Collar Rot in Tobacco Greenhouses
TB06 - Tobacco Disease Note 6
W. A. Gutierrez,  H. D. Shew, and T. A. Melton


Factor that favor the presence of primary inoculum

Figure 17.  Clippings next to infected plants and susceptible weeds could ensure the formation of sclerotia which is the primary source of inoculum for collar rot.
Figure 18.  Disposing clippings beside greenhouses will promote collar rot.

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Published by North Carolina Cooperative Extension Service
Distributed in furtherance of the Acts of Congress of May 8 and June 30, 1914. Employment and program opportunities are offered to all people regardless of race, color, national origin, sex, age, or disability. North Carolina State University at Raleigh, North Carolina A&T State University, U.S. Department of Agriculture, and local governments cooperating.

Revised July 2001 by Plant Disease and Insect Clinic