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Browse by Author: Yara Rosado Rivera
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Black Shank of Tobacco

By: Yara Rosado Rivera, Lindsey Thiessen Tobacco Disease Information

Black shank is an economically important disease of tobacco that threatens production in North Carolina. This factsheet provides information about the causal organism (Phytophthora nicotianae) and its management.

Brown Spot of Tobacco

By: Marilú Salazar, Yara Rosado Rivera, Lindsey Thiessen Tobacco Disease Information

Brown spot is a disease of increasing importance in flue cured tobacco production.This disease is most severe on mature or otherwise injured tobacco.

Corn Rusts: Common and Southern Rust

By: Lindsey Thiessen, Yara Rosado Rivera, Jonathan Kinczyk Corn Disease Information

Common and southern corn rusts may affect corn in North Carolina. Management for each is specific to the rust, and proper identification is necessary to determine the appropriate tools to use.

Root Knot Nematode of Cotton

By: Lindsey Thiessen, Yara Rosado Rivera Cotton Disease Information

Cotton root knot nematodes are capable of causing significant losses to cotton production. In addition to direct damage, root knot nematode can allow for secondary pathogens to impact yields, as well. This publication describes root knot nematodes and their management in cotton.