Category Archives: Plant Pathogens

Plant Pathology (plant diseases)

Bacteria, C-Rated, Plant Pathogens

Candidatus Phytoplasma trifolii Hiruki & Wang 2004 clover proliferation phytoplasma

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California Pest Rating Proposal for

Candidatus Phytoplasma trifolii Hiruki & Wang 2004 clover proliferation phytoplasma

Current Pest Rating: None
Proposed Pest Rating: C

Comment Period: 02/19/2026 through 04/05/2026

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Posted by SK

C-Rated, Fungi, Plant Pathogens, Ratings

Fusarium asiaticum O’Donnell, Aoki, Kistler & Geiser 2004

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California Pest Rating Proposal for

Fusarium asiaticum O’Donnell, Aoki, Kistler & Geiser 2004
Current Pest Rating: Q
Proposed Pest Rating: C

Comment Period: 02/06/2026 – 03/23/2026

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Posted by SK

C-Rated, Fungi, Ratings

Colletotrichum spinaciae Ellis & Halsted Spinach anthracnose

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California Pest Rating Proposal for

Colletotrichum spinaciae Ellis & Halsted
Spinach anthracnose
Current Pest Rating: None
Proposed Pest Rating: C

Comment Period: 01/07/2026 – 02/21/2026

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Posted by SK

B-Rated, Bacteria, Ratings

Pseudomonas cannabina pv. cannabina (Sutic & Dowson) Bull, Manceau, Lydon, Kong, Vinatzer & Fischer-Le Saux 2010 Leaf spot of hemp

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California Pest Rating Proposal for

Pseudomonas cannabina pv. cannabina (Sutic & Dowson)
Bull, Manceau, Lydon, Kong, Vinatzer & Fischer-Le Saux 2010
Leaf spot of hemp

Comment Period: 01/07/2026 – 02/21/2026

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Posted by SK

B-Rated, Bacteria, Ratings

Pseudomonas syringae pv. tagetis (Hellmers 1955) Young et al. 1978 Tagetes leaf spot

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California Pest Rating Proposal for

Pseudomonas syringae pv. tagetis (Hellmers 1955) Young et al. 1978
Tagetes leaf spot
Current Pest Rating: None
Proposed Pest Rating: B

Comment Period: 01/07/2026 – 02/21/2026

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Posted by SK

B-Rated, Fungi, Plant Pathogens

Zasmidium citri-griseum (F.E. Fisher) U. Braun & P.W. Crous 2014 Greasy spot of citrus

California Pest Rating Profile for

Zasmidium citri-griseum (F.E. Fisher) U. Braun & P.W. Crous 2014
Greasy spot of citrus
Pest Rating: B

Comment Period: 12/11/2025 – 01/25/2026

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Posted by SK

B-Rated, Fungi, Plant Pathogens, Ratings

Phytophthora phaseoli Thaxt. (1889) Downy mildew of beans

California Pest Rating Profile for

Phytophthora phaseoli Thaxt. (1889) Downy mildew of beans
Pest Rating: B

Comment Period: 11/26/2025 – 01/10/2026

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Posted by SK

C-Rated, Fungi, Plant Pathogens, Ratings

Gymnotelium blasdaleanum (Dietel & Holway) Arthur 1934 Pacific Coast pear rust

California Pest Rating Profile for

Gymnotelium blasdaleanum (Dietel & Holway) Arthur 1934
Pacific Coast pear rust
Pest Rating: C

Comment Period: 10/17/2025 – 12/01/2025

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Posted by SK