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Wheat Diseases Added To Crop Protection Network Online Encyclopedia

Important updates have been made to the multi-state and international collaborative database, the Crop Protection Network (CPN). A total of 31 entries have been added to the database’s encyclopedia section, encompassing wheat crop pathogens. These entries are complete with in-depth descriptions and photos of diseases impacting wheat plants, diagnostic tips, impacts of weather on disease…

Fungicide Efficacy for Control of Corn Diseases

Fungicide Efficacy for Control of Corn Diseases The Corn Disease Working Group (CDWG) developed ratings for how well fungicides control major corn diseases in the United States. The CDWG determined the efficacy ratings for each fungicide by field-testing the materials over multiple years and locations. Each rating is based on the product’s level of disease…

Corn Disease Loss Estimates For the United States and Ontario, Canada — 2016

Corn Disease Loss Estimates For the United States and Ontario, Canada — 2016 Corn diseases annually reduce yield in the United States and Canada. Diseases of importance vary from year to year, and diseases that affect yield are based on many factors, including weather conditions, crop production practices, and hybrid selection and susceptibility to disease. Plant…

Soybean Disease Loss Estimates From the United States and Ontario, Canada — 2015

Soybean Disease Loss Estimates From the United States and Ontario, Canada — 2015 Each year, soybean diseases reduce yield in the United States and Ontario, Canada. Diseases of importance vary on an annual basis, and diseases that affect yield are based on many factors, including environment, crop production practices, as well as variety selection and susceptibility…

Corn Disease Loss Estimates For the United States and Ontario, Canada — 2015

Corn Disease Loss Estimates For the United States and Ontario, Canada — 2015 Corn diseases annually reduce yield in the United States and Canada. Diseases of importance vary from year to year, and diseases that affect yield are based on many factors, including weather conditions, crop production practices, and hybrid selection and susceptibility to disease. Plant…

Grain Sampling and Mycotoxin Testing

If corn ear rots were a problem in the field, it is important to test harvested grain for mycotoxins. Obtaining a representative sample for mycotoxin testing is critical for accurate results. It’s also important to know that testing methods vary in accuracy. This publication recommends grain sampling and testing methods for detecting mycotoxins. Sampling Requirements…

Using Atoxigenics to Manage Aflatoxin

Using Atoxigenics to Manage Aflatoxin Aspergillus ear rot (caused by the fungus Aspergillus flavus) is one of the most economically important corn ear rots in the southern United States (Fig. 1). The fungus produces aflatoxin, which is a dangerous mycotoxin. Most governments regulate aflatoxin in food and feed, because it is harmful to humans and livestock.…

Soybean Stem Zone Lines: Fact and Fiction

FACT: The presence of soybean stem zone lines is associated with stem disease in the Diaporthe/Phomopsis disease complex. This disease complex includes Phomopsis seed decay caused by D. longicolla, pod and stem blight caused by D. sojae, and stem canker caused by D. caulivora and D. aspalathi. FICTION: Soybean stem zone lines are associated with…

Soybean seed treatments: Questions that emerge when plants don’t

  Poor soybean stand establishment is frustrating, especially considering all the time and money spent on seed, planting, and maintaining fields.This is particularly true when farmers have also invested in seed treatments designed to prevent crop loss due to seedling diseases. However, every product has limitations and may not always work the way it is…