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

hops

Hops Scouting

June 18, 2021Emmalea Garver Ernest

David Owens, Extension Entomologist, owensd@udel.edu This week I had the chance to visit a hopyard in Newark. Both potato leafhoppers and mites were active. Thresholds in hops from other states are 2 leafhoppers per leaf and 2-5 mites per leaf.… Continue Reading →

Agronomic Crops 29:13, hops

Vegetable Disease Update – June 8, 2018

June 14, 2018Emmalea Garver Ernest

Kate Everts, Vegetable Pathologist, University of Delaware and University of Maryland; keverts@umd.edu Scab of Cucurbits Cool wet weather is associated with several vegetable diseases. One of these is scab on cucurbits, caused by the fungus Cladosporium cucumerinum, which is favored… Continue Reading →

Vegetable Crops 26:11, cantaloupe, cucurbit downy mildew, hops, scab of cucurbits, summer squash, winter squash

Wanted: Samples of Powdery Mildew on Hops

May 12, 2017cmanneri

Nancy Gregory, Plant Diagnostician; ngregory@udel.edu Samples Wanted: Powdery Mildew on Hops has not been confirmed in Delaware. Bill Weldon, a graduate student at Cornell University, is tracking the dispersal of this fungal disease across the US. There are “male” and… Continue Reading →

General 25:7, hops, powdery mildew

Potato Leafhoppers on Hops

June 17, 2016Emmalea Garver Ernest

Jerry Brust, IPM Vegetable Specialist, University of Maryland; jbrust@umd.edu I usually do not get the chance to look at many hop fields, as only a few farms have them, but they are becoming a bit more common in the last… Continue Reading →

Fruit Crops, Vegetable Crops 24:13, hops, potato leafhopper

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