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Spectro 90 WDG Fungicide - Questions & Answers

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Spectro 90 WDG Fungicide
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Displaying 1 to 20 (of 25 questions)
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  • Asked by Rob from Plymouth, Mi
    04/17/2014
    Q
    Spectro 90 WDG Fungicide 5 lb
    Hello, I've purchased Spectro 90 WDG Fungicide 5 lb and I would like to know, how much of powder I should use per gallon of water? I have 1 gallon sprayer and I have to use it for needle cast on blue spruce...
    A
    For samller spot treatments you would use 1-2 tablespoons of Cleary's Spectro 90 WDG per gallon of water and thoroughly spray the blue spruce being sure to provide adequate coverage.
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    23 of 24 people found this answer helpful.
  • Asked by Rob from Mi
    04/15/2014
    Q
    I have Rhizosphaera needlecast on my spruce trees. How much Clearys Spectro 90WDG do I need per gal of water?
    I have 1 gallon sprayer.
    A
    You would use 1-2 tablespoons of the Clearys Spectro 90 WDG per gallon of water and make sure to spray thoroughly as this is a contact fungicide. You may see a white powdery residue on the needles for a few days but this will eventually wear off. 
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    14 of 15 people found this answer helpful.
  • Asked by Brian from Fairfield, Id
    09/29/2015
    Q
    How often do I need to spray my blue spruce for fungus with Clearys Spectro 90 WDG? Is there a specific time this product should be sprayed?
    A

    When you are treating blue spruce trees with  Clearys Spectro 90 WDG, it is recommended that you spray every 3-4 weeks until the conditions are no longer favorable for disease development. Since this product is a curative, you will use it when the disease appears so this could be at any time of the year.

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    8 of 10 people found this answer helpful.
  • Asked by Robert from Northbridge
    12/21/2016
    Q
    How much Clearys Spectro 90 WDG do I measure out for a two gallon pump sprayer?
    A

    You would use 1-2 tablespoons pf the Clearys Spectro 90 WDG per gallon of water, and make sure to spray thoroughly as this product is a contact fungicide. You might see a white powdery residue for a dew days, but this will eventually wear off. 

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    8 of 9 people found this answer helpful.
  • Asked by Albert from Hinsdale, Nh
    03/21/2017
    Q
    Is there any cure for my blue spruces that are turning brown?
    A

    For disease control on blue spruce trees, we generally recommend using Clearys Spectro 90 WDG. It is recommended that you spray every 3-4 weeks until the conditions are no longer favorable for disease development. Since this product is a curative, you will use it when the disease appears so this could be at any time of the year. Be sure to consult an arborist if you are not sure of the specific issues with your trees.

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    7 of 7 people found this answer helpful.
  • Asked by Eric from Harvest
    08/03/2018
    Q
    Will this cure dollar spot and brown patch or just prevent?
    Also how much product to a gallon or 1k sqft?
    A

    Clearys Spectro 90 is a curative and a preventer for both dollar spot and brown patch fungus.  Apply at the higher rate for curatives at 5.76 oz per 1,000 sqft and the lower rates for preventative 3.72 oz per 1,000 sqft.

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    3 of 4 people found this answer helpful.
  • Asked by Leon from Charlotte
    10/30/2019
    Q
    How and when should Clearys Spectro 90 WDG be used to treat leaf spot on privet?
    A

    You can use Clearys Spectro 90 WDG on privet for leaf spot anytime the disease is present or conditions are favorable for the disease development. You will use 1-2 pounds per 100 gallons of water with a minimum retreatment time of 7 days.

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    3 of 4 people found this answer helpful.
  • Asked by Kathie
    05/26/2018
    Q
    How much solution will the 5 lb. bag of Clearys Spectro 90 WDG make?
    A

    The 5. lb bag of Clearys Spectro 90 WDG will make up to 500 gallons of solution.  Please see the product label for complete application instructions. 

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    3 of 4 people found this answer helpful.
  • Asked by Bob from Ada, Michigan
    03/25/2016
    Q
    What do you recommend to treat rhizosphaera needle cast on blue spruce trees in Michigan?
    We have approximately 100 trees to treat. We would like to do the treatment ourselves.
    A

    The only product that we do carry that does not say it cannot be used on blue spruce for needlecast is Clearys Spectro.  Please be aware that although the label states that it can be used on blue spruce, it may still bleach the trees, which is the problem with most products when they are used on blue spruce.  You may also want to contact the cooperative extension office in your area to see what products they may recommend for you to use. 

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    2 of 4 people found this answer helpful.
  • Asked by Kathy from Mich
    06/21/2016
    Q
    Can Clearys Spectro 90 WDG be used on pickles and tomatoes plants?
    A

    Clearys Spectro 90 WDG is not labeled to be used on anything edible.  Could you tell us what type of disease you are trying to treat and we can offer a better recommendation

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    2 of 3 people found this answer helpful.
  • Asked by J. from Vero Beach, Fl
    01/03/2015
    Q
    Ratio of H20 to Spectro 90 mix
    A
    The amount of water to use with Clearys Spectro 90 WDG is dependent upon how much water it takes to cover 1,000 sq feet. To determine how much water to use, we recommend the following steps. Mark off a 1,000 sq ft area. Fill 1 gallon pump sprayer with just plain water. Spray the area to determine how much water you will mix Clearys Spectro 90 WDG with to fully cover 1,000 sq feet. Please let us know if you have any further questions.
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    2 of 4 people found this answer helpful.
  • Asked by Rick from Tampa, Fl
    07/27/2017
    Q
    Can Clearys Spectro 90 WDG be used in a vegetable garden?
    I have already sprayed my vegetable garden with Spectro 90 WDG and am worried the vegetables are now not edible.
    A

    Unfortunately, Clearys Spectro 90 WDG is not labeled to be used on anything edible.  Any vegetables that have been sprayed should be discarded, and nothing should be eaten from the treated plants for at least 1 year after application. 

