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Looking for guerillas with leaf spot diease experience.
- Thread starter hamstring
- Start date
WOW!! Glad to see this made it as a sticky it was a total community thing not any one contribution made this thread rather it was the willingness of the community that made it a valuable sticky. Thanks to all who contributed because it’s not easy to show problems rather than sticky bud shots.
Hopefully this thread will not have air its ugly head again for many years but if a guerrilla does come looking for a solution to little spots and defoliation he will have a helping hand.
Hopefully this thread will not have air its ugly head again for many years but if a guerrilla does come looking for a solution to little spots and defoliation he will have a helping hand.
Good sticky hamstring
I sure would like to talk about safety and effectiveness with Liquid Copper. After my experience i have some conclusions but there are some things i dont know for sure.
ghost of sage? You out there?
EFFECTIVENESS AND DOSAGE
I started my Lcopper treatments at the lowest dosage - .5 tbs per gallon. As directed, i waited 7 days to apply a second dose. I paid close attention because the intructions say that phototoxicity, (plant damage), can occurr and the likelyhood is greater when the plant is flowering.
After realizing the stuff wouldnt hurt the plants, i kicked the dosage up to the max of 2 tbs per gallon. This concentration was highly effective and i sense that if i had used this strenth on 4 day application intervals immediately upon discovering leaf spot, it would have been cured completely and the plants would have sustained no damage.
My much more tepid approach, produce like results- tepid. Some plants, those that seemed to have some resistance naturally were cured by my approach.Some plants that seemed very succeptable saw no real improvement in their condition and the Lcopper only acted to delay the death of these plants, while others responded well to the treatments..
White widow is very succeptable to the disease, but responds very well to the Lcopper . If hit hard and early with Lc, the plant will completely overcome the disease.
Bottom line, the earlier the treatment is applied the better. It's 100% effective for prevention, but as a "cure", the picture becomes a big more complicated. .There is a range of responses to the Lcopper depending upon strain and the succeptability of any given strain and to the degree of infection present in the plant at the time of application. Strains that have some resistance are easily cured by Lc. Some strains that are highly succeptable to the blight respond very well to the LC and the plant is cured, while others show very little if any response.
SAFETY
Im smoking on my 2nd ounce and dont taste any chemicals and havent experienced any side effects. It was approximately 25 days between the time of my last application and harvest. They recieved 1/2" of rain during that period.
The reality is that when i sprayed the plants, they were mostly leaves with only tiny pea sized buds. Now, the leaves have been manicured from the plant and the tennis ball sized buds that im smoking really werent on the plant when i sprayed it.
I feel its safe but i hope others will sound off.
I sure would like to talk about safety and effectiveness with Liquid Copper. After my experience i have some conclusions but there are some things i dont know for sure.
ghost of sage? You out there?
EFFECTIVENESS AND DOSAGE
I started my Lcopper treatments at the lowest dosage - .5 tbs per gallon. As directed, i waited 7 days to apply a second dose. I paid close attention because the intructions say that phototoxicity, (plant damage), can occurr and the likelyhood is greater when the plant is flowering.
After realizing the stuff wouldnt hurt the plants, i kicked the dosage up to the max of 2 tbs per gallon. This concentration was highly effective and i sense that if i had used this strenth on 4 day application intervals immediately upon discovering leaf spot, it would have been cured completely and the plants would have sustained no damage.
My much more tepid approach, produce like results- tepid. Some plants, those that seemed to have some resistance naturally were cured by my approach.Some plants that seemed very succeptable saw no real improvement in their condition and the Lcopper only acted to delay the death of these plants, while others responded well to the treatments..
White widow is very succeptable to the disease, but responds very well to the Lcopper . If hit hard and early with Lc, the plant will completely overcome the disease.
Bottom line, the earlier the treatment is applied the better. It's 100% effective for prevention, but as a "cure", the picture becomes a big more complicated. .There is a range of responses to the Lcopper depending upon strain and the succeptability of any given strain and to the degree of infection present in the plant at the time of application. Strains that have some resistance are easily cured by Lc. Some strains that are highly succeptable to the blight respond very well to the LC and the plant is cured, while others show very little if any response.
SAFETY
Im smoking on my 2nd ounce and dont taste any chemicals and havent experienced any side effects. It was approximately 25 days between the time of my last application and harvest. They recieved 1/2" of rain during that period.
The reality is that when i sprayed the plants, they were mostly leaves with only tiny pea sized buds. Now, the leaves have been manicured from the plant and the tennis ball sized buds that im smoking really werent on the plant when i sprayed it.
