Phytophthora primulae. [Descriptions of Fungi and Bacteria].

1985 ◽  
Author(s):  
D. J. Stamps
Keyword(s):  
New Zealand ◽  
Geographical Distribution ◽  
Root Rot

Abstract A description is provided for Phytophthora primulae. Information is included on the disease caused by the organism, its transmission, geographical distribution, and hosts. HOSTS: Primula, parsley. DISEASE: Brown core root rot of Primula. GEOGRAPHICAL DISTRIBUTION: Australasia (New Zealand), Europe (Denmark, UK). TRANSMISSION: Soil-borne carried from Primula seedling boxes to the field in soil adhering to roots or in roots of young plants (32, 315).

Micronectriella nivalis. [Descriptions of Fungi and Bacteria].

1971 ◽  
Author(s):  
C. Booth
Keyword(s):  
New Zealand ◽  
West Africa ◽  
Soil Water ◽  
Geographical Distribution ◽  
Root Rot ◽  
Total Loss ◽  
Head Blight ◽  
Snow Mould

Abstract A description is provided for Micronectriella nivalis[Monographella nivalis]. Information is included on the disease caused by the organism, its transmission, geographical distribution, and hosts. HOSTS: The fungus is a serious pathogen of cereals (barley, wheat, rye) and grasses, especially in temperate regions where it may cause total loss of winter sown wheat and rye (43, 1873; 48, 3456). Tropical records, especially those on rice, need to be confirmed. DISEASE: Pre-emergence blight, root rot and occasionally head blight of cereals. Snow mould of turf. GEOGRAPHICAL DISTRIBUTION: Europe, extremely widespread, USSR, Japan, Australia, New Zealand, N.E. and N.W. USA and Canada. Records have also been cited of its occurrence in India and West Africa (CMI Map 432, ed. 1, 1967). TRANSMISSION: By seed, soil, water and in summer by aerial dissemination of ascospores (48, 1628).

Pestalotiopsis funerea. [Descriptions of Fungi and Bacteria].

1976 ◽  
Author(s):  
J. E. M. Mordue
Keyword(s):  
New Zealand ◽  
Geographical Distribution ◽  
Root Rot ◽  
Stem Blight

Abstract A description is provided for Pestalotiopsis funerea. Information is included on the disease caused by the organism, its transmission, geographical distribution, and hosts. HOSTS: On Coniferae, including Araucaria, Cedrus, Chamaecyparis, Cryptomeria, Cupressocyparis, Cupressus, Dacrydium, Ginkgo, Juniperus, Libocedrus, Pinus, Pseudotsuga and Thuja. DISEASE: Leaf and stem blight, occasionally canker or girdling, dieback and root-rot. GEOGRAPHICAL DISTRIBUTION: Europe (UK, Italy, Romania, Spain, Netherlands, Belgium); Africa (S. Africa, Kenya, Rhodesia, Tanzania, Zaire, Zambia); Asia (USSR, Japan); Australasia (Australia, New Zealand); America (Canada, Ecuador, USA, Bermuda). TRANSMISSION: Has been found in seed samples (35, 643) and isolated from soil, but no detailed studies have been reported.

Pythium erinaceum. [Descriptions of Fungi and Bacteria].

1991 ◽  
Author(s):  
G. Hall
Keyword(s):  
Triticum Aestivum ◽  
New Zealand ◽  
Geographical Distribution ◽  
Plant Pathogen ◽  
Root Rot ◽  
Moist Soil

Abstract A description is provided for Pythium erinaceum. Information is included on the disease caused by the organism, its transmission, geographical distribution, and hosts. HOSTS: Lupinus sp., Triticum aestivum. DISEASE: Possibly associated with a root rot complex of wheat; a facultatively necrotrophic plant pathogen. GEOGRAPHICAL DISTRIBUTION: Australasia & Oceania; Australia (NSW), New Zealand. TRANSMISSION: Presumably by zoospores in moist soil. Oospores may act as perennating structures.

Mycocentrospora acerina. [Descriptions of Fungi and Bacteria].

