Image Number: 1440060

Descriptor:
Damage
Description:
Plants attacked by broomrape appear sickly, yellowish, and starved, but have few distinguishing symptoms. The presence of small white, yellow, or purple plants with blue flowers growing near the base of the affected tobacco plant is the most diagnostic feature of broomrape. Close examination should reveal that the parasitic plants' roots are attached to the tobacco plant. Stunting symptoms occur because the broomrape plant is taking much of the tobacco plant's food. Affected plants may be located singly or clustered. Several different Orobanche species may parasitize tobacco.
Image type:
Laboratory

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Image location:
United States

Subject

Kingdom: Plantae
Phylum: Magnoliophyta
Class: Magnoliopsida
Subclass: Asteridae
Order: Scrophulariales
Family: Orobanchaceae
Genus: Phelipanche
Subject: Phelipanche ramosa (L.) Pomel

Host

Kingdom: Plantae
Phylum: Magnoliophyta
Class: Magnoliopsida
Subclass: Asteridae
Order: Solanales
Family: Solanaceae
Genus: Nicotiana
Subject: Nicotiana tabacum (burley type) L.
Node Affiliation:
Image uploaded:
Monday, January 1, 1990
Image last updated:
Thursday, October 14, 2010