Prime Source PPZ 41.8 Select Fungicide

5 out of 5 stars 3 Reviews | 1 Q&A

Prime Source PPZ 41.8 Select Fungicide

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Average Rating

5 out of 5 stars Rating: 5

3 Reviews | 1 Q&A

Product Overview

Prime Source's PPZ 41.8 Fungicide is a broad spectrum fungicide recommended for the control of many important plant diseases. PPZ 41.8% Select provides curative and preventative control of many ornamental, turfgrass and crop diseases. By providing full season protection for some crops, PPZ 41.8% Select is an economical way to protect and enhance the return on your investment. With a low odor emulsion formulation, PPZ 41.8% is an extremely compatible tank mixing agent. It is effective in improving the rate of establishment, when applied to cool season grass seedlings or sod.

  • Excellent residual control
  • Low use rates
  • Low odor formulation
  • High tank mix compatibility
  • Labeled for Turf, Ornamentals & Crop Protection applications
  • Full season disease control on some crops

PPZ 41.8 Select is a fungicide that controls ornamental and turfgrass diseases using a micro-emulsion formula. It has a low odor and low use rate, making it ideal for use as a tank mixture partner. This product is mainly used in golf courses, nurseries, landscaping, and commercial and residential lawns. PPZ 41.8 Select also helps to improve rate establishment when applied to cool season grass seedlings. This product helps in controlling dollar spot, brown patch, anathracnose, gray leaf spot, zoysia patch, pink and gray snow mold, and others. It is a long-lasting and fast-acting fungicide perfect for resistance management.

Features and Specs

Active Ingredient Propiconazole 41.8%
Target pests Brown Rot Blossom Blight , Anthracnose, Black Sigatoka, Leaf Spot, Mummyberry Diseases, Leaf Spot and Stem Canker, Rust, Leaf and Cane Spot, Powdery Mildew
* See label for complete list
For use in Golf Courses, Nurseries, Landscapes, Commercial and Residential Lawns
Application * See label for complete application instructions
Pet safe Yes, if used as directed on Label
Formulation Professional Product
Group 3 Fungicide
Special Features Excellent residual control
Turf, Ornamentals & Crop Protection applications
Full season disease control on some crops
Shipping Weight 9.51 lbs
Manufacturer Prime Source
EPA Registration 89442-3




  • Prepare no more spray mixture than is required for the immediate operation.
  • Thoroughly clean spray equipment before using.
  • Agitate the spray solution before and during application.
  • Rinse spray tank thoroughly with clean water after each day’ use and dispose of pesticide rinsate (contaminated water) by application to an already treated area.

Note: Please see Product Label for complete mixing instructions.


Avoid application under conditions when uniform coverage cannot be obtained or when excessive spray drift may occur. Do not apply in a manner that will result in exposure to humans or animals.

  • Ground Application: For tree crops, apply in a minimum of 50 gallons of water per acre unless specified otherwise. For other crops, apply a minimum of 10 gallons of water per acre unless specified otherwise.
  • Aerial Application: For tree crops, apply in a minimum of 10 gallons of water per acre unless specified otherwise. For other crops, apply in a minimum of 2 gallons of water per acre unless specified otherwise.
  • Application Through Irrigation Systems (Chemigation): Apply PPZ 41.8 Select through irrigation equipment only to crops for which chemigation is specified on this label.
  • For chemigation: apply 0.1-0.25 inches of water. Chemigation with excessive water may lead to a decrease in efficacy.


  • Almonds: Approximately 4-8 fl. oz. per acre.
  • Bananas and Plantains: Apply 3 fluid oz per acre.
  • Beets, Garden: 3 to 4 fluid oz per acre is a perfect amount to apply.
  • Berries: Use approximately 6 fluid oz per acre.
  • Carrots and Celery: Apply 4 fluid oz per acre.

Note: Please see label for other specific directions for use on other crops.

General Application Information:

  • PPZ 41.8 Select is most effective when applied and allowed to dry before a rainfall. For best results, sufficient water volume should be used to provide thorough coverage. PPZ 41.8 Select may be applied by ground, air, or chemigation.
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  • 5 of 5 Stars

    Effective And Cost Effective

    By Growing on 11/02/2015

    Used for treating dollar spot and Zoysia spot on an Empire Zoysia lawn in central Florida. The product proved to be effective when used as directed on the label. Two thorough treatments 14 days apart. I had previously used Propiconazole 14.3, which also worked, and found it to be a little more difficult to use in a hose sprayer(not recommended by the label) due to its honey like consistency. But PPZ 41.8 is more watery and mixes easily. The higher concentration also suites my needs for quantity as a one gallon bottle offers more than one treatment for my one acre of turf. Alternated treatments with Armada 50 WDG which is more difficult to mix as it needs a continually agitating tank for spraying this wettable powder. I feel that PPZ 41.8% can be used by the DIYer(wear safety gear strong concentration), but Armada is not suitable for typical homeowner use.

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    5 of 5 people found this review helpful

  • 5 of 5 Stars

    Proven Fungicide

    By David on 07/22/2017

    This is the highest percent active ingredient available, which is quite a savings because it goes farther. I like the results.

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    2 of 3 people found this review helpful

  • 5 of 5 Stars

    strongly recommend this co. and products

    By Stephen on 07/21/2016

    good product, high concentrate, effective fungicide, good service, pricing also good, have done business with before

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    1 of 1 people found this review helpful

See all 3 customer reviews

Applying PPZ 41.8 fungicide to Centipede lawn for Brown Patch

Directions say .73 ounces per 1,000 square feet and to mix with at least 10 gallons of water and can be applied with tank sprayer. I would like to dilute this concentrate 10:1 with water first, then apply it using a Hudson Model 60000 hose end sprayer where it automatically mixes what you put in the bottle with water while spraying. That sprayer wants to know how much chemical per gallon of dispensed water. Any idea how to set the sprayer for this product? My hose dispenses about 3 GPM when using this sprayer. I have about 20,000 square feet to treat, thus I should use about 15 ounces of concentrate for the entire lawn and 150 gallons of water which would be way too many hand sprayer tank refills. My hose end sprayer would dispense for 50 minutes to expel 150 gallons which should roughly be the time it would take to cover 20,000 feet so perhaps I should dispense at the rate of .1 oz per gallon or pre-dilute 10:1 and then dispense with hose end sprayer at rate of 1 0Z / gallon? Thoughts? Suggestions?


Prime Source PPZ 41.8 Fungicide would not be recommended to use in a hose end sprayer as the rate is not set per gallon but is per area.  Water is just the carrier so you use the labeled rate in however much water it takes you to cover the 1000 sqft.  Since we do not carry that model hose end we are unfamiliar with it or how to set it and cannot advise on it.  You can try reaching out to the manufacturer of your equipment or Prime Source who can be reached at 877-235-0043.

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3 of 5 people found this answer helpful

Prime Source PPZ 41.8 Select Fungicide 5 out of 5 stars Rating: 5 (3 Reviews / 1 Q&A)

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