1977 ◽  
Author(s):  
B. C. Sutton
Keyword(s):  
New Zealand ◽  
Host Range ◽  
Geographical Distribution ◽  
Leaf Spot ◽  
Root Rot ◽  
Crown Rot ◽  
Wide Host Range ◽  
Water Borne

Abstract A description is provided for Mycocentrospora acerina. Information is included on the disease caused by the organism, its transmission, geographical distribution, and hosts. HOSTS: A very wide host range (29, 364); parsley, celery, carrot and parsnip are among the most important economically. DISEASE: Pansy leaf spot; celery storage rot; root rot, canker and black crown rot of parsnip; liquorice rot of carrot. GEOGRAPHICAL DISTRIBUTION: Europe (UK, Ireland, Germany, Czechoslovakia, Netherlands, Poland, Rumania, USSR, Denmark); N. America (USA, Canada); Australia, New Zealand. TRANSMISSION By splash dispersed conidia; these are viable for short periods only (26, 133). Survival for longer periods is by infected debris and chlamydospores in the soil (23, 324; 45, 681; 52, 899). Water-borne spread is possible (49, 1526) and transmission on pansy seeds has been demonstrated (51, 422).

Cylindrocladium scoparium. [Descriptions of Fungi and Bacteria].

1973 ◽  
Author(s):  
C. Booth
Keyword(s):  
New Zealand ◽  
North America ◽  
South America ◽  
Geographical Distribution ◽  
Root Rot ◽  
West Indies ◽  
Woody Plants ◽  
Damping Off ◽  
Seedling Blight ◽  
Seedling Root

Abstract A description is provided for Cylindrocladium scoparium. Information is included on the disease caused by the organism, its transmission, geographical distribution, and hosts. HOSTS: A very wide host range, mainly of woody plants, including conifers, but also extending to beet, strawberry and watermelon. Particularly notable as a pathogen of young eucalyptus and pine. DISEASE: Damping-off, seedling root-rot, seedling blight. GEOGRAPHICAL DISTRIBUTION: Worldwide, including North America (USA, Canada), South America (Brazil, Argentina), West Indies (Jamaica), Australia and New Zealand, Asia (India, Japan, Malaysia), Africa. TRANSMISSION: By microsclerotia and infected debris in the soil and by airborne, splash-dispersed conidia.

Pyrenochaeta lycopersici. [Descriptions of Fungi and Bacteria].

1973 ◽  
Author(s):  
E. Punithalingam
Keyword(s):  
New Zealand ◽  
Lycopersicon Esculentum ◽  
Geographical Distribution ◽  
Root Rot ◽  
Natural State ◽  
Stem Base ◽  
Corky Root ◽  
Quarterly Review ◽  
Brown Root Rot ◽  
Pyrenochaeta Lycopersici

Abstract A description is provided for Pyrenochaeta lycopersici. Information is included on the disease caused by the organism, its transmission, geographical distribution, and hosts. HOSTS: Lycopersicon esculentum; also on Capsicum and Nicotiana. DISEASE: Brown root rot or corky root of tomato (Lycopersicon esculentum). In Europe it seems to occur only in crops grown in close succession under glass. The plants lack vigour, become stunted and give poor yields. There is a cortical rot of the fine and medium sized roots; larger roots become corky with swollen, cracked and furrowed bark, almost canker-like; finally the stem base may rot. GEOGRAPHICAL DISTRIBUTION: Canada, Belgium, France, Germany, Italy, Netherlands, New Zealand, Rumania, Scandinavia, UK (24, 78; 42, 491; 50, 3178; Last et al, NAAS Quarterly Review 62: 68, 1963). TRANSMISSION: Soil-borne. This fungus occurs in a sterile mycelial state within corky root of tomatoes and pycnidia have not been found in the natural state.

Cochliobolus cynodontis. [Descriptions of Fungi and Bacteria].

1990 ◽  
Author(s):  
A. Sivanesan
Keyword(s):  
South Africa ◽  
Puerto Rico ◽  
New Zealand ◽  
Papua New Guinea ◽  
Geographical Distribution ◽  
Cynodon Dactylon ◽  
New Guinea ◽  
Leaf Blight ◽  
Bermuda Grass

