Category Archives: Plant Pathogens

Plant Pathology (plant diseases)

B-Rated, Fungi, Plant Pathogens, Ratings

Cercospora hydrangeae Ellis & Everh. (1892) Cercospora leaf spot of hydrangea

California Pest Rating Profile for

Cercospora hydrangeae Ellis & Everh. (1892)
Cercospora leaf spot of hydrangea
Pest Rating: B

Comment Period: 03/19/2026 through 05/03/2026

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Posted by SK

A-Rated, Bacteria

Xanthomonas oryzae pv. oryzae (Ishiyama, 1922) Swings et al., 1990 Rice bacterial blight

California Pest Rating Profile for

FXanthomonas oryzae pv. oryzae (Ishiyama, 1922) Swings et al., 1990
Rice bacterial blight
Pest Rating: A

Comment Period: 02/25/2026 through 04/11/2026

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Posted by SK

A-Rated, Bacteria

Xanthomonas oryzae pv. oryzicola (Fang et al. 1957) Swings et al. 1990 bacterial leaf streak of rice

California Pest Rating Profile for

Xanthomonas oryzae pv. oryzicola (Fang et al. 1957) Swings et al. 1990
bacterial leaf streak of rice

 Pest Rating: A

Comment Period: 02/25/2026 through 04/11/2026

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Posted by SK

B-Rated, Fungi, Ratings

Fusarium phalaenopsidis Tsao et al., 2024 Phalaenopsis leaf yellowing

California Pest Rating Profile for

Fusarium phalaenopsidis Tsao et al., 2024
Phalaenopsis leaf yellowing
Pest Rating: B

Comment Period: 02/25/2026 through 04/11/2026

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Posted by SK

Bacteria, C-Rated, Plant Pathogens

Candidatus Phytoplasma trifolii Hiruki & Wang 2004 clover proliferation phytoplasma

California Pest Rating Profile for

Candidatus Phytoplasma trifolii Hiruki & Wang 2004 clover proliferation phytoplasma

 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

California Pest Rating Profile for

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

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

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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

California Pest Rating Profile for

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

Pest Rating: B

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

California Pest Rating Profile for

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