My plants are into two weeks of flowering,, I have two small buds that on the leaves there are black spots. I am thinking it might be mold but I am not sure what is going on. I've never had anything like this. Yes I have had bud rot before but it is way too soon for bud rot. These pictures were taken this morning so there is still dew on them,,,, Any help would be appreciated. If you think it is mold should I pinch off the buds that are affected so to keep it from spreading to the other buds.... Thank you

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I don't know Deb. Never seen that before. I have heard that fulvic acid (avalable at most hydro stores) will kill most mould and it will not hurt anything. Milk also works. LOL! And it is cheaper too!

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j-angel

aka GP purrie kittie attack cat!


My Little Grow LST'ing w/Hardware

My Outdoor Odyssey 2008 BONSAI MUMS

My Little Grow Indoor To Outdoor 2009

Hi There,

Did you find out the cause yet?

I have em too. I assumed it was somehow cultural & had to do with this strange northern weather and that the strains that show this phenomenon have purple genetics as i saw last year.

But last summer i didnt have it spotted like this, rather turning purple the last few weeks.

I dont know this kind of weather...4th year up north for me.

Have been watching a few i have with these purple spots and nothing seems to be happening bad, even tho we (catskills) have had lots of wet, wet, cool weather.

My bunch are flourishing now, however, since we have been having a week of sunny daze.
Bye the way, that is a beautiful picture...the one up top.

keep an eye on it.. it may rot your tip

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Yea i havesum outdoors an they are black likethat but much worse,,,
they were under the overhang from mygarageso i thought it was tar from the roof or something,, i dunno?? Crazy!! Ill take sum pics tomorrow ofmy outdoor babies,,

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Well it sounds like I'm not the only one with this unknown problem,,, Yes it will be nice to see your pictures OMINOUS, thank you.. Mine also started out looking kind of purplish and the hairs on the bud are mostly purple, kind of pretty if the black stuff wasn't there.... But thes buds are very small compared to my other plants, not sure if there is a connection.... Thanks for all the help in finding what this strange thing is,,, funny that someone doesn't know, I have checked all the plant abuse charts with pictures and there is nothing I have found yet,,,,

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ive had that before.. it looks like frost burn... but i have no idea what this particular diseas is

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We of course this time of year have had no frost,,, The leaves are not mushy or ready to break off,, The bud itself have no black on them....

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Try taking a spray bottle with milk out to them and spray them down Deb. Milk will kill any fungas or mold on them, so it could help. But do it early in the day so it has a chance to dry before the heavy dew at night.

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j-angel

aka GP purrie kittie attack cat!


My Little Grow LST'ing w/Hardware

My Outdoor Odyssey 2008 BONSAI MUMS

My Little Grow Indoor To Outdoor 2009

Thanks Jangel, going out to get milk today... Ya I think thats my best bet, like you said it can't hurt them anyways

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that leaf spotting looks ominous. i would water with a fungicide, being sure to drench the soil well. i like "cleary's 3336". diseases cant be cured on plants, just stopped. once the damage (leaf spots) is done, its done. i would try to stop it before it gets any worse. as for the milk, i am not the kind of person that takes a knife to a gun fight.

looking closer at the spotting. it looks like it is just on the tips and a couple of spots right on the veins corners. maybe it is a toxic amount of a nute? are you feeding heavy?

I'm not feeding as of yet, not since I put them outside back in June.....Mother nature has been taking care of every thing along with good humus/compost with peat moss perlite and lime, when I do fertilize them right off soon it will be organic, Bit no it cant be over ferts...

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What is the effect of milk on plants?
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There are many folk-cures and hear-say remedies for growing plants, many if not most will end in weakening if not killing the plant, the best recourse is to know the plant, know what type of soil it likes, and what kind of nutrients it requires, (well balanced nutrient filled diet) the simple course of action would be: Plain water, Air, Sunlight [full/partial/defused] and a mild form of fertilizer, keeping in mind not to over water or under water.

the plant will be ok, if you can tolerate the smell. The plant may get small amounts of mold, but not enough to kill it.
The plant may take in the water and calcium and other nutrients that milk contains and then the rest will just remain and won't help at all.

i had to look and see - i have never heard of it. i think this could do more damage than good. might feed any fungus already in the soil.... i would stick to water!

Another member had this posted and this is what I was referring to:

here is another all natural treatment for pests, powdery mildew in this case.

(although you may have seen this already, it is worth posting again)


Milk is a useful fungicide in the garden, and is more effective than standard chemical brands.


Researchers believe the potassium phosphate in milk boosts a plant's immune system to fight the fungi.

