We simply love hearing success stories of CS 2005 with our growers and do our best to share with you! Magna-Bon CS 2005 continues to have tremendous success for growers. Wine and table grapes are no different, so when we received this grower testimonial we just had to share!

The back story…

JW Ray had issues with powdery mildew with his grapes at JOLO Winery, located in Mount Pilot, North Carolina. JOLO Winery is rated in the Top 7 wineries located outside of California according to Trip Advisor! I’ve been to some great wineries and simply cannot wait to try this one out! This place looks absolutely amazing!

Here is JW’s message to President of Magna-Bon, Frank Miele:

Frank, JW Ray here up in North Carolina. Just reporting that I’m in love with your product! I’ve sprayed it on three varieties (Vidal Blanc, Chambourcon, Traminette) known to have sensitivity to copper and they have performed spectacularly. I’ll be at 20 ounces of CS 2005 with 75 gallons of water per acre but it eradicated the early onset of powdery mildew!

Powdery Mildew can be an absolute mess for grape growers but CS 2005 helps combat Downy Mildew, Powdery Mildew and Brown Rot in grapes! Our recommended application rates are 75 – 125 PPM (Parts Per Million) or 19.2 – 32 ounces of CS 2005 per 100 gallons of water. If you are spraying more/less water per acre, click here for our application rates table. Whether it is Powdery Mildew or Downy Mildew, we have you covered!

  Picture: Powdery Mildew shown on grapes.

Powdery Mildew Research Trials – UC Davis – Dr. Akif Eskalen

Magna-Bon CS 2005 achieved outstanding results in the 2021 UC – Davis Grape Powdery Mildew Fungicide Efficacy Trials!

  • Table 1 with an infection rate of 71%, CS 2005 had 83% control of Powdery Mildew!
  • Table 2 with an infection rate of 46%, CS 2005 had 95% control of Powdery Mildew!

Application rates of Magna-Bon CS 2005 = 20oz per 100 gallons of water per acre, 14 day intervals





Interested in using CS 2005 for your winery or grape orchard? Send us an email and we’ll direct you to your local distributor! 


Thanks JW for the outstanding compliment and cannot wait to try your wine!