Abstract A description is provided for Cochliobolus cynodontis. Information is included on the disease caused by the organism, its transmission, geographical distribution, and hosts. HOSTS: Cynodon dactylon (very common on this host), other Cynodon spp., Agropyron, Ammi, Arecastrum, Axonopus, Calathea, Chamaedorea, Chrysalidocarpus, Dactyloctenium, Eleusine, Hordeum, Ipomoea, Lycopersicon, Muhlenbergia, Oryza, Panicum, Pennisetum, Poa, Rhapis, Secale and Zea. DISEASE: Leafspot of Bermuda grass end other crops, leaf blight end brown patches of turf, lawns end golflinks. GEOGRAPHICAL DISTRIBUTION: Argentina, Australia, Bangladesh, Brazil, Brunei, Egypt, Ghana, Guinea, India, Israel, Iraq, Italy, Japan, Kenya, Malaysia, New Zealand, Pakistan, Papua New Guinea, Puerto Rico, Spain, South Africa, Sudan, Tanzania, Trinidad, Turkey, USA, USSR, Venezuela, Yugoslavia and Zambia. TRANSMISSION: By wind-borne conidia and seed-borne.

Podosphaera leucotricha. [Descriptions of Fungi and Bacteria].

1967 ◽  
Author(s):  
J. N. Kapoor
Keyword(s):  
South Africa ◽  
New Zealand ◽  
North America ◽  
Powdery Mildew ◽  
South America ◽  
Geographical Distribution ◽  
Prunus Persica ◽  
Podosphaera Leucotricha

Abstract A description is provided for Podosphaera leucotricha. Information is included on the disease caused by the organism, its transmission, geographical distribution, and hosts. HOSTS: On Malus spp., chiefly on M. pumila (apple), peach (Prunus persica), quince (Cydonia ualgaris) and Photinia spp. also attacked (Hirata, 1966). Also reported on almond fruit (43, 2544). DISEASE: Powdery mildew of apple. GEOGRAPHICAL DISTRIBUTION: Africa (? Kenya, Rhodaia, South Africa, Tanzania); Asia (China, India, Israel, Japan, U.S.S.R.); Australia and New Zealand, Europe (widely distributed) North America (Canada and U.S.A.); South America (Argentina, Brazil, Chile, Colombia, Peru). (CMI map 118). TRANSMISSION: Overwinters on host as dormant mycdium in blossom buds. The role of deistothecia in overwintering is doubtful. Spread by wind-borne conidia (Anderson, 1956).

Acroconidiella tropaeoli. [Descriptions of Fungi and Bacteria].

1968 ◽  
Author(s):  
M. B. Ellis
Keyword(s):  
New Zealand ◽  
Geographical Distribution ◽  
New Guinea

Abstract A description is provided for Acroconidiella tropaeoli. Information is included on the disease caused by the organism, its transmission, geographical distribution, and hosts. HOSTS: On Tropaeolum spp. DISEASE: Causes severe losses in nasturtium seed fields in coastal California. It produces a yellowing and death of the leaves after mid season and this reduces yield. The fungus occurs sometimes on stems and is present on seeds but is most abundant on leaves where it forms characteristic irregular or subcircular brownish or purple spots visible on both sides. These are up to 1 cm diam. or often larger through confluence, the centres later shrivel and the surrounding tissues may form a broad yellow margin. GEOGRAPHICAL DISTRIBUTION: Argentina, Australia, Ceylon, Ethiopia, Guatemala, Haiti, India, Jamaica, Kenya, Mauritius, New Guinea, New Zealand, Tanzania, Uganda, U.S.A. TRANSMISSION: The pathogen is borne internally and externally in up to 93% of commercial nasturtium 'seed', persisting for at least 3 years in the form of thick-walled mycelium in the pericarp and seed.

Physoderma alfalfae. [Distribution map].

1973 ◽  
Author(s):  
Keyword(s):  
British Columbia ◽  
New Zealand ◽  
North America ◽  
South America ◽  
Medicago Sativa ◽  
Geographical Distribution ◽  
Distribution Map ◽  
New Distribution

Abstract A new distribution map is provided for Physoderma alfalfae (Pat. & Lagerh.) Karling. Hosts: Lucerne (Medicago sativa) and Medicago spp. Information is given on the geographical distribution in ASIA, India (Punjab), Iran, Israel, Pakistan, AUSTRALASIA & OCEANIA, Australia, New Zealand, EUROPE, Belgium, Britain, Cyprus, Czechoslovakia, Denmark, France, Germany, Greece, Italy, Netherlands, Portugal, Romania, Sweden, Switzerland, NORTH AMERICA, Canada (British Columbia), Mexico, USA, SOUTH AMERICA, Argentina, Chile, Ecuador, Peru.

Sign in / Sign up

Export Citation Format

Share Document