Chrysomyxa arctostaphyli is an obligate parasite, and as with most other rust fungi diseases, spruce broom rust requires two different host plants to carry out its life cycle and is therefore referred to as heteroecious. The primary or aecial host of the rust is spruce (Picea spp.), and the secondary or telia host of the … See more Spruce broom rust or yellow witches' broom rust is a fungal plant disease caused by the basidiomycete fungus known as Chrysomyxa arctostaphyli. It occurs exclusively in North America, with the most concentrated … See more The intense odor given off from the spermogonia on the needles in the spring attract insects, which cross-fertilize the fungus. This fertilization allows for aecia to form and in turn produce aeciospores. Spruce broom rust is common in the western United … See more Spruce broom rust is an interesting pathogen in terms of its importance in forest management programs. Many spruce trees do not … See more Since this pathogen is a heteroecious rust, C. arctostaphyli has a primary and an alternate host upon which it produces different fruiting … See more Spruce broom rust is named from the so-called “witches brooms” which form as a result of infected needles on the spruce host. The “brooms” … See more In general, spruce broom rust in considered more of a cosmetic issue, and in many cases no serious management measures are required. However, potential economic … See more WebSpruce Broom Rust. United States Department of Agriculture Forest Service Leaflet R10-TP-100 August 2001. Spruce broom rust, caused by the fungus Chrysomyxa arctostaphyli Diet., is one of the most conspicuous diseases of white, black, and Sitka spruce trees in Alaska. The disease affects trees in Interior, Southcentral, and several parts of …

Spruce broom rust

WebJan 29, 2024 · (Chrysomyxa arctostaphyli, a rust; Phyllosticta amicta; Cryptostictis arbuti) KINNIKINNICK (Arctostaphylos uva-ursi) Leaf Spot [Dasyschypha sp., Mycosphaerella gaultheriae (very common), Pestalopezia sp., and several Phyllosticta spp. ] SALAL (Gaultheria shallon) WebChrysomyxa arctostaphyli . Diet. Fir broom rust: Melampsorella caryophyllacearum. Schroct. Hosts--Chrysomyxa arctostaphyli: Conifer host= Engelmann spruce; alternate host= Kinnikinnick (Arctostaphylos uva-ursi). Melampsorella caryophyllacearum: Conifer host= grand, white, red and subalpine firs; alternate hosts= chickweeds (Stellaria spp. and can dogs eat instant mashed potatoes

Pest categorisation of Chrysomyxa arctostaphyli EFSA

WebApr 11, 2016 · 1 Spruce Broom Rust (Chrysomyxa arctostaphyli) 2 Host; 3 Cause; 4 Symptoms; 5 Impact of Disease; 6 Life Cycle of the Pathogen; 7 Management … WebFeb 26, 2024 · Chrysomyxa arctostaphyli causes the perennial yellow witches' broom on blue spruce branches; Arctostaphylos uva-ursi hosts one stage of the fungus. Armillaria mellea and Inonotus tomentosus both … WebAll. Symptoms. Picea glauca showing witches' brooms in late summer, when covered with spermogonia and mature aecia. Witches' broom of spruce, taken in early summer, when … fish stapler