Mycostop FAQ

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Frequently Asked Questions

 

How do you mix Mycostop Wettable Powder (WP)? 

Add the required amount of Mycostop WP into small a small volume of water (1 Quart or 1 Liter~) and agitate for 3-5 minutes. No clumps should be present when mixed.

 

Can you mix Mycostop WP without using a scale?

Yes - 1/6 level teaspoon is approximately equal to 0.5 grams of Mycostop, which makes 5 gallons of ready-to-apply solution at full strength for soil drench use.

 

 Can you mix Mycostop WP and use the solution at a later time?

Once mixed the solution should be used within 4 hours.  The Streptomyces spores will start to germinate and need a root surface or rhizosphere to colonize as soon as possible for best results.

Do you have to use the entire packet at once? 

No, a single packet may be used for for several applications - the package can be stored in the refrigerator or freezer after opening.  For best results, fold the foil packet over itself at the top, then place packet in a ziploc bag.  This will ensure no light, heat, or moisture will be present to degrade proteins that compose Mycostop.

Is Mycostop safe for my pets that may come in contact with it, specifically cats in my garden? 

Mycostop is 100% organic and natural. Animals have shown no interest in the powder.  It has an earthy odor.  Even if consumed by a cat or dog, no harm is expected based on extensive lab testing for EPA registration.

Is Mycostop OMRI Listed? 

Yes - Mycostop has been OMRI listed since 1988 (current certificates can be viewed on individual product pages)

Is Mycostop registered for use in California? 

Yes - Mycostop is currently registered for Ornamental Applications & Greenhouse Crops in California, CALPIP #64137-5-AA.

How often should I re-apply Mycostop?

Every 3-4 weeks for most applications, more often if the plants continue to show signs of disease.  Reapplication intervals shorter than 14 days have proven ineffective in most cases.

 Is there a re-entry interval when applying Mycostop?

No, Mycostop can be applied freely at any time with no concern for re-entry.

Do fertilizer applications affect Mycostop? 

Organic or inorganic fertilizers with not harm Mycostop as applied to the plant.  Mycostop should not be added to concentrated inorganic fertilizer such as in a feed tank because of the high ppm salt concentration, which may have a detrimental effect on the Streptomyces spores. 

How much bleach or hydrogen peroxide will Mycostop tolerate in a hydroponic system?

Mycostop will be unaffected at rates lower than 25ppm, we recommend adding Mycostop to pure RO or low ppm feed water.