Help diagnosing a sudden onset issue

[booghy]

So visited my patch and noticed some significant yellowing on a good portion of the gals at one of my spots. Probably 2-3 significant like in the pic another 5-6 not as bad. Wasn't noticeable 5 days ago when I was last there. Been pretty warm last week 80-85 with really high humidity and lots of rain. In 45 gallon smart pots mix of FF ocean forest and happy frog and amended. Been top notch all year up to this point only top dressed once so far. Never been over watered had small amount of wilting on 2 occasions so far this year. All the girls are about 6-8' some maybe taller. I've slacked on getting them thinned out and some of the bottoms removed was going to address that this week.

Anyway....walked in to find girls looking like this.

Given current weather leaf septoria caught my eye. Which really sucks. I picked up some fungicide and planned on cutting away all affected areas and thinning out middles and removing lower branches to prevent spreading. Was hoping someone could confirm before I do anything.

 

[booghy]

Close up affected leaves.
https://www.icmag.com/ic/album.php?albumid=23409&pictureid=1638231&styleid=101

And a healthy one yet to be affected
https://www.icmag.com/ic/album.php?albumid=23409&pictureid=1638233

 

[hamstring]

Leaf spot is a bitch my brother. I like liquid copper but its not a completely solvable problem or at least not in my experience. It will hang around until 2nd week of September and it will continue to defoliate you plants. If its get bad enough it will attack the small bud leafs. No matter what it will diminish your yields. I like to spray with liquid copper but only until real budding starts.

The best way to combat my biggest nemesis is with prevention rather than cure. Start spraying 2nd week of July and spray every two weeks until buds appear. You can mix the liquid copper with your insecticide, i use sevin, to cut down on labor.

Good luck

 

[booghy]

Thanks for the response hamstring. Over 100 views and your were the only one that responded. I cut away all affected leaves and removed from site. Thinned out the middles and sprayed with fungicide. Went back today after being there Wednesday and it doesn't seem to have gotten any worse. Prob 20-40% of foliage affected some much worse than others. Also they seem behind compared to other 2 sites nearby. Really sucks too all plants were 7-9 ft. Great weather all year and 1 bad week costs me a bunch. But onward and upward!

 

[hamstring]

booghy

There is a leaf spot sticky in the outdoor forum most probably assumed you would end up there.

I have never heard of a guerrilla grower defeating leaf spot you just have to roll with the punches. I never saw the stuff until much later in my life but once it hit my area I have had to deal with it in some way or other every year.

Dont worry my brother you will still pull some nice buds out of all your hard work. Its a guerrillas life you dont have the control of a typical outdoor grow.

Good luck and please post some bud shots before harvest.

 

[daddylonglegs]

When was the single top dress ? Looks like the mobile nutrients are being used up since it's fading from bottom up. Are the leaves staying yellow and alive ? Or quickly turning brittle and crispy ?

 

[daddylonglegs]

i do see some brown spots on the other pics ....

 

[daddylonglegs]

https://www.icmag.com/ic/attachment.php?attachmentid=375738&stc=1&d=1472123998

To my knowledge this is leaf spot

Those brown spots in your pics for me have shown in in defectiencies and same spots with fungus gnat infestations ... along with the fading leaf

 

[daddylonglegs]

It's suprises me a nmu because you said you were there a couple days ago , and the spots were already brown , where it does take some time for the yellow spots to mature to brown ... Just some food for thought have a good day nice plants !

 

[booghy]

So I took most of my patch. I will put a bunch of pics up of what happens when you have full blown septoria wreak havoc on your crop. What could've been. Anyway I do have one question. Does anyone see an issue with hanging the whole plant with the affected leaves on? I don't think it's current haven't noticed any new progression for at least 2 weeks now but was curious if any harm could be done to the buds by drying with the fans on.

 

[Dankwolf]

Never heard of any one dealing with septoria (" fungus") in my 14 + years before . so if is truly is septoria or a fungus like it i would definitely not leave any fungus infected parts on it just seems like a bad idea to me if that is what it is . are you 100% thats what it is ? Maybe some one with more experiance with outdoor can better help . but i would throw a pic of it up you know some one is going to ask lol