University of Delaware
Weekly Crop Update
  • UD Cooperative Extension Home
Weekly Crop Update
from UD Cooperative Extension
Menu Close
  • Current Issue
  • About WCU
  • Issue & Weather Archive
  • Subscribe

17:5

Soybean Rust Update

April 17, 2009cmanneri

Bob Mulrooney, Extension Plant Pathologist; bobmul@udel.edu There has been no change in the soybean rust situation in the South. There is very little soybean rust at the present time. The recent increase in rainfall in many areas of the South… Continue Reading →

Uncategorized 17:5, soybean, soybean rust

Risk Assessment Tool for Predicting Fusarium Head Blight or Head Scab on Wheat

April 17, 2009cmanneri

Bob Mulrooney, Extension Plant Pathologist; bobmul@udel.edu It is not too early to be thinking about scab on wheat. During the winter meetings we talked to some audiences about the relatively new scab prediction model that is available. The following is… Continue Reading →

Uncategorized 17:5, fusarium head blight of wheat, wheat, wheat diseases

Wheat Disease Update

April 17, 2009cmanneri

Bob Mulrooney, Extension Plant Pathologist; bobmul@udel.edu Most foliage diseases are at low levels at this time, except where excessive amounts of fertilizer or manure have produced extremely lush growth that favors powdery mildew. Scouting for powdery mildew is advised at… Continue Reading →

Uncategorized 17:5, wheat, wheat diseases

Agronomic Crop Insects

April 17, 2009cmanneri

Joanne Whalen, Extension IPM Specialist; jwhalen@udel.edu Alfalfa Continue to scout fields for both alfalfa weevil and pea aphids. Economic levels of alfalfa weevil larvae and pea aphids can both be found in alfalfa fields at this time. As a general… Continue Reading →

Uncategorized 17:5, agronomic crop insect scouting

Scout for Spinach Downy Mildew and White Rust

April 17, 2009cmanneri

Bob Mulrooney, Extension Plant Pathologist; bobmul@udel.edu Scout spinach for downy mildew and white rust on a regular basis, especially if spring plantings are near overwintered fields. Beginning 2 to 3 weeks after emergence (and prior to symptom development), apply the… Continue Reading →

Uncategorized 17:5, spinach, vegetable diseases

Post navigation

← Older Articles
Newer Articles →

Additional Resources

  • Cooperative Extension Home
  • Commercial Vegetable Production Recommendations
  • Insect Sampling and Action Thresholds
  • Insect Trapping Programs
  • Integrated Weed Management
  • Extension Vegetable & Fruit Program
  • UD Extension Factsheets
  • DEOS Weather Station Data
  • NEWA Weather & Models

Join us on social media!

 

 

Admin

  • Log in
  • Entries RSS
  • Comments RSS
  • WordPress at UD
© 2025 Weekly Crop Update. All rights reserved.
Fashionista by aThemes
UD
  • Go to the UD twitter page (external link)>
  • Go to the UD facebook page (external link)>
  • Go to the UD instagram page (external link)>
  • Go to the UD youtube page (external link)>
  • Go to the UD pintrest page (external link)>
  • Go to the UD linkedin page (external link)>
  • ©   University of Delaware
  • Comments
  • Legal Notices
  • Accessibility Notice