Quali-Pro - Strobe 50WG Fungicide

  • Preventive and curative action
  • Affects every stage of fungal disease development
  • Absorbed through a plants leaves, crowns and roots
  • Can be applied as a foliar spray in alternating spray programs or in tank mixes
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in CA & NY

Product Label Download SDS

Quali-Pro Strobe 50WG will be Your Fungicide of Choice for All Turfgrass Treatments

Maintain warm- and cool-season turfgrass, golf courses, athletic fields, and more, protecting them from unsightly and troublesome plant diseases. Strobe fungicide can control specific pathogens causing foliar, stem, and root diseases, including leaf and stem blights, leaf spots, and molds.

Golf courses, Athletic Fields, and More- Strobe Fungicide Keeps Turfgrass Ready to be Enjoyed

Strobe 50WG is a broad-spectrum preventative fungicide with systemic and curative properties and can be used to control many important plant diseases. Strobe 50WG may be applied as a foliar spray, in alternating spray programs, or tank mixes with other registered pesticides. All applications must be made according to the use directions found on this label and the labels of tank-mix products.

Active Ingredient: Azoxystrobin

Use Sites:

  • Turfgrass (Warm-Season and Cool-Season)
  • Golf Courses
  • Commercial and Residential Sites
  • Athletic Fields
  • See Strobe 50WG label for complete list

Diseases Controlled:

  • Anthracnose
  • Brown Patch
  • Rust
  • Snow Molds
  • Necrotic Ring Spot
  • Pythium
  • Take-all Patch
  • See Strobe 50WG label for complete list


Applications should begin before disease development and continue throughout the season.

Strobe fungicide may be applied with all types of spray equipment commonly used for making ground applications. Do not apply through any type of ultra-low volume (ULV) spray system. Proper adjustments and calibration of spraying equipment to give good canopy penetration and coverage are essential for good disease control. The higher rates in the rate range and/or shorter spray intervals may be required under conditions of heavy infection pressure, highly susceptible varieties, or when environmental conditions conducive to disease exist. Apply Strobe 50WG in sufficient water volume for adequate coverage and canopy penetration.

Spray Solution Preparation- To prepare spray solution, partially fill the spray tank with clean water and begin agitation. Add the specified amount of Strobe50WG to the tank, allowing time for good dispersion, then add an adjuvant if suggested. If tank mixes are required, add products to the spray tank in the following order: Strobe 50WG, then other WG or dry flowable formulations, then wettable powders and flowable (aqueous suspensions) last. Finish filling the tank to the desired volume to obtain the proper spray concentration. Maintain agitation throughout the entire spraying operation. Do not allow the spray mixture to stand overnight or for prolonged periods. Make only the amount of spray required for immediate use. Thoroughly clean sprayers immediately after application.

Strobe fungicide is compatible with many commonly used fungicides, liquid fertilizers, herbicides, insecticides, and biological control products. If tank mixes are desired, observe all directions, precautions, and limitations on labeling all products used. Consult compatibility charts or other authorities for compatibility information.

Strobe 50WG is incompatible with many fertilizers when low water volumes are used for in-furrow applications. Cold temperatures and water quality exacerbate these compatibility problems. Conduct a physical compatibility test as described below. Do not combine Strobe fungicide in the spray tank with pesticides, surfactants, or fertilizers unless compatibility charts or your own prior use has shown that the combination is physically compatible, effective, and non-injurious under your conditions of use.

See Strobe 50WG label for complete directions and application instructions.

Integrated Pest (Disease) Management (IPM):
Integrate Strobe 50WG into an overall disease and pest management strategy whenever the use of a fungicide is required. Sound turf management resulting in healthy, vigorous turf is the foundation of a good IPM program. Cultural practices such as proper choice of turf variety, nutrient management, proper cutting height, thatch management, proper watering, drainage, and moisture stress management should be integrated with the use of fungicides to increase turf vigor and reduce the susceptibility to disease. Immunoassay detection kits and extension service diagnostic services can assist in the early and accurate identification of causal organisms and corresponding selection of the proper fungicide when required.

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