Pseudoperonospora cannabina. [Descriptions of Fungi and Bacteria].

Distribution Map ◽

Plant Parasite ◽

Water Films ◽

Black Spots ◽

Leaf Surfaces

Abstract A description is provided for Pseudoperonospora cannabina. Information is included on the disease caused by the organism, its transmission, geographical distribution, and hosts. HOSTS: Cannabis ruderalis, C. saliva. DISEASE: Downy mildew of hemp; an obligately biotrophic plant parasite. Brown to black spots appear on lower leaf surfaces, and become covered with a light violet to grey felt, with corresponding yellow necrotic patches on upper surfaces. GEOGRAPHICAL DISTRIBUTION: Asia; China (Beijing, Jilin, Liaoning, Nei Menggu, Shanxi, Yunnan), India, Japan, Pakistan, USSR (Azerbaijan, Kirghizia, Uzbekistan). Europe; France, Hungary, Italy, Poland, Portugal, Rumania, Switzerland, USSR (Estonia, Latvia, Lithuania, RSFSR, Ukraine). See IMI Distribution Map No. 478. TRANSMISSION: Presumably by sporangia dispersed in air, which germinate in water films on leaf surfaces, and by mycelium in infected seeds and planting stocks (42, 387).

Mycosphaerella citri. [Descriptions of Fungi and Bacteria].

IMI Descriptions of Fungi and Bacteria ◽

10.1079/dfb/20056400510 ◽

1976 ◽

Author(s):

A. Sivanesan

Keyword(s):

Living Cells ◽

Inoculum Source ◽

Light Yellow ◽

Black Spots ◽

Leaf Surfaces ◽

Yellow Orange ◽

Fallen Leaves ◽

Small Blister

Abstract A description is provided for Mycosphaerella citri. Information is included on the disease caused by the organism, its transmission, geographical distribution, and hosts. HOSTS: Citrus spp. DISEASE: Greasy spot of Citrus (black melanose or greasy melanose); greasy spot rind blotch has been proposed to cover all the symptoms on fruits (52, 1145). The leaves bear small blister like areas, mostly hypophyllous; these spots are at first a translucent, light yellow orange, becoming necrotic. In the field they resemble irregular flecks of dirty grease on both leaf surfaces. Most of the leaf may be affected and infected leaves fall. Very small black spots are caused on the fruits, forming an unsightly blemish; they are accentuated by delayed colouring of the rind due to retention of chlorophyll in the adjacent living cells (50, 2280; 52, 1145). GEOGRAPHICAL DISTRIBUTION: USA (Florida.). The disease was known for many years in USA before its aetiology was determined (50, 1231); and had been erroneously attributed to Cercospora citri-grisea Fisher (40, 752). A similar (or identical) disease in Japan (48, 155) had been attributed to Mycosphaerella horii Hara (see Tanaka et al. ; Yamada). In Florida M. citri was considered to differ from M. horii (50, 1231; 51, 3364); the former has smaller ascospores which are not constricted at the septa. TRANSMISSION: Air-borne ascospores from fallen leaves are thought to be the most important inoculum source (50, 1231).

Peronospora antirrhini. [Descriptions of Fungi and Bacteria].

IMI Descriptions of Fungi and Bacteria ◽

10.1079/dfb/20056400685 ◽

1981 ◽

Author(s):

S. M. Francis

Keyword(s):

Downy Mildew ◽

Seed Transmission ◽

Lower Surface ◽

Flowering Plants ◽

Antirrhinum Majus ◽

High Humidity ◽

Secondary Infections ◽

Leaf Surfaces ◽

Definite Proof

Abstract A description is provided for Peronospora antirrhini. Information is included on the disease caused by the organism, its transmission, geographical distribution, and hosts. HOSTS: Antirrhinum majus, A. nuttallianum, Misopates orontium. DISEASE: Downy mildew of antirrhinum. This is mainly a disease of seedlings and young plants. The infection is systemic and affected plants appear stunted and pale yellowish-green. The leaves are curled inwards and droop down. Conidiophores develop on the lower surface forming a fine white to purple down. In heavy infections the down is found on both leaf surfaces and also on the stems. The growing point may be killed and then plants often break from the base and produce several new shoots. Conidia can cause secondary infections on the leaves of older plants especially in conditions of high humidity. These appear as pale yellowish spots. GEOGRAPHICAL DISTRIBUTION: Worldwide, see CMI Map No. 222 ed. 2, 1971. TRANSMISSION: Seed transmission by oospores was tentatively suggested by Yarwood (1947). Moore & Moore (1952) refer to circumstantial evidence but say there is no definite proof. Peronospora antirrhini is not recorded as a seed pathogen by Richardson (1979) but Neergaard (1977) points out that for seed-borne infection of a downy mildew to be effective all that is needed is a mere trace of the fungus on the seed. As Yarwood (1947) indicates, terminal infections of flowering plants could easily contaminate seed.

Bothynoderes punctiventris. [Distribution map].

