GREAT LAKES HOPS

Hops BLOG

  • Home
  • Retail - Shop Now
  • Select Hops
    • Select Hops Program
    • Hop Sensory
    • Brew Group
    • Aztec™
    • Hydra™
    • Paradigm™
    • Bergamot™
    • Emerald Spire™
    • Gemini™
    • Mackinac™
    • Michigan Copper™
  • Select Hop Locator
  • Commercial Ordering
    • USDA Exclusive Hop Varieties >
      • Triumph
    • Availability
    • Commercial Contact
  • Hops Blog
  • Hops DOCS
  • FAQ

2/9/2013

Hop Pesticide Label Review - Quintec fungicide

Comments

Read Now
 
Picture
Quintec is a very specific protectant fungicide for the control of powdery mildew. It does not control existing or latent powdery mildew infections so it must be applied before infection conditions happens. (Latent  means the mildew is already present in mycelial form in the leaf but not producing the visible white spores yet.) It is very effective in controlling powdery mildew when applied properly. It is compatible with most other pesticides; so it is a good tank mixer. It is currently the best product available for preventing powdery mildew cone infections.

  Quintec's role in the hop yard is very specific. It is used in rotation (no more than 2 applications in a row, 3X per season) during stages of burr and cone development to stop powdery mildew infection of the cones. Heavily infected cones turn brown and are not very marketable. The rest of the year it sits in the pesticide cabinet - so don't purchase more than you need. Apply the first spray when bur formation is visible and a second spray within two weeks when the burrs are fully sized, but before cone scales develop.

  The idea is to get the chemical in place before the cone closes up. Applications made after cones form are pretty much ineffective - the disease is shielded inside the cone. Timing is everthing when using this product. It is best used along with an IPM weather forecasting program (like M.S.U.'s)  Different varieties of hops develop burrs at different times; so in hop yards with multiple varieties a staggered application , variety by variety, is necessary.

  Quintec is relatively safe - it only rates a caution on the label. However, it does have a funky restriction about spraying early morning / late evening because of aerial spray mists effects on certain species of bats.

Grower Notes:  For me, Quintec is one of the critical, must-have IPM sprays. I would drop a lot of other applications of other chemicals out of my IPM program before I missed this one. (Missing it would be equivalent to no control sprays for apple scab in an apple orchard.) It has a large effect on the final quality of the harvested cones.  

  I am very careful not to over-use Quintec, though. Some seasons, weather conditions are not right for powdery mildews to start during burr-out and I will not need to apply it during that critical 2-3 week period. Monitoring the hop yard and weather patterns just before, and during, burr formation help me decide whether it is necessary to apply Quintec. There is a temptation to repeatly spray Quintec just because it works so well. Its mode of action and the quick resistance of powdery mildews makes me be stingy with it's use - I want it to be around and effective for a long time. 


Share

Comments
Details
    Picture
    click here HOPS DOCS Collection - valuable info we find to share

    Blog Author

    Lynn, the head hop grower at Great Lakes Hops has over 30 years of experience in the horticultural field. Browse the blog articles here to find useful growing information for humulus lupulus, based on personal experience and observations at Great Lakes Hops.

    Archives

    January 2020
    December 2019
    November 2019
    September 2019
    July 2019
    April 2019
    July 2013
    May 2013
    February 2013
    December 2012
    November 2011
    October 2011
    September 2011

    Categories

    All
    Beer
    Bines
    Cholorine
    Fertilizer
    Fungicides
    Hops
    Hopyards
    Insecticides
    Pesticides
    Profiles
    Pruning
    Soil Testing
    Temperatures

    RSS Feed

​About Us​ - Contact - Employment​  © 2011 - 2019 Dutch Touch Growers, Inc.
  • Home
  • Retail - Shop Now
  • Select Hops
    • Select Hops Program
    • Hop Sensory
    • Brew Group
    • Aztec™
    • Hydra™
    • Paradigm™
    • Bergamot™
    • Emerald Spire™
    • Gemini™
    • Mackinac™
    • Michigan Copper™
  • Select Hop Locator
  • Commercial Ordering
    • USDA Exclusive Hop Varieties >
      • Triumph
    • Availability
    • Commercial Contact
  • Hops Blog
  • Hops DOCS
  • FAQ