I feel its safe but i hope others will sound off.
G
gdawg
I have a super lemon haze that was about 3 or 4 weeks into flowering and started to rapidly drop leaves. I couldn't find lc but went with the "hi-yield" brand copper based fungicide from my local farmer co-op. Boudreax mix is the name and its a powder. I went with 4 tbs per gallon and soaked it. That was 4 days ago and my plant is greening back up and looks so much better. My friend is suffering the same problems and found the lc in his town so my second treatment will be with the liquid copper. But I give a green thumbs up to the hi-yield product if lc is not available. Big thanks to everybody on this thread and BABBA deserves the props on makin it a sticky for us. Thanks Mr. B!
B
Big Country
Liquid Copper, I buy mine at Lowes or Home depot its easy to find
I have not tried it on MJ
I have not tried it on MJ
B
Big Country
How would neem oil work against this
I have noticed the same little white spots on my plant that is starting to show pea sized flowers
It does not seem to be getting worse at this time
I have noticed the same little white spots on my plant that is starting to show pea sized flowers
It does not seem to be getting worse at this time
G
gdawg
I think it was said in a polite way don't waste Ur time with the neem.
DS and gdawg
Hey thanks a bunch for the Liquid Copper reports its so important to follow up on the remedies I forgot that. I looked for Liquid cooper but never found it you can bet it will be ordered for next season because as DS so importantly points out an OZ of prevention is worth an elbow of cure.
I continued to use Green Cure and Serenade because I had it and I wish I could say it worked but not ready to jump on that bandwagon yet. My weather completely changed and went dry so I don’t have enough evidence to say either of the two worked.
Hey thanks a bunch for the Liquid Copper reports its so important to follow up on the remedies I forgot that. I looked for Liquid cooper but never found it you can bet it will be ordered for next season because as DS so importantly points out an OZ of prevention is worth an elbow of cure.
I continued to use Green Cure and Serenade because I had it and I wish I could say it worked but not ready to jump on that bandwagon yet. My weather completely changed and went dry so I don’t have enough evidence to say either of the two worked.
badbeans
Member
I strongly advise you to NOT WAIT!
4 days ago I visited my plants and noticed the leaf spot, but couldnt treat them that day. I took the Liquid Copper to the patch today and nearly cried when I saw my plants. This disease can progress very quickly, so if you want to save your crop you should begin treatment with great haste!
I hope the Liquid Copper can save my crop, but time will tell...
bb
Whodair
I do not think YOUR yield will be affected because the disease has not progressed any from your first pics.
Can it affect yield? Absolutely and here are the two ways I have seen personally.
1. It causes leaf defoliation and therefore the plants ability to use the sun to produce flowers. Less leaves equals less flowers.
2. When it's severe it starts by attacking the large fan leaves but if it progresses it will attack the small inner bud leaves and stems causing bud rot extreme.
3. I guess there is a 3rd way and that is it kills the whole plant causing the “Pool Cue” effect. I large stem and no leaves.
I do not think YOUR yield will be affected because the disease has not progressed any from your first pics.
Can it affect yield? Absolutely and here are the two ways I have seen personally.
1. It causes leaf defoliation and therefore the plants ability to use the sun to produce flowers. Less leaves equals less flowers.
2. When it's severe it starts by attacking the large fan leaves but if it progresses it will attack the small inner bud leaves and stems causing bud rot extreme.
3. I guess there is a 3rd way and that is it kills the whole plant causing the “Pool Cue” effect. I large stem and no leaves.
I strongly advise you to NOT WAIT!
4 days ago I visited my plants and noticed the leaf spot, but couldnt treat them that day. I took the Liquid Copper to the patch today and nearly cried when I saw my plants. This disease can progress very quickly, so if you want to save your crop you should begin treatment with great haste!
I hope the Liquid Copper can save my crop, but time will tell...
bb
Thanks for the feedback your not alone others have chimed in to ask about the disease only to chime in a second time utterly devastated they waited to treat it.
If the conditions are right (high temps, humidity and or rain but rain does not need to be present just the high temps and humidity) it hits like a freight train. Small pinhead spots one week and two weeks later leaves are dropping like flies.
Take Bad beans advice and hit that shit hard with some Liquid Copper.
E
el dub
As far as the "pool cue" effect..... The plant in question still had branches (dead). I was more emphasizing the fact that a large plant, with stalk like a pool cue was taken all the way down by this blight in a very short time.