Distribution Maps of Plant Pests ◽

10.1079/dmpp/20056600358 ◽

1976 ◽

Author(s):

Keyword(s):

Host Plants ◽

Balearic Islands ◽

Distribution Map ◽

New Distribution ◽

Distribution In Europe

Abstract A new distribution map is provided for Bothynoderes punctiventris(Germ.) (Cleonus punctiventris[Bothynoderes punctiventris] Germ.) (Col., Curculionidae). Host Plants: Beta spp. Information is given on the geographical distribution in EUROPE (excl. USSR), Austria, Balearic Islands, Bulgaria, Czechoslovakia, France, Germany, Greece, Hungary, Italy, Poland, Romania, Spain, Switzerland, Yugoslavia, ASIA (excl. USSR), China, Iran, Turkey, USSR.

Ramularia armoraciae. [Distribution map].

10.1079/dmpd/20056500229 ◽

1984 ◽

Author(s):

Keyword(s):

North America ◽

Distribution Map ◽

Armoracia Rusticana ◽

Jammu And Kashmir ◽

Abstract A new distribution map is provided for Ramularia armoraciae Fuckel. Hosts: Horse-radish (Armoracia rusticana). Information is given on the geographical distribution in AFRICA, Kenya, ASIA, India (Jammu and Kashmir), USSR (Kirghizia; Siberia), EUROPE, Austria, Belgium, Britain, Bulgaria, Czechoslovakia, Denmark, Finland (Saccardo), Germany, Italy (Ferraris), Netherlands, Norway, Poland, Romania, Sweden, USSR (Latvia; Lithuania; Estonia), NORTH AMERICA, Canada, USA.

Sphaceloma arachidis. [Distribution map].

10.1079/dmpd/20056500231 ◽

1975 ◽

Author(s):

Keyword(s):

South America ◽

Arachis Hypogaea ◽

Distribution Map ◽

Abstract A new distribution map is provided for Sphaceloma arachidis Bitanc. & Jenkins. Hosts: Groundnut (Arachis hypogaea). Information is given on the geographical distribution in SOUTH AMERICA, Brazil.

Elsinoe australis. [Distribution map].

10.1079/dmpd/20056500055 ◽

1976 ◽

Author(s):

Keyword(s):

South America ◽

Rio De Janeiro ◽

Rio Grande ◽

Santa Fe ◽

Rio Grande Do Sul ◽

Distribution Map ◽

Santa Cruz ◽

New Distribution ◽

Distribution In Europe

Abstract A new distribution map is provided for Elsinoe australis Bitancourt & Jenkins. Hosts: Citrus. Information is given on the geographical distribution in EUROPE, Italy (Sicily), SOUTH AMERICA, Argentina (Santa Fe, Tucuman), Bolivia (Santa Cruz), Brazil (Minas Gerais, Rio Grande do Sul, Rio de Janeiro, Sao Paulo), Paraquay, Uruguay.

Rhagoletis cingulata. [Distribution map].

Distribution Maps of Plant Pests ◽

10.1079/dmpp20056600159 ◽

1963 ◽

Author(s):

Keyword(s):

North America ◽

Fruit Fly ◽

Distribution Map ◽

Abstract A new distribution map is provided for Rhagoletis cingulata (Lw.) (Dipt., Trypetidae) (Cherry Fruit-fly, of North America). Hosts: Cherry, cultivated and wild; other species of Prunus. Information is given on the geographical distribution in NORTH AMERICA, Canada, U.S.A.

Phaeoisariopsis bataticola. [Distribution map].

10.1079/dmpd/20056500617 ◽

1990 ◽

Author(s):

Keyword(s):

Puerto Rico ◽

North America ◽

South America ◽

Dominican Republic ◽

Central America ◽

Sweet Potato ◽

West Indies ◽

Distribution Map ◽

Abstract A new distribution map is provided for Phaeoisariopsis bataticola (Cif. & Bruner) M.B. Ellis. Host: sweet potato (Ipomoea spp.). Information is given on the geographical distribution in NORTH AMERICA, USA, Florida, CENTRAL AMERICA & WEST INDIES, Cuba, Dominican Republic, Puerto Rico, SOUTH AMERICA, Venezuela.

Alternaria linicola. [Distribution map].

10.1079/dmpd/20056500659 ◽

1993 ◽

Author(s):

Keyword(s):

North America ◽

Linum Usitatissimum ◽

Distribution Map ◽

Linum Usitatissimum L ◽

Alternaria Linicola ◽

Irish Republic ◽

Abstract A new distribution map is provided for Alternaria linicola Groves & Skolko. Hosts: Linum usitatissimum, L. grandiflorum. Information is given on the geographical distribution in AFRICA, Kenya, Tanzania, EUROPE, Denmark, France, Irish Republic, Sweden, UK, England, Scotland, NORTH AMERICA, Canada.

Acleris gloverana. [Distribution map].

Distribution Maps of Plant Pests ◽

10.1079/dmpp/20056600507 ◽

1989 ◽

Author(s):

Keyword(s):

British Columbia ◽

North America ◽

Distribution Map ◽

Abstract A new distribution map is provided for Acleris gloverana (Walsingham) Lepidoptera: Tortricidae Black-headed budworm. Attacks Abies, Picea, Pseudotsuga, Tsuga, Lara Information is given on the geographical distribution in NORTH AMERICA, Canada, Alberta, British Columbia, Yukon, USA, Alaska, California, Colorado, Idaho, Montana, Oregon, Utah, Washington, Wyoming.