scholarly journals Herbicide options for managing competitive vegetation during the establishment of Pinus radiata and Pseudotsuga menziesii var. menziesii in Southland, New Zealand

2017 ◽  
Vol 47 (1) ◽  
Author(s):  
Carol A. Rolando ◽  
Michael S. Watt ◽  
Christine Todoroki ◽  
David Henley ◽  
Alan Leckie
Keyword(s):  
New Zealand ◽  
Pseudotsuga Menziesii ◽  
Pinus Radiata

Elatobium abietinum. [Distribution map].

1986 ◽  
Author(s):  
Keyword(s):  
North Carolina ◽  
New Zealand ◽  
Pseudotsuga Menziesii ◽  
Pacific Islands ◽  
District Of Columbia ◽  
West Germany ◽  
Distribution Map ◽  
Elatobium Abietinum ◽  
New Distribution ◽  
Distribution In Europe

Abstract A new distribution map is provided for Elatobium abietinum (Walker) [Hemiptera: Aphididae)] Spruce aphid. Attacks Picea spp., Pseudotsuga menziesii. Information is given on the geographical distribution in EUROPE, Austria, Czechoslovakia, Denmark, Faeroe Islands, Finland, France, East Germany, West Germany, Iceland, Italy, Netherlands, Norway, Poland, Sweden, Switzerland, United Kingdom, USSR, Latvian SSR, AUSTRALASIA and PACIFIC ISLANDS, Australia, Tasmania, New Zealand, NORTH AMERICA, Canada, British Columbia, Ontario, Quebec, USA, California, District of Columbia, North Carolina, Oregon, Utah, Washington, SOUTH AMERICA, Chile.

Scirrhia pini. [Descriptions of Fungi and Bacteria].

1973 ◽  
Author(s):  
E. Punithalingam
Keyword(s):  
New Zealand ◽  
Geographical Distribution ◽  
Pseudotsuga Menziesii ◽  
Forest Floor ◽  
Republic Of Georgia ◽  
Long Distance Dispersal ◽  
Long Distance ◽  
Nursery Stock ◽  
Airborne Conidia ◽  
Infected Material

Abstract A description is provided for Scirrhia pini[Mycosphaerella pini]. Information is included on the disease caused by the organism, its transmission, geographical distribution, and hosts. HOSTS: On pines including Pinus radiata and its hybrids, P. halepensis, P. canariensis, P. carbaea, P. ponderosa, P. nigra and others, Pseudotsuga menziesii (46, 2860), Larix decidua (49, 273). DISEASE: Dothistroma blight; red band. GEOGRAPHICAL DISTRIBUTION: North America (Canada, USA including Alaska), South America (Argentina, Brazil, Chile, Uruguay), Australasia and Oceania (New Zealand), Asia (Brunei, India, Japan), Africa (Ethiopia, Kenya, Malawi, Rhodesia, Swaziland, Tanzania, Uganda), Europe (Austria, France, Rumania, UK, USSR (Republic of Georgia), Yugoslavia) (CMI Map 419, ed. 2, 1970; record in CMI Herbarium). TRANSMISSION: By airborne conidia released and dispersed by a splash take-off mechanism for short distances. Long distance dispersal may be by transport of infected material, such as nursery stock and, under special conditions, clouds may carry sporal inoculum (43, 2100). Survival time of inoculum in the form of cast, infected foliage on the forest floor is limited to 2-6 months under moist conditions (50, 2003).

Phaeocryptopus gaeumanii. [Distribution map].

1991 ◽  
Author(s):  
Keyword(s):  
New York ◽  
British Columbia ◽  
New Mexico ◽  
New Zealand ◽  
North America ◽  
Rhode Island ◽  
New Hampshire ◽  
Pseudotsuga Menziesii ◽  
Distribution Map ◽  
New Distribution

Abstract A new distribution map is provided for Phaeocryptopus gaeumanii (Rohde) Petrak. Hosts: douglas fir (Pseudotsuga menziesii). Information is given on the geographical distribution in Australasia & Oceania, Australia, Victoria, New Zealand, Europe, Austria, Belgium, Denmark, France, Germany, Irish Republic, Italy, Netherlands, Romania, Sweden, Switzerland, UK, Yugoslavia, North America, Canada, British Columbia, Ontario, USA, Arizona, California, Connecticut, Maine, Massechusetts, New Hampshire, New Mexico, New York, Oregon, Rhode Island, Vermont, Washington, Michigan, Wisconsin, Pennsylvania, Minnesota.

scholarly journals Infection of Select Pinaceae and Cupressaceae Seedlings to Phytophthora pinifolia

2019 ◽  
Vol 20 (2) ◽  
pp. 106-111
Author(s):  
Timothy L. Widmer ◽  
Stephen C. Dodge
Keyword(s):  
United States ◽  
At Risk ◽  
Pseudotsuga Menziesii ◽  
Loblolly Pine ◽  
Pinus Radiata ◽  
Pinus Elliottii ◽  
The United States ◽  
Douglas Fir ◽  
Important Species ◽  
Monterey Pine

Phytophthora pinifolia caused a devastating disease on Monterey pine (Pinus radiata) in Chile. This pathogen has not been reported in the United States, but there is concern should it arrive. There is little information regarding other hosts besides Monterey pine that may be susceptible to this pathogen. In the present study, other potential hosts within the Pinaceae and Cupressaceae were inoculated with zoospores of P. pinifolia and observed for symptoms and infection after 4 weeks. Similar to Monterey pine, knobcone (Pinus attenuata), bishop (P. muricata), and ponderosa (P. ponderosa) pines were highly infectious, whereas several important species such as loblolly pine (P. taeda) and Douglas fir (Pseudotsuga menziesii) showed no infection. P. pinifolia was also not recovered from slash (Pinus elliottii) and eastern white (P. strobus) pines. This study is important because it demonstrates other economically important tree hosts are at risk by P. pinifolia, should it enter the United States.

scholarly journals The Extractives of the Mycorrhizas and Roots of Pinus Radiata and Pseudotsuga Menziesii

1969 ◽  
Vol 22 (6) ◽  
pp. 1425 ◽  
Author(s):  
WE Hills ◽  
N Ishikura
Keyword(s):  
Pseudotsuga Menziesii ◽  
Pinus Radiata ◽  
Outer Layer ◽  
Fast Growing

The amounts of acetone extractives from mycorrhizas and their polyphenolic portion were variable over a 6�month period. During August the amounts of extrac� tives and polyphenols were higher in slow� than in fast-growing Pinus radiata seedlings. The amount of extractives in the roots were greater than those in the mycorrhizas but in the latter the polyphenols were concentrated in the outer layer. The composition of the mycorrhizal and root extractives of P. radiata were very similar and in addition to resin contained catechin, two components that are very similar to 3,5,3',4'.tetrahydroxystilbene and one of its glucosides, and leucocyanidin polymers. The mycorrhizas of Pseudotsuga menziesii contain 15 components, includ� ing catechin, epicatechin, leucocyanidin polymers, and a polyene. With the exception of the latter the roots of Ps. menziesii contained the same components and in addition poriolin, poriol, taxifolin, taxifolin-3�glucoside, and quercetin.3.glucoside. Evidence supports the view that the polyphenols are formed in situ and appear to be formed in enhanced amounts in the tannin layer of mycorrhizas. Their possible role in the establishment of mycorrhizas is discussed.

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