Where most organic gardeners use a baking soda, soap and oil solution, milk may be substituted to combat the unwanted fungus.

Preparing a Milk Solution and Spraying Schedule

The correct dilution and spraying schedule for garden plants depends on the situation and takes some trial and error.

A milk fungicide solution can range from 1 part milk to 9 parts water, to a strong, milk-only solution. A 1:1 dilution may work for a week, but a 1:8 solution requires spraying every 3 or 4 days.

Skim milk may work better than whole milk, as the higher fat milk may clog a sprayer; even reconstituted powdered milk works.

Uses for Milk Fungicide

Milk was originally used in the garden to treat powdery mildew on squash plants. It is now also commonly used on flowers such as rudebekia (Black-eyed Susans) and Begonias to cure powdery mildew.

Milk has also been used to cure Botrytis on a Cyclamen houseplant. This was applied full strength every morning (leftover breakfast milk). Rotten leaves were picked away and the plant pulled through with no more Botrytis.

Black spots and rust on roses can be controlled but not cured with milk. Fortunately, milk can prevent the spread of these fungi to other plants and new leaves. This can be very useful when bringing home a plant from the nursery and finding a black spot.


The copyright of the article Milk as a Garden Fungicide for Powdery Mildew, Botrytis, and Black Spots in Organic Gardening is owned by Deborah Turton. Permission to republish Milk as a Garden Fungicide for Powdery Mildew, Botrytis, and Black Spots in print or online must be granted by the author in writing.


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by Arzeena Hamir
Powdery Mildew

Less than 3 years ago, researchers in South America discovered a new alternative to controlling powdery mildew. Wagner Bettiol, a scientist from Brazil, found that weekly sprays of milk controlled powdery mildew in zucchini just as effectively as synthetic fungicides such as fenarimol or benomyl. Not only was milk found to be effective at controlling the disease, it also acted as a foliar fertilizer, boosting the plant's immune system.

Powdery mildew in the cucurbit family is caused by the organism Sphaerotheca Fuliginea. It is a serious disease that occurs worldwide. For decades, organic gardeners had to rely on making a spray from baking soda to control the disease. Now, instead of measuring out the baking soda and combining it with a surfactant (a "sticking" substance) of either oil or soap, gardeners need only head for their refrigerators.

In his experiments with zucchini plants, Bettiol found that a weekly spray of milk at a concentration of at least 10% (1 part milk to 9 parts water) significantly reduced the severity of powdery mildew infection on the plants by 90%. While some gardeners may be tempted to increase the concentration of milk for more control, Bettiol found that once concentrations rose above 30%, an innoccuous fungus began to grow on the plants. How does milk control powdery mildew?

Scientist aren't 100% sure how milk works to control this disease. It seems that milk is a natural germicide. In addition, it contains several naturally occurring salts and amino acids that are taken up by the plant. From previous experiments using sodium bicarbonate, potassium phosphate, and other salts, researchers have found that the disease is sensitive to these salts. It is possible then, that milk boosts the plant's immune system to prevent the disease.

Milk used around the world
The benefits of using milk to control powdery mildew haven't been isolated to Brazil. Melon growers in New Zealand are saving thousands of dollars every year by spraying their crops with milk instead of synthetic fungicides. The melon growers in New Zealand have been so successful that the wine industry is taking notice and beginning experiments using milk to control powdery mildew in grapes.

What kind of milk should be used?
In Bettiol's original experiment, fresh milk was used, straight from the cow. However, this is obviously not feasible to most home gardeners. The research work in New Zealand actually found that using skim milk was just as effective. Not only was it cheaper, but the fact that the milk had no fat content meant that there was less chance of any odours.

Wagner Bettiol's original article was published in the journal Crop Science (Vol. 18, 1999, pp. 489-92).

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Life,
j-angel

aka GP purrie kittie attack cat!


My Little Grow LST'ing w/Hardware

My Outdoor Odyssey 2008 BONSAI MUMS

My Little Grow Indoor To Outdoor 2009

wow thats pretty cool! i had no idea. and i thought i was just for drinking.

watch then and see what happens. if you cant find the spots on any plant forum, they are probably harmless. wait and see

I know, I am sure you thought me looney saying to use milk. So many things useful in the organic garden! There are many other things listed in the Organic forum so take a read.

Peace

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Life,
j-angel

aka GP purrie kittie attack cat!


My Little Grow LST'ing w/Hardware

My Outdoor Odyssey 2008 BONSAI MUMS

My Little Grow Indoor To Outdoor 2009

Thanks for posting that Jangel,, at this point of the grow I wouldn't use chemicals if I had to,,, at least I don't think I would,, it scares me to think of smoking chemicals...

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