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Browse by Author: Yara Rosado Rivera
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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.

Asian Soybean Rust

By: Yara Rosado Rivera, Lindsey Thiessen Soybean Disease Information

Although uncommonly observed in North Carolina, soybean rust can be a yield limiting disease for soybeans. Proper identification is important to developing a management strategy.

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.

Phytopthora Root and Stem Rot of Soybean

By: Yara Rosado Rivera, Lindsey Thiessen Soybean Disease Information

Phytophthora root and stem rot is a common pathogen in North Carolina due to our frequent wet weather. This factsheet describes the symptoms and management of the disease in soybean production.

Reniform Nematode of Soybean

By: Yara Rosado Rivera, Lindsey Thiessen Soybean Disease Information

The reniform nematode is not a common nematode pressure for soybean growers in North Carolina, but is limited to several southern counties of the state. This factsheet will help growers identify and management the nematodes in soybean production in North Carolina.

Root Knot Nematode of Cotton

By: Lindsey Thiessen, Yara Rosado Rivera Cotton Disease Information

Root knot nematode is an economically important pathogen for cotton production in North Carolina. Accurate identification is useful for selecting the proper management method.

Lance Nematode of Soybean

By: Yara Rosado Rivera, Lindsey Thiessen Soybean Disease Information

Lance nematode is not a common problem of soybeans, but can cause local damages in fields where it is found. This factsheet covers the symptoms and management of lance nematodes in North Carolina.

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.