OHP Strike Plus 50 WDG Fungicide


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5 out of 5 stars Rating: 5

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{ $138.03 { $136.27
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OHP Strike Plus 50 WDG Fungicide jar (1 lb)

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OHP Strike Plus 50 WDG Fungicide

OHP Strike Plus 50 WDG Fungicide contains a combination of two systemic fungicides which effectively help prevent and control stem and foliar diseases in ornamentals, flowers, shade trees, shrubs, and non-bearing fruit trees that are grown in greenhouses, garden centers, and nurseries. It contains Trifloxystrobin and Triadimefon as its active ingredients and is formulated as water dispersible granule. OHP Strike Plus will provide a residual of up to 30 days. It is absorbed quickly and moves systematically through the plant.


STRIKE PLUS 50 WDG is a broad-spectrum systemic fungicide for the control of listed foliar and stem diseases of ornamentals including flowers, foliage plants, shrubs, shade trees and non-bearing fruit trees grown in nurseries, garden centers and greenhouses.

Use restrictions for STRIKE PLUS 50 WDG on Ornamentals.

  • Do not use STRIKE PLUS 50 WDG in residential greenhouses.
  • Applications with hose-end sprayers are permitted only for outdoor use on ornamentals.
  • Do not use STRIKE PLUS 50 WDG on bearing fruit trees. STRIKE PLUS 50 WDG may be used on non- bearing trees. Non-bearing trees are defined as trees that will not bear fruit until at least 1 year after treatment.

Garden Center and Nursery Applications

Foliar Diseases:

STRIKE PLUS 50 WDG will control foliar diseases of ornamental plants when applied as a foliar spray to the plant species listed on this label. Apply 3 to 9 oz STRIKE PLUS 50 WDG per 100 gallons of spray solution. Apply as a full-coverage spray to the point of drip and repeat at 14 to 28 day intervals until the threat of disease is over. Begin applications when conditions are favorable for disease development and continue until the threat of disease is over. Use higher rates or shorter intervals under high disease pressure.

Do not exceed a maximum of 207 oz of STRIKE PLUS 50 WDG per acre per year (4.76 oz/1000 sq ft).

Do not exceed a volume of 530 gallons of spray mix per acre per application at the highest application rate of 9 oz/100 gallons.

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  • 5 of 5 stars  Great for Blackspot
    By Roger in Ooltewah Tennessee on 04/30/2017

    When paired and rotated with other fungicides such as BannerMaxx or Cleary's 3336F and sprayed every week to ten days Strike Plus offers a great defense against Blackspot on roses. Its mode of action complements the MOAs of the other paired fungicides to prevent the Blackspot from developing a resistance to the spray.

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03/22/2017 Timothy from Milton Freewater, Oregon

QWhat is the best treatment regimen for Botrytis Convoluta in bearded iris?
I have a large commercial iris garden and would like to control the incidence of Botrytis convoluta in new plantings. I live in the Columbia Basin of eastern Washington/Oregon, and this problem is a nuisance. Not damaging to established clumps, but can be a problem new plantings. Most of the incidences occur late winter to early spring. Problem abates by early summer. Drainage is excellent, and the field is in full sun. Soil is a volcanic based silt loam.


According to the Penn State Extension Office: "Do not plant infected rhizomes. Destroy infected plants." It would be best to reach out to your local cooperataive extension office or a local nursery who have experience with Iris diseases and a treatment regimen. We do carry a product called OHP Strike Plus 50 WDG Fungicide that's labeled to treat for Botrytis as well as Cleary 3336F Fungicide.

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04/11/2015 Debra from Fairfax, Virginia

QHow long can OHP Strike Plus 50 WDG Fungicide be stored?

AIf stored in a cool dry area OHP Strike Plus 50 WDG Fungicide shelf life is 3 years. 

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