摘要:

AbstractThis introductory paper reports on the pathogen's history in Europe and North America; the connection between the ascogenous stage,Sc1eroderris lagerbergiiand the conidial form,Brunchorstia pinea; and the disease symptoms in nurseries as well as in plantations.

ISSN:0300-1237    

DOI:10.1111/j.1439-0329.1972.tb00335.x

出版商:Blackwell Publishing Ltd    

年代:1972

数据来源: WILEY

摘要:

AbstractThis contribution deals with the distribution of the fungusScleroderris lagerbergiiin Europe and in North America based on our present‐day knowledge. A detailed bibliography of hostplants in the generaPinusandPiceais include

ISSN:0300-1237    

DOI:10.1111/j.1439-0329.1972.tb00336.x

出版商:Blackwell Publishing Ltd    

年代:1972

数据来源: WILEY

摘要:

AbstractThis communication deals with the damage caused byScleroderris lagerbergiiin nurseries as well as in plantations of Europe and North America. Roughly a two million dollar damage which easily may be higher, has been estimated by the author.

ISSN:0300-1237    

DOI:10.1111/j.1439-0329.1972.tb00337.x

出版商:Blackwell Publishing Ltd    

年代:1972

数据来源: WILEY

摘要:

AbstractThe epidemiology ofS. lagerbergiiis discussed in four parts: (1) mode of infection, (2) production of inoculum, (3) dissemination of inoculum, and (4) development of epidemics.Scleroderriscanker caused byS. lagerbergiiis described as the most serious disease present in red pine plantations in North America.

ISSN:0300-1237    

DOI:10.1111/j.1439-0329.1972.tb00338.x

出版商:Blackwell Publishing Ltd    

年代:1972

数据来源: WILEY

摘要:

AbstractIn this contribution some important factors as shading, humidity, frost and soil influencing the outbreak of an epidemic byScleroderris lagerbergiiunder Austrian conditions are discussed in detail.

ISSN:0300-1237    

DOI:10.1111/j.1439-0329.1972.tb00339.x

出版商:Blackwell Publishing Ltd    

年代:1972

数据来源: WILEY

摘要:

AbstractVarious pine species and provenances attacked byScleroderris lagerbergiiare reviewed with respect to their resistance.Pinus aristatais a new host. Introduced pine species may often become attacked if the ecological conditions in the new localities are different from those occurring under natural circumstances. Usually local provenances are more resistant than southern ones, but less resistant than more northern ones.

ISSN:0300-1237    

DOI:10.1111/j.1439-0329.1972.tb00340.x

出版商:Blackwell Publishing Ltd    

年代:1972

数据来源: WILEY

摘要:

AbstractThis final paper deals with the present‐day knowledge ofScleroderriscanker control. The author discusses the removal and burning of diseased plants and trees from neighbouring nurseries; spraying of nurseries with maneb or other chemical substances; the necessity of better silvicultural methods and heavy thinnings and finally the development of resistant tree

ISSN:0300-1237    

DOI:10.1111/j.1439-0329.1972.tb00341.x

出版商:Blackwell Publishing Ltd    

年代:1972

数据来源: WILEY

摘要:

AbstractThe effect of cuticular waxes on the infection rate of pathogenic fungi. 2. Rhytisma acerinum, Microsphaera alphitoides and Fusarium oxysporum. Cuticular waxes of Acer and Quercus species stimulate germination rate and germ‐tube development of certain foliar pathogens. The stimulation increases with host susceptibility. In the case ofRhytisma acerinum, the chemical composition of the leaf wax may be responsible for the host specificity of physiological races. Cuticular waxes showed a marked effect onFusarium oxysporumalso.In some cases, individual chemical components of different fractions seem to play a role in the mechanism of resistanc

ISSN:0300-1237    

DOI:10.1111/j.1439-0329.1972.tb00342.x

出版商:Blackwell Publishing Ltd    

年代:1972

数据来源: WILEY

摘要:

Books reviwed in this article:Wegler, R. (Hrg.):Chemie der Pflanzenschutz‐ und SchädlingsbekämpfungsmittelvanHaut, H., und Stratmann, H.:Farbtafelatlas über Schwefeldioxid‐Wirkungen an PflanzenEcology of Leaf surface Micro‐Organisms. Proceedings of an international Symposium held at the University of Newcastle upon Tyne, September 1970. Edited by T. F. Preeceand C. H. DickinsonKiraly, Z., Klement, Z., Solymosy, F., andVörös, J.:Methods in Plant Pathology with special reference to breeding for disease resistanceBörner, H.:Pflanzenkrankheiten und PflanzenschutzArx von, J. A.:The genera of fungi sporulating in

ISSN:0300-1237    

DOI:10.1111/j.1439-0329.1972.tb00343.x

出版商:Blackwell Publishing Ltd    

年代:1972

数据来源: WILEY