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Powdery Mildew control

Uncle Ben
Well-Known Member

Just wrote this in a PM to another grower. Since I spent some time on it thought I’d repeat it here. Question was, “Uncle Ben, have you ever had PM problems and if so, how did you control them?”

Never on cannabis but I do spray, rarely, PM control products on squash or cukes. I also have a broad spectrum spray program for grapes which includes PM control. Based on the 2014 Spray guide for Texas grape growers here are the most effective, food safe, products recommended for PM:

Pristine – a topical and systemic ‘silver bullet’, but very expensive. My fave. I mix it with Rally, see below.

Myclobutanil – that is the active ingredient found under many names. Cheap and another one of those “silver bullets”. Rally 40WSP is a commercial product I use. Price may be high but a little goes a lonnnnnnnng way as it contains 40% of the AI, active ingredient. Hardware stores will have mcylo. It will also control black rot, leaf blight and many other diseases. If you do any other type of gardening or have turf problems, this one is the one to have on hand. The over the counter products are a rip off, like this one at only .78% of the AI. http://www.ebay.com/itm/SCHULTZ-FUNGICIDE-PLUS-CONCENTRATE-Disease-Plus-Insect-Control-16-fl-oz-Bottle-/190947134508?pt=LH_DefaultDomain_0&hash=item2c75560c2c

This is THE cheapest way to go at 20% AI (active ingredient) – http://www.ebay.com/itm/Eagle-20EW-Fungicide-1-Pint-/231008032597?pt=LH_DefaultDomain_0&hash=item35c926d755 Post harvest interval is 14 days. Only 1.5 ml/gal. include a surfactant. (That calculation is based on a recommended rate of 5 oz/100 gals.)

Sulfur, although I don’t think your buds will smell/taste so good.

Just wrote this in a PM to another grower. Since I spent some time on it thought I'd repeat it here. Question was, "Uncle Ben, have you ever had PM…

Ultimate Seed Feminizer: Colloidal Silver

Takeaway: When the time comes to plant seeds, most farmers would prefer to use feminized seeds. To ensure seed feminization, most people resort to purchasing feminized seeds from commercial seed banks. But how does one guarantee they are what they claim to be?

When the time comes to plant seeds, most farmers would prefer to use feminized seeds. To ensure seed feminization, most people resort to purchasing feminized seeds from commercial seed banks. But how does one guarantee feminization and what is the most efficient way to do so other than purchasing seeds? After doing research and utilizing different ways to produce feminized seeds, I have found that using ionic colloidal silver is the most efficient, safest, and cost effective method for producing feminized seeds.

How Colloidal Silver Works

Here is how it works: When using colloidal silver formulated and 20 ppm or greater as a foliar spray, drenching the target area of the plant for 10-18 days in a row, the silver ion then inhibits the ethylene production needed by the plant to produce female flowers; In turn forcing the female plant to produce male pollen sacs. Because female plants having zero male chromosomes the pollen produced is female, resulting in 99.99% guaranteed female seeds when using the pollen from the plant that was treated with colloidal silver.

When to apply colloidal silver: The best time to use colloidal silver for feminization would be a day or two before you switch to flowering (12/12.) Immediately begin spraying colloidal silver on newer growth every day until male sacs start to form (typically 10-18 days.)

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Once you visualize the male sacs starting to form I would separate and isolate this particular plant from other plants that are flowering so you don’t pollinate other female plants (the less air flow the better so pollen doesn’t get airborne.) Once male sacs are developed it takes quite some time for them to open and produce a yellow like pollen (typically 2-3 weeks but varies with different genetics.)

Once pollen is present, gently tap the sacs on a mirror or smooth surface making it easy to collect the pollen. Use the pollen right away or store it a container in the freezer for later use. Now you have “female pollen” readily available to pollinateany genetics your heart desires! The next step is to pollinate your flowers (everyone uses different methods for pollination so I will let you decide how to do that)

Not only is colloidal silver used as an oligodynamic biocide, but it has many other benefits for plants as well, including feminization and sterilization. Thanks to science and nature’s elements, colloidal silver can be used to maximize yields and maintain plant sustainability throughout the entire life cycle of flowers.

Helpful tips when creating feminized seeds:

  • Pick the best looking female plant for this process to ensure premium genetics.
  • Make sure to separate and isolate the plant once sacs start to form – move to another room away from flowering plants.
  • Be prepared and take the necessary steps to have in place, a female plant that is nicely flowering and isolate and pollinate it with the feminized pollen created with colloidal silver (take some pollen on the end of a Q-tip and gently tap it over the flowers you would like to pollinate.)

Within 3-6 weeks your flowering plant will produce feminized seeds. GUARANTEED!

When the time comes to plant seeds, most farmers would prefer to use feminized seeds. To ensure seed feminization, most people resort to purchasing feminized seeds from commercial seed banks. But how does one guarantee…