We're getting more rain today and its been cooler.....
lw
We're getting more rain today and its been cooler.....
lw
i think whodair is gonna be fine really. It looks to me like he's 14-21 days to chop and clearly they have something, but i dont see the yellowing that occurs with the strain of disease that killls so quickly. I think whodair's disease is an example that there are several different fungal diseases floating around and I think that's why most of the fungicides are labeled, "broad spectrum".
whodair, have you sprayed your plants with anything?
whodair, have you sprayed your plants with anything?
E
el dub
I'm now trying to decide if I want to spray any more copper soap this season. It has been rainy this past week and one strain doesn't finish for another month or so. The strains with a few weeks left are officially on their own, as far as black spot goes. But a friend in NorCal is sending me something organic that they use for late season mould.
lw
lw
ghost of sage
Active member
Whodair that is amazing that your plants never progressed past the first stages of the fungus!I am literally blown away because I tried 8 different strains and everyone of them got the leaf spot and once it started it didnt stop!I don't know after watching yours if it is the same as what everyone else is getting.Is it possible for stink bugs to sting pot like they do beans?The two look alot alike at the onset,matter of fact i had a friend that didn't know i grew and he was telling em about his pot plants and how the stink bugs were just killing it and showed me some branches and it was the same thing.i didn't tell him about the LC but I did tell another close friend that knew the guy and he told him to try it and it saved his ass too!But whodair I don't know bro ur plants have really got me stumped!DS I have now harvested about 5 elbows and Have not had one bad report about a funny taste or anything of the sort,matter of fact acording to a few some of the best they have tasted in 10 years so i think its 100% the way to go.I have not had to treat mine again since way back when this started and they are as healthy as can be.
Im puzzled by whodairs circumstance as well ghost.
Im also puzzled by how some plants seemed to be ravaged by it and other plants, maybe of the same strain right next to it, not hardly get it at all. Every single biddy early plant i grew got it and got it quick and all but one died from it even though i sprayed them 2X. 2 blue hash plants got it and died from it but 5 others hardly got it at all.
To the contrary,out of 9 sensi star plants. 3 got the disease but none of the 3 were damaged badly by it. Every SS was being grown side by side with Bearly and White wdow which had it bad and the SS either didnt get it or wasnt damged by it if it did get it. I had similar results last year. Last year, every plant i had got the disease including SS. But sensi star was the only plant that actually went ahead and matured even though it had the diseas.. Its obvious after 2 years that sensi star does have considerable resistance to it compared to the other strains ive grown..
My greenhouse White wdow is very succeptable to it, but unlike the Biddy Early, WW responds very well to treatment with LCopper. I had 8 plants with it and the disease was progressing rapidly. 2 treatments later the new growth looked healthy and the generalized yellowing stopped. With the Biddy early, the Lcopper did nt seem to have any effect at all. They died., .
Next year, ill treat in late july before i see anything and the second i see something, ill blast the hell out of them. If i had done that this year, except for the Bearly, i probably wouldnt have lost a plant.
Im also puzzled by how some plants seemed to be ravaged by it and other plants, maybe of the same strain right next to it, not hardly get it at all. Every single biddy early plant i grew got it and got it quick and all but one died from it even though i sprayed them 2X. 2 blue hash plants got it and died from it but 5 others hardly got it at all.
To the contrary,out of 9 sensi star plants. 3 got the disease but none of the 3 were damaged badly by it. Every SS was being grown side by side with Bearly and White wdow which had it bad and the SS either didnt get it or wasnt damged by it if it did get it. I had similar results last year. Last year, every plant i had got the disease including SS. But sensi star was the only plant that actually went ahead and matured even though it had the diseas.. Its obvious after 2 years that sensi star does have considerable resistance to it compared to the other strains ive grown..
My greenhouse White wdow is very succeptable to it, but unlike the Biddy Early, WW responds very well to treatment with LCopper. I had 8 plants with it and the disease was progressing rapidly. 2 treatments later the new growth looked healthy and the generalized yellowing stopped. With the Biddy early, the Lcopper did nt seem to have any effect at all. They died., .
Next year, ill treat in late july before i see anything and the second i see something, ill blast the hell out of them. If i had done that this year, except for the Bearly, i probably wouldnt have lost a plant.
E
el dub
I'm thinking the hortonova I wrapped around the plants didn't help matters as well. One strain has lost most branches that were protected by hortonova trellising. It looks to me like the trellising causes micro abrasions on stems, leaves, etc that let in the bacterial black spot disease.
On the other hand, a strain that didn't get much black spot damage is doing fine in the hort.
lw
On the other hand, a strain that didn't get much black spot damage is doing fine in the hort.
lw
