Adam Sisson
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View article: Field Crop Yield Loss Calculator for Disease and Invertebrate Pests: An Online Tool from the Crop Protection Network
Field Crop Yield Loss Calculator for Disease and Invertebrate Pests: An Online Tool from the Crop Protection Network Open
The Field Crop Disease and Invertebrate Loss Calculator Web Tool is an interactive online resource showcasing estimates of the yield reduction and economic impact of plant diseases and invertebrate pests over time and location. Accessible …
View article: Training Resource for Improvement of Visual Assessment of Field Crop Disease and Insect Defoliation Severity
Training Resource for Improvement of Visual Assessment of Field Crop Disease and Insect Defoliation Severity Open
The Field Crop Disease and Insect Defoliation Severity Training Tool is an interactive online resource designed to help crop scouts and researchers to increase visual assessment skills for disease symptom and insect defoliation severity on…
View article: The Science Behind Late Season Purple Soybean Stems
The Science Behind Late Season Purple Soybean Stems Open
The purple symptomology we are seeing on both mature and green soybean stems is most likely caused by elevated anthocyanin levels.Elevated anthocyanin levels are more common in soybean cultivars with purple flowers, but can occur in cultiv…
View article: Using Design Interventions to Develop Communication Solutions for Integrated Pest Management
Using Design Interventions to Develop Communication Solutions for Integrated Pest Management Open
Iowa State University’s (ISU) Integrated Pest Management (IPM) program partnered with the ISU College of Design (COD) to use Design Thinking and other practical design methodologies and theories to identify and develop approaches to addres…
View article: Scouting for Black Cutworm 2019
Scouting for Black Cutworm 2019 Open
Black cutworm (BCW) is a migratory pest that cuts and feeds on early vegetative-stage corn. Black cutworm moths arrive in Iowa and other northern states with spring storms each year. These moths lay eggs in and around crop fields, and emer…
View article: Another Harsh Winter for Bean Leaf Beetle
Another Harsh Winter for Bean Leaf Beetle Open
Bean leaf beetle adults (Photo 1) are susceptible to cold weather and most will die when air temperatures fall below 14°F (-10°C). However, they have adapted to winter by protecting themselves under plant debris and loose soil. Each spring…
View article: Scout, Snap, and Share: First Impressions of Plant Disease Monitoring Using Social Media
Scout, Snap, and Share: First Impressions of Plant Disease Monitoring Using Social Media Open
The social media platform Twitter was used to monitor corn and soybean diseases in the United States during 2016 and 2017 as part of a campaign to involve crop scouts, farmers, educators, and agricultural advisors in disease data sharing. …
View article: A Tough Winter for Bean Leaf Beetle
A Tough Winter for Bean Leaf Beetle Open
Bean leaf beetle adults (Photo 1) are susceptible to cold weather and most will die when air temperatures fall below 14°F (-10°C). However, they have adapted to winter by protecting themselves under plant debris and loose soil. Each spring…
View article: Preparing Youths for Careers in Agriculture Through State Crop Scouting Competitions
Preparing Youths for Careers in Agriculture Through State Crop Scouting Competitions Open
State crop scouting competitions (CSCs) promote agriculture by introducing youths in Indiana, Iowa, and Nebraska to various agricultural disciplines while focusing on integrated pest management (IPM). High school students compete as teams …
View article: Bean Leaf Beetle Mortality Predictions
Bean Leaf Beetle Mortality Predictions Open
Bean leaf beetle adults (Photo 1) are susceptible to cold weather and most will die when the air temperature falls below 14°F (-10°C). However, they have adapted to winter by protecting themselves under plant debris and loose soil. Each sp…
View article: Black Cutworm Monitoring 2017
Black Cutworm Monitoring 2017 Open
This is the time of year when calls about black cutworm (BCW) scouting dates start to roll in, especially when Corn Belt states to the east have reported high moth numbers in traps. Despite what is being observed in states to the east (Ill…
View article: Soybean Yield Loss Estimates Due to Diseases in the United States and Ontario, Canada, from 2010 to 2014
Soybean Yield Loss Estimates Due to Diseases in the United States and Ontario, Canada, from 2010 to 2014 Open
Annual decreases in soybean (Glycine max L. Merrill) yield caused by diseases were estimated by surveying university-affiliated plant pathologists in 28 soybean-producing states in the United States and in Ontario, Canada, from 2010 throug…
View article: Effect of Foliar Fungicide and Insecticide on Hail-Damaged Soybean
Effect of Foliar Fungicide and Insecticide on Hail-Damaged Soybean Open
A fungicide (pyraclostrobin) and an insecticide (alpha-cypermethrin) were applied alone or in combination to hail-injured soybean to determine if yield could be preserved or foliar disease prevented. Pesticides were applied at approximatel…
View article: Corn Yield Loss Estimates Due to Diseases in the United States and Ontario, Canada from 2012 to 2015
Corn Yield Loss Estimates Due to Diseases in the United States and Ontario, Canada from 2012 to 2015 Open
Annual decreases in corn yield caused by diseases were estimated by surveying members of the Corn Disease Working Group in 22 corn-producing states in the United States and in Ontario, Canada, from 2012 through 2015. Estimated loss from ea…
View article: Effect of Foliar Fungicides on Hail-damaged Corn
Effect of Foliar Fungicides on Hail-damaged Corn Open
To test if fungicide applied to hail-injured corn improves yield and reduces disease, we simulated hail at VT and R2 growth stages for three years at three Iowa locations for a total of five site years. Hail damage was simulated using a st…
View article: Black Cutworm Moths Captured Throughout Midwest
Black Cutworm Moths Captured Throughout Midwest Open
Black cutworm moths (Photo 1) do not overwinter in Iowa and must migrate north annually. Black cutworm moths have been collected in Iowa since the beginning of April 2015. Seeing significant moth captures in early and mid-April is unusual …
View article: Black Cutworm Monitoring 2015: We Need Your Help!
Black Cutworm Monitoring 2015: We Need Your Help! Open
Black cutworm moths arrive in Iowa with spring storms each year. These moths lay eggs in fields and the emerging black cutworm larvae cut seedling corn. The sporadic nature of this pest makes scouting essential to determine if management i…
View article: Youth Awarded for Crop-Scouting Skills at 2015 Competition
Youth Awarded for Crop-Scouting Skills at 2015 Competition Open
Farming involves tough questions, such as determining if a fungicide should be applied to corn for northern corn leaf blight, or figuring out if yellow patches in a soybean field are caused by sudden death syndrome, a nutrient deficiency o…
View article: Hail and Fungicide Use on Corn
Hail and Fungicide Use on Corn Open
Hail annually destroys approximately 1.4 percent of corn (Climate of Iowa 2006). Years like 2009 stand out vividly to many people as major hailstorms cut across parts of Iowa, damaging more than 1 million acres of corn in a single season. …