need some help figuring out my problem

[jackel]

so i just replaced all my soil this year, and went to smart pots. veg was going great. once flowering started, i noticed some massive yellowing on a few plants. adjusted pH, still didnt help. was told it was a fungus in my soil, and did what i was told to try and push the fungus aside. ended up losing one plant. and 3 more arent happy (not sure what ill even get out of them).
now most of everything else in the garden is starting to yellow and drop leaves. i did 2 treatments of met52 about a week-2 into flower thinking maybe russets.
im not sure what else to do this late, if anything. heres some pics.

 

[Noonin NorCal]

I have a few that seem to have that same problem, yellowing leafs way early. A buddy came by and said it could be some kind of root rot and to do a soil drench with Actinovate, Ive been lagging though and haven't done it yet. Not much help here but i hope someone chimes in and helps you out

 

[jackel]

I did a soil treatment of fungicide then a soil innoculent

 

[Foreverfamily]

i would recommend a rotation of foliar applications using pfr-97, regalia, and grandevo..

 

[MrBungle]

How often do you have to water? what size are those smarties65 gal?

 

[jackel]

smartpots are 300gal. i water about 2x a week, approx 50 gal each plant, each time.
i dont really think i should be foliar feeding anything so close to harvest, esp without knowing what im spraying for.

 

[ronbo51]

Go to leaf spot disease sticky'd here at outdoor forum. Probably not that though.

 

[TheOutlawTree]

Hey jackel... Are all of the plants that are showing symptoms from the same mother plant? Or were they started from seed?

It could be Fusarium. I have been struggling with fusarium in my sealed indoor room for a while now.

Outdoor's its not as big of a deal, as far it spreading to other plants. A sealed room makes it very tough for me indoors.

If it's fusarium there isn't really anything you can do to stop it, once the plant is infected its infected- there is nothing that will kill it. The only thing you can do is try and strengthen your plants by stimulating their immune system with some Chitosan, or Aspirin pills.

I lose about 30% yield from the fusarium infected plants indoors, but its not a complete loss.

You should plan on marking all the pots with plants that have the same symptoms and send in a sample of one of the plants stalk / crown of roots for testing of fusarium after you harvest.

If you start seeing random flowers that appear finished all of the sudden (red pistils, no growth) that's a sign of fusarium indoors.

 

[jackel]

Everything is from seed starts. I bought all new soil and smartpots this year. Soil supposed to have a guarantee, not sure how that's going to work.
It started on a few but was told to treat everything with fungicide and then Bio S.I. Once I did that it seemed everything started yellowing.

 

[jackel]

some of the bases of the stems (on the one i removed, and a few others thats barely surviving) had some more brown callusing. typically my trunks do get brown and callused because of the rapid growth.
i havent seen any gray/blueish mold.

 

[EastBayGrower]

i vote fusarium also... seem it abunch outdoors, idk what dude was saying when he said its a bigger deal indoors, ive personally only EVER seen it outdoors, seems like in norcal, every 25+ plant patch loses 3 or 4 to fusarium each season ime...

avtinovate drench and id let em dry out good personally, good luck and i hope you can harvest something

 

[Cep]

Its certainly a root issue and could very well be hemp canker (Sclerotinia sp.). After this season is over dig up a much of the root ball as possible and burn it or get it off the poroperty. Eventually, the infected base will get mushy later in the season if its canker. If its fusarium or rhizoctonia the base will not get mushy but the stem will get a rough, striated appearance and the branches will be weak and break easily.

 

[bee23]

Mine are doing the exact same thing....is your water well water? Mine seem to green up, lose less leaves when I push magnesium. did you scope for russets?

 

[NorCalLurker]

yeah i get the same shit, some places get it worse than others even though we use the same soil and food. never really figured it out. Did they look fine through veg? i always have rockstar plants till a few start to do that in flower. I don't believe its russets, just saw a few patches around clearlake with em (its bad up there) and they make the leaves canoe in a strange way and the buds start to turn brown and ugly starting from the bottom to the top

also, what soil are you using??

 

[MrBungle]

yeah i get the same shit, some places get it worse than others even though we use the same soil and food. never really figured it out. Did they look fine through veg? i always have rockstar plants till a few start to do that in flower. I don't believe its russets, just saw a few patches around clearlake with em (its bad up there) and they make the leaves canoe in a strange way and the buds start to turn brown and ugly starting from the bottom to the top

also, what soil are you using??

That to me sounds like Ca def or maybe some rootzone pH issues

 

[jackel]

Everything but 2 vegged beautifully as always. But once flower started, the 2 slow vegging ones yellowed and had purpling of the leaves. I thought this odd, so I fed some cal, mag. That didn't seem to help. They got worse and I eventually pulled one as it died. I took a sample of the stalk as there was a brown mold inside the stalk (where the rootball is) to an ag specialist. He said he was pretty sure it was Botryosphaeria, a canker. Suggested I foliar with a fungicide (plant doctor), then foliar with Bio S.I. At the strength he suggested it caused burning on a lot.
After that, they all started yellowing.