms caused by C. artcostaphyli could be confused with mistletoe. Spruce broom rust: By Paul E. Hennon (Alaska Region leaflet) Unknown Binding – January 1, by Paul E Hennon (Author) See all formats and editions Hide other formats and editions. The Amazon Book Review Author interviews, book reviews, editors' picks, and more. Author: Paul E Hennon. Spruce broom rust (Leaflet RTP) [Paul E Hennon] on *FREE* shipping on qualifying : Paul E Hennon. The article briefly mentions the parasitism of P. glauca and P. mariana in Alaska and Canada, but alter says something to the effect that it "primarily" infects the Southwest species, and contains no further mention fo the northern phenomenon. The prevalence of the rust broom in Alaska is high and far from "secondary.".
Spruce Broom Rust. Chrysomyxa arctostaphyli Dietel. Basidiomycotina, Uredinales, Coleosporiaceae. Hosts: In B.C. the aecial hosts of Chrysomyxa arctostaphyli are white, black, Norway, Engelmann, and Sitka spruce. Elsewhere it is reported on blue and red spruce. Rust or witches broom on spruce trees. Asked Aug , PM EDT. Hi my neighbour half mile away either had rust fungi or witches broom or both. The trees have been cut down, delimbed and taken to compose. I was planning to haul the trees to my place and cut/split up for firewood. If the witches' broom is caused by a genetic mutation, there will likely only be one cluster of twigs in the tree. Conifer trees, such as pine, fir, spruce and juniper, might be affected by a genetic mutation that causes witches' : Vanessa Richins Myers. Fir Broom Rust. Melampsorella caryophyllacearum Schroet. (=Melampsorella ceratsii (Pers.) Schroet.) Basidiomycotina, Uredinales, Pucciniastraceae. Hosts: In B.C., the aecial hosts of Melampsorella caryophyllacearum are amabilis fir, grand fir, and subalpine fir. Elsewhere in North America is is also found on balsam, noble, California red, Pacific sliver, and white firs.
Spruce needle rust damage may appear similar to that produced by spruce broom rust (Chrysomyxa arctostaphyli) and spruce needle cast (Lirula macrospora). The cast differs from the rusts in that it affects the previous year’s needles as well as those of the current year. Infected needles are straw coloured with distinctive elongate black Size: 2MB. Other species of leaf rust fungi are occasionally en- countered on spruce and true firs. While the fruiting appears similar, these fungi do not cause witches brooms. References. Anonymous. For. Insect & disease identification and management. Fir broom rust is rarely fatal, but it can result in growth reduction. The fungus lives on two hosts: the primary host is balsam fir and the secondary host is chickweed. A first type of spores is produced in spring on the two faces of needles contained in the broom. Infected needles are stunted and yellowish-green in colour. Spruce rust fungi or witches broom. Asked Aug , AM EDT awaiting the answers as I will have to remove them from my property as I brought some in and do not want to infect my spruce trees. Please respond within the next 12 hours or sooner as I only have a small window to get this done thank you.