Search results
Results from the WOW.Com Content Network
Fusarium circinatum is a fungal plant pathogen that causes the serious disease pitch canker on pine trees and Douglas firs (Pseudotsuga menziesii).The most common hosts of the pathogen include slash pine (Pinus elliottii), loblolly pine (Pinus taeda), Monterey pine (Pinus radiata), Mexican weeping pine (Pinus patula), and Douglas fir. [1]
Cronartium ribicola is a species of rust fungus in the family Cronartiaceae that causes the disease white pine blister rust. Other names include: Rouille vésiculeuse du pin blanc (French), white pine Blasenrost (German), moho ampolla del pino blanco (Spanish). [2]
[10] [11] The pathogen often makes Douglas fir trees unsalable as Christmas trees and affects the Christmas tree farming industry. [10] Douglas firs are also affected by Phaeocryptopus gaumanni which causes Swiss needle cast. [6] Red band needle blight is a fungal disease which affects coniferous trees, particularly pine, with a worldwide ...
Regarding how phytoncides affect a plant's immunity, for example, 1 hectare of pine forest will release approximately 5 kg of volatile phytoncides into the atmosphere in one day, reducing the amount of microflora in the air and essentially sterilizing the atmosphere among the forest, containing only about 200-300 bacterial cells/m 3. This ...
Pine-pine gall rust, also known as western gall rust, is a fungal disease of pine trees. It is caused by Endocronartium harknessii (asexual name is Peridermium harknessii ), an autoecious , endocyclic , rust fungus that grows in the vascular cambium of the host. [ 1 ]
Pinus serotina, the pond pine, black bark pine, bay pine, marsh pine, or pocosin pine, [2] is a pine tree found along the Southeastern portion of the Atlantic coastal plain of the United States, from southern New Jersey south to Florida and west to southern Alabama. [3] Pond pine distribution may be starting to spread west towards Mississippi ...
Get AOL Mail for FREE! Manage your email like never before with travel, photo & document views. Personalize your inbox with themes & tabs. You've Got Mail!
One well researched resin present in Pinaceae is oleoresin. Oleoresin had been found to be a valuable part of the conifer defense mechanism against biotic attacks. [32] They are found in secretory tissues in tree stems, roots, and leaves. [32] Oleoresin is also needed in order to classify conifers. [32]