Widely Prevalent Plant Pathogen Status – This map is based on data from the Widely Prevalent Fungi Project, a collabaration between USDA APHIS PPQ and . Twenty seven (27) isolates of Alternaria porri were isolated from diseased leaf samples collected from different onion growing regions of Bangladesh and. PDF | Effect of different culture media, pH levels and natural substrates on mycelial growth and sporulation of Alternaria porri and Stemphylium.

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For more information, see the main Onion ipmPIPE website or the other resources provided in this wiki. Run Zhang 1 and Dr. Alternaria porri From Bugwoodwiki. Avoid dense plantings of late maturing varieties. You can prevent the information generated by the Google cookie about your use of our Sites from being collected and processed by Google in the future by downloading and installing Google Analytics Opt-out Browser Add-on for your current web alhernaria.

Lesions are elongate, small, sunken and whitish with a purple center. Privacy policy About Bugwoodwiki Disclaimers.

Encyclopedia of Life EOL. Altermaria Matches exactly Value is undefined. Bernard Jabas 1 and Dr. Chemical controls are most effective when combined with sound cultural practices.

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Alternaria porri

Open the calendar popup. See below for more information. This is used when first reloading the page. No other cookies than the ones mentioned above are used on our websites. Concentric light and dark zones later appear over part or all of the purple area. Contact your local extension service for the recommendations that are appropriate to your state. Matches exactly Value is undefined. Specimens and strains links: Common Names and Diseases.

Practice a three-year or longer rotations to non-hosts such as small grains and corn.

Lily Eurwilaichitr and Dr. Purple altwrnaria is caused by the fungus Alternaria porri. Obligate or homotypic synonyms: They are sent to a computer by website operators or third parties. Leaves wilt and die. Pairwise identification Polyphasic identification. We use cookies in a very limited number of scenarios that are all present to help the users to have an easier experience.

If you would like to know more about cookies and how they work, please visit www. Older leaves and plants are more susceptible to infection. Copper fungicides are registered for control of purple blotch, but are not highly effective.

Pairwise sequence porrl Polyphasic identifications.

Phytopathological survey of Santo Domingo, Catalogue of Life CoL. Any condition s All condition s. Click alternaris the language titles to launch them.

Sanctioned by Sanctioning name Validated by Type specimen or ex type More specimens Human pathogenicity code Plant pathogenicity code Code toxicity. Google Wikimedia Wikipedia Wikispecies. The information is depersonalized and is displayed as numbers, meaning it cannot be traced back to individuals. Plant high quality seed and transplants free from the purple blotch pathogen.


It can infect all above-ground parts of the plant in addition to the bulb. The fungus is disseminated within and among fields by splashing water and wind, and overwinters in and on infested crop debris. Apply adequate but not pporri nitrogen fertilizer before bulb initiation. Alternaria porri Ellis Cif.

Alternaria porri – Bugwoodwiki

This page was last modified This Add-on is available at http: Current name Classification Type name Basionym Obligate or homotypic synonyms Anamorph synonyms Teleomorph synonyms Facultative or heterotypic synonyms Type of organism. Bulbs can be infected at harvest if the pathogen enters neck wounds. This will help to protect your privacy.

More Spanish version Dr.

Alternaria porri Ellis Cif. Contact our curators Dr. Storage symptoms appear as a dark yellow to wine-red spongy rot of outer or inner scales of bulbs. ;orri pathogen may also be seed-borne. Reduce over- wintering and survival of the pathogens by eliminating culls, onion debris, and volunteers.

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