by North Central Forest Experiment Station, Forest Service, U.S. Dept. of Agriculture in [Saint Paul, Minn.] .
Written in English
|Statement||Thomas H. Nicholls and Darroll D. Skilling.|
|Series||Research paper NC -- 110.|
|The Physical Object|
|Pagination||11 p. :|
|Number of Pages||11|
Canadian Plant Disease Survey, Volume 69 Control of lophodermium needle cast of Scots pine Christmas trees in British Columbia D. J. Ormrod‘ Needle cast of Scots pine caused by Lophodermium pinastri was first recognized as a major problem in North America in Serious losses were noted in British Columbia in and a control experiment. Lophodermium needle cast, caused by pathogenic species of Lophodermium, occurs on numerous conifers. Other species of Lophodermium are saprophytes and occur only on dead needles. Some of the more common species of Lophodermium, along with their hosts and pathogenic relationship, are shown in table Control of Lophodermium needlecast disease in nurseries and Christmas tree plantations / Thomas H. Nicholls and Darroll D. Skilling. By Thomas H. Nicholls. Abstract. 11 p. Topics: Scots pine--Diseases and pests., Lophodermium. Publisher: [Saint Paul, Minn Author: Thomas H. Nicholls. To reduce Lophodermium needlecast, plant long needle Scotch pines that are more resistant such as those from Germany, Belgian, Poland and Czechoslovakia; remove the branches of pine from cut stumps where spores are likely to be produced; and, make sure all the older pines have been removed from windbreaks near nurseries or plantations.
effectiveness of fungicides for control of this disease. 38/44 Lophodermium Needlecast Lophodermium seditiosum€ Scotch pine, red pine, Austrian, and Eastern White Pine Choose seed sources that are less susceptible and disease free nursery stock. Avoid prolonged periods of moisture and promote good air circulation by irrigating in the morning. Hunt. Lophodermium Needle Cast of Pines in Nurseries and Plantations. Forestry Canada, Forest Insect and Disease Survey, Forest Pest Leaflet No. 52 4p. Introduction The name "needle cast" refers to a condition in coniferous trees where a sudden, severe loss of needles occurs. Although it can be caused by insects, climatic factors such as. The two most common needle blights Michigan State University Extension educators and specialists find on pines in Christmas tree plantations are Dothistroma and brown spot needle blights. Symptoms of these diseases are very similar and knowing the tree species and when you are seeing the symptoms can help you identify which one you may have. FOLIAGE DISEASES 66 Lophodermium Needle Cast of Pines 67 Darroll D. Shilling Brown Spot Needle Blight 69 seedling diseases, seedling disease control (nursery.) The use of trade and company names is for the benefit of the forest tree nurseries must play the key role in this program by.
Nicholls TH, Skilling DD () Control of Lophodermium needlecast disease in nurseries and Christmas tree plantations. USDA Forest Service Research Paper NC, p 11 Ortiz-García S, Gernandt DS, Stone JK, Johnston PR, Chapela IH, Salas LR, Alvarez B () Phylogenetics of Lophodermium from pine. PDF | Evaluation of various fungicides against needle blight disease of pine was carried out at Sheri Kashmir University of Agriculture Sciences and | Find, read and cite all the research you. Figure 1. Scots pines in a Christmas tree nursery with characteristic defoliation by Lophodermium needle cast beginning on lower branches (Dr. D.H. Scott, Purdue Univ.). NEEDLE BLIGHTS AND NEEDLE CASTS OF PINES Pines in the Midwest are susceptible to several needle blights and casts that are caused by fungi. Scotch pines infected with this disease have needles with brown spots surrounded by yellow margins, yellow needles or brown needles, especially at the bottom of the tree. Lophodermium is a severe needlecast of Scotch pine, which in some cases can cause the entire tree to brown in .