i know this is the wrong section for this question(mold). please help!

Earlier today i found 3 small powdery mold spots(2 on 1 plant, 1 on another). I sprayed a 4-1 skim milk mix on them making sure all the flowers and leaves were covered well. Rain is coming late tonight in to tomorrow and i want input on what ive done and were i stand. I want to flower 2 more weeks.
 

SxIstew

Well-Known Member
Read this. :) Good Luck.
https://www.rollitup.org/marijuana-plant-problems/714859-prevention-treatment-powdery-mildew-mandalaseed.html
Is milk the answer?

In an outdoor garden we have also found a diluted milk solution effective during vegetative growth when combined with other products. The idea to use milk as a biological fungicide came from the Brazilian scientist Wagner Bettiol. He experimented with different mixes of fresh milk in order to combat powdery mildew on greenhouse zucchinis and published his findings in 1999. The Australian scientist Peter Crisp from the University of Adelaide tested this method among 40 different alternative methods to combat mildew on grapevines. He discovered that milk or whey showed the best results. The microorganisms in the milk combat the mildew. In addition, the natrium phosphate strengthens plant defences. Diluted milk has been reported as surprisingly efficient in the agricultural sector in Australia, but under central European conditions it is used only rarely on cultivars due to the poorer weather conditions. There is, of course, a big difference between zucchini, grapevines, and cannabis plants. No matter how promising such results look like, they must always be seen in the context of which cultivars require treatment. Since milk contains proteins and sugars, infection by grey mold (Botrytis) may be promoted after treatment. That poses a serious risk to flowering marijuana. For this reason it is only recommended to treat cannabis plants with a diluted milk solution during growth and preflowering.

Application
For maximal effectiveness the treatments should be alternated weekly with another fungicide. Mix milk and water in parts of 1:9. Spray the plant thoroughly on a sunny day. If no other fungicides are available apply 1-2x weekly.
 

bird dog

Well-Known Member
You may want to consider getting a jar of GreenCure. You can find it almost anywhere. Use it in your spray bottle. Also kills and retracts most bugs. Peace
:leaf:

edit: Make sure you spray the bottoms!
 
Quote:Since milk contains proteins and sugars, infection by grey mold (Botrytis) may be promoted after treatment. That poses a serious risk to flowering*marijuana. For this reason it is only recommended to treat cannabis plants with a diluted milk solution during*growth and preflowering.

Great my ladies are a month in to flowering and i sprayed them really good! Tomorrow is rain. Now what?!
 

Mad Hamish

Well-Known Member
The reason milk works, is because of s little thing called Lactic Acid Bacteria, or Lacto Bacilii. Spraying pure milk can help, but what you IDEALLY want to do is promote a healthy phyllosphere by encouraging tons of GOOD, STRONG micro-organisms. If you do this from early on, you will never see molds. If you want it to work FAST, you can culture relatively pure Lacto B at home. It might be a bit late now seeing as it can take a week or more, but here is the method:

Take a bowl, fill 1/4 with brown rice. Top up with water, leaving an air-space (CRUCIAL) of about 1/3. Cover the bowl leaving a gap for air. Leave this rice water in a cool, dark place, around 2 ft off the ground, for 3-5 days. The water will get a milky colour and perhaps smell a bit. Strain the rice out, keeping the water (this water is now rich in microbes).

Pour water into a new container, and top up with 10x the volume of milk. Leave this for 3-5 days, until the milk seperates into a layer of white curds at the top, and a layer of yellow liquid at the bottom. This process will beat doen most bacteria and the Lacto B will dominate completely. This yellow liquid is your pure Lacto Bacilii culture.
Strain off your curds and discard onto compost heap. You can use the yellow liquid culture as is, diluted with 20 to even 50x the volume H2O and spray on your leaves. Most likely you will have much more than you need, so here is how to preserve the live bacteria and keep it alive for further use: Mix the yellow 'culture' with an equal part 'sugar water', this is made using Blackstrap Molasses diluted with 1/3 water. This is your Lacto B 'serum'. Dilute with 20x volume water and spray on plants.
This will beat down most other bad micro-organisms as it is much stronger.

For preventative measures during your grow, add some Lacto B to a fresh-brewed compost tea and foliar feed, every 2-4 weeks.

To learn more about how to brew your own compost teas, visit this thread:

https://www.rollitup.org/organics/676040-total-noob-using-teas-i.html

To learn more about True Living Organics, try this one:

https://www.rollitup.org/michigan-patients/583341-so-who-here-growing-true.html

Read both of them in their absolute ENTIRETY. Don't skip a post or page. You will have the healthiest plants you have ever seen. These guys are my GURUS.

Take care, and kick that mold's ass brother!
 

Mad Hamish

Well-Known Member
Quote:Since milk contains proteins and sugars, infection by grey mold (Botrytis) may be promoted after treatment. That poses a serious risk to flowering*marijuana. For this reason it is only recommended to treat cannabis plants with a diluted milk solution during*growth and preflowering.

Great my ladies are a month in to flowering and i sprayed them really good! Tomorrow is rain. Now what?!
Start your Lacto Bacilii culture mate. Trust me on this. Fight fire with fire. Bad microbes with good ones.
 
Thanks for the help! I will read it and implement it next year! I need to know what to do right now. Today i found/removed 3 small pm spots, then sprayed the milk/water mix and i made sure the flowers were sprayed very well. Rain is coming tomorrow and i want 2 more weeks to flower
 

Mad Hamish

Well-Known Member
With rain coming - prepare to perhaps harvest early. Watch the infestation closely! It sucks but rain does sometimes force an early crop. You can't spray any kind of fungicide now, whatever you do. Spraying ANYTHING on the bud is a bit risky when far into flower, you've got to keep in mind it adds more moisture which equals more problems.

EDIT: Most fungicides are SYSTEMIC, meaning they travel deep into the plant tissue. VERY bad to smoke. Rule of thumb out here is ZERO fungicide. If you can find a non-systemic one, this will be better, but like I said a fungicide this far in is not a recommendation I have ever seen made by any of the pros.

Any chance you can get a cover over your herb? I have a tarp and planted poles for in case. And I have had good success using a high-velocity fan or two outdoors providing this is possible. Works a treat drying buds out after rain. see if the dilute milk helps and report back PLEASE bro. I am not too certain what the residue will do to your bud - milk bacteria don't smell all that good, you don't want sour milk smelling buds :/

You can try using just a compost tea which will be done bubbling in a day or two and should have enough microbial activity to beat a small infestation down like propa little gangsters. This is all about really. A nice flowering tea will take you a day to put together and bubble. I would seriously recommend as benign an approach as possible. Bud taken early will always still be better than bud ruined by a spray.
 
Well it didnt rain alot last night and its pretty sunny right now. The 2 swiss cheese i saw the pm on happen to be way ahead of the others in terms of flower developement. 1 month in flowering and those 2 have some thick big buds but no hairs have turned color yet. They say milk does a body good, but does it do a swiss cheese good lol
 
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