We know that continually raising the bar on yield is important and that no two acres are alike. That's why we breed, test and deliver local support with you in mind. Get insights and recommendations focused right here in the West — so that you can be at your best.
Pioneer Agronomists are in fields like yours monitoring for the latest insects and diseases that threaten your crop’s yield potential.
Our agronomists, along with local and state researchers have collected scouting report data across regions to deliver these in-season scouting reports.
Check back often for the latest in-season monitoring reports, as they become available.
| Threat | Threat Level | See the Report |
|---|---|---|
| Corn Leaf Hopper |  (Week of 6/16/25) |
European Corn Borer
V6 - R6
Corn Leaf Aphids
V8 - R1
Fall Armyworm
V7 - R1
Gray Leaf Spot
V7 - R3
Southwestern Corn Borer
V7 - R6
Northern Corn Leaf Blight
V7 - R3
Soybean Aphid
2 months to max height – pod fill
White Mold
2 months to max height – pod fill
Japanese Beetle
2 months to max height – leaf drop
Green Stink Bug
2 months to max height – leaf drop
Join Pioneer Agronomists Jason Woodward and Brad Hopkins as they walk impact plots in South Texas to monitor corn stunt disease. After an unusual uptick in prevalence last year, the team is taking a closer look at symptoms, potential vectors like the corn leafhopper, and ongoing efforts to better understand the biology behind the disease complex.
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Join Pioneer Agronomists Jason Woodward and Brad Hopkins as they walk impact plots in South Texas to monitor corn stunt disease. After an unusual uptick in prevalence last year, the team is taking a closer look at symptoms, potential vectors like the corn leafhopper, and ongoing efforts to better understand the biology behind the disease complex.
Staging a corn seedling - each leaf stage is defined according to the uppermost leaf whose leaf collar is visible. Beginning at about V6 increasing stalk and nodal root growth combine to tear the small lowest leaves from the plant.
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Recommended planting dates for corn in the Southern U.S. can range from late-February to April depending on location.
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Corn stunt is one of the most economically important diseases affecting corn in South America but is less known in the U.S. Ears of infected plants are smaller than normal and do not fill properly.
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Pioneer experiments are conducted at around 50 locations each year where water availability is significantly limited due to low rainfall, sandy soils, or both.
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Pests like seed corn maggot, wireworms and white grub as well as diseases like Pythium and Phytophthora can reduce soybean stands early in the season. Find out about management strategies.
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The yield impact from southwestern corn borer is primarily due to stalk tunneling. Kernel feeding can increase aflatoxin levels in grain.
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Keystone NXT, Realm® Q, Aproach® Prima, Intrepid Edge®, and Transform® WG are not registered for sale or use in all states. Keystone® NXT is a Restricted Use Pesticide and is not available for sale, distribution or use in Nassau and Suffolk counties in the state of New York. Contact your state pesticide regulatory agency to determine if a product is registered for sale or use in your state. Enlist One® herbicide is not registered for sale or use in all states or counties. Contact your state pesticide regulatory agency to determine if a product is registered for sale or use in your area. Enlist One herbicide is the only 2,4-D product authorized for use in Enlist crops. Kyber® Pro has not yet received regulatory approvals; approvals are pending. The information presented here is not an offer for sale. Always read and follow label directions.
The foregoing is provided for informational use only. Please contact your Pioneer sales representative for information and suggestions specific to your operation. Product performance is variable and depends on many factors such as moisture and heat stress, soil type, management practices and environmental stress as well as disease and pest pressures. Individual results may vary. Pioneer® brand products are provided subject to the terms and conditions of purchase which are part of the labeling and purchase documents.
