MSU Extension Hops

Contents

Using the hop management guide .......................................................................................................................................... 2
Endangered Species Act impacting pesticide labels ............................................................................................................... 3
Hop exportation considerations for maximum residue levels ................................................................................................ 3
Growth stages guide ............................................................................................................................................................... 4
Management activities guide .................................................................................................................................................. 5
Weed management ................................................................................................................................................................ 5
Herbicides ............................................................................................................................................................................... 8
Disease scouting calendar ..................................................................................................................................................... 10
Fungicides ............................................................................................................................................................................. 11
Michigan hop disease management options ........................................................................................................................ 13
Hop cyst nematode management and prevention ............................................................................................................... 16
Viruses and viroids of hop in Michigan ................................................................................................................................. 16
Insect pest scouting calendar ............................................................................................................................................... 19
Insecticides ............................................................................................................................................................................ 20
Miticides ................................................................................................................................................................................ 22
Nutrient management considerations .................................................................................................................................. 23
Plant SAP analysis.................................................................................................................................................................. 27
MSU plant and pest diagnostics ............................................................................................................................................ 28
Additional hop resources ...................................................................................................................................................... 30

Using the hop management guide

Information presented here does not supersede the label directions. To protect yourself, others, and the environment, always read the label before applying any pesticide. Although efforts have been made to check the accuracy of information presented, it is the responsibility of the person using this information to verify that it is correct by reading the corresponding pesticide label in its entirety before using the product.

The information presented here is intended as a guide for Michigan hop growers in selecting pesticides and is for educational purposes only. Labels can and do change. For current label and MSDS information, visit one of the following free online databases: greenbook.net, cdms.com, and agrian.com.

The efficacies of products listed have not been evaluated on hop in Michigan. Reference to commercial products or trade names does not imply endorsement by Michigan State University Extension or bias against those not mentioned.