Image Number: 1402005

Descriptor:
Symptoms
Description:
Soil-borne fungi are the main cause of damping-off. Symptoms first appear on the stem of seedlings as a brown to black rot. The decay extends up the stem and causes the seedlings to collapse. Roots of affected plants may remain healthy. Seedlings die in patches.
Image type:
Field

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Image location:
United States

Subject

Kingdom: Chromista
Phylum: Oomycota
Class: Oomycetes
Order: Peronosporales
Family: Pythiaceae
Genus: Pythium
Subject: Pythium spp. Pringsh.

Host

Kingdom: Plantae
Phylum: Magnoliophyta
Class: Magnoliopsida
Subclass: Asteridae
Order: Solanales
Family: Solanaceae
Genus: Nicotiana
Subject: Nicotiana tabacum (flue-cured type) L.
Node Affiliation:
Image uploaded:
Sunday, March 10, 2002
Image last updated:
Tuesday, October 26, 2010