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    1 of 1 people found this answer helpful.
  • Asked by Karen from Muskego, Wi
    03/12/2018
    Q
    How much Spectro 90 do you use on crabapple trees with scab?
    My blue spruces have Rhizosphaera needlecast. How much of the Spectro 90 do I use for a gallon water? My crabapple trees have scab. How much of Spectro 90 do I use per gallon of water?
    A

    You would use 1-2 tablespoons of the Clearys Spectro 90 WDG per gallon of water and make sure to spray thoroughly as this is a contact fungicide. You may see a white powdery residue on the needles for a few days but this will eventually wear off.  It is recommended that you spray every 3-4 weeks until the conditions are no longer favorable for disease development. Since this product is a curative, you will use it when the disease appears so this could be at any time of the year.

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    1 of 1 people found this answer helpful.
  • Asked by Leanne from Concord, Ca
    09/10/2018
    Q
    How can I apply Clearys Spectro to taller trees?
    I have a 60 year old Monterey Ash tree with antracnose fungus. How and when should I apply Cleary's? I would need something more powerful than a pump sprayer to reach the branches.
    A

    Since the Clearys Spectro 90 WDG is a water-dispersible granule, it does need to be diluted in water before it can be applied. You can use a sprayer tank or bucket to dilute this product in water and then apply using a Chapin Slide Pump Sprayer to spray up to about 25-30 feet. There is a video on the product page to help you see how this sprayer works.

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    1 of 1 people found this answer helpful.
  • Asked by Thomas from Osceola
    03/23/2022
    Q
    How much Spectro 90 WDG Fungicide is added to 60 gallons of water to treat 100 apple trees?
    A

    Unfortunately, Clearys Spectro 90 WDG is not labeled to be used on anything edible.  Any vegetables or fruits that have been sprayed should be discarded, and nothing should be eaten from the treated plants for at least 1 year after application. 

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  • Asked by Chad from Pleasant Garden, Nc
    02/24/2022
    Q
    How much Spectro 90 WDG Fungicide in four gallon backpack for downey mildew on hollies?
    A
     

    For smaller spot treatments, Clearys Spectro 90 WDG is applied at 1-2 tablespoons per gallon of water. Make sure to spray thoroughly as this product is a contact fungicide. **Not for homeowner use. Not for use on turf being grown for sale or commercial use as sod. Do not use on home lawns and turf sites associated with apartment buildings, daycare centers, playgrounds, playfields, recreational park athletic fields, athletic fields located on or next to schools (i.e., elementary, middle and high school), campgrounds, churches, and theme parks.

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  • Asked by Sharon from Watseka, Il
    09/27/2021
    Q
    Can I use Spectro 90 WDG Fungicide systemically on Cleveland Pear with leaf spot?
    A

    Clearys Spectro 90 WDG is a water dispersible granule that works both systemically and on contact applied directly to the plants.  Please note that this is not labeled for residential use. 
     

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  • Asked by Thaddeus from Sc
    05/25/2021
    Q
    Can I use Spectro 90 WDG Fungicide on a lawn? How many sq feet does it cover for a gallon?
    A

     Clearys Spectro 90 WDG states on the product label: Not for homeowner use. Not for use on turf being grown for sale or commercial use as sod. Do not use on home lawns and turf sites associated with apartment buildings, daycare centers, playgrounds, playfields, recreational park athletic fields, athletic fields located on or next to schools (i.e., elementary, middle and high school), campgrounds, churches, and theme parks.

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  • Asked by John from Richmond, Va
    05/05/2021
    Q
    Can Spectro 90 WDG Fungicide damage hydrangea buds?
    I had been spraying maple trees with Spectro 90 as a fungal preventative and decided to use what was left to spray hydrangeas to prevent leaf spot. A few days later some of the hydrangea tips had turned black and curled up.
    A

    Cleary's Spectro 90 WDG is labeled for hydrangeas as long as you use correctly per product label it should not harm your hydrangea buds

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  • Asked by Thaddeus from Charelston, Sc
    03/02/2021
    Q
    Can I mix Spectro 90 WDG Fungicide Suspend SC and Demand CS?
    A

    Spectro 90 WDG Fungicide can be tank mixed with other pesticides, surfactants or fertilizers providing a compatibility test has been done prior to determine if the products are compatible and do not separate. Per the product label: 

    Please review the Tank Mixing Instructions on page 4 of the product label for more information regarding tank mixing. 

    Both Demand CS and Suspend SC offer a residual and cannot be mixed together. If you are looking for a product that offers a fast knockdown you want to choose a product that contains pyrethrins. ExciteR is a great tank mix partner for pyrethroid based products like Suspend SC or Demand.CS.

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    0 of 1 people found this answer helpful.
Displaying 1 to 20 (of 25 questions)