Septoria Resistant Strains

mandocat

Well-Known Member
My first casualty of this summer's septoria. Always amazes me how fast the sugar leaves die back into the plant! Will only be running strains that have shown resistance next summer, thankfully I have a few to choose from.leaf septoria (1).jpg
 
My first casualty of this summer's septoria. Always amazes me how fast the sugar leaves die back into the plant! Will only be running strains that have shown resistance next summer, thankfully I have a few to choose from.View attachment 5420640
yeah, I hear you... I did a full larf out and lollipopping today on 9, 1+ pounder sized girls........ we have about 8 days of good weather coming and I have found if I stay on top of things I can keep the Septoria from the sugar leaves, but at some point I loose it if the weather stays bad......

your plants are too big to get into a big larfing program..... but any amount helps in my experience.... Failure to snip down at the base of a leaf leaves the starting point for infections.... so proper larfing today was more work than I like on any one plant..... but it is what it is.......

Septoria resistance with an early finish, no ruderalis genes, 20+%, no heavy indica, is what I'm looking for.....

Ugh, found some powdery mildew on one side of a big MOH girl today..... just hacked that side of the plant off.....

Pineapple Muffin is really an all around champ for me this year, so far..... Tropicanna Poison is a septoria resistant champ, but ugh, aphids love her too.... I have a TP next to a PM in a row, not touching, and the PM has virtually zero aphids and barely any Spetoria ( had one split in another garden area and half the plant rested on the lawn for 12 hours before I could get to her and strap her back together... problems like that are always a sure start of infection problems... but minimal on the repaired bush).... next plant down, Made of Honor, Septoria and some aphids and now some PM,.... next plant down the row, Gorilla cookies Fast, both Septoria and Aphid problems..... I have two other GGF's which are much better, and 2 other MOH's having some septoria problems (and a late flowering start on all of them)...Odd though, if you looked at the plants from 20 feet away you;d think the Tropicannas are healthy as horses with sticky, purple flowers done in 3 weeks...get up close and turn those leaves over and there's an aphid party..... ugh.... Candy Store girls hanging tough but vulnerable.... mixed Nutz, mixed results, but an early flowerer, so done by 9/20. second round of autoflowers thriving, but not as much as the ones that had the june/july weather.... I have yet to see an auto flower that doesn't foster at least some septoria.... they move along quickly, so just hard larfing and regular LST work keeps them dry and lets them finish in the summer's sun, but work.

Read up on Super Wreck for septoria resistance , Mendo 20....also, some of Humboldts may be good to consider... it would be interesting to run Pineapple Upside down cake right next to Pineapple Muffin to see if they have different septori resistance... it would help clarify where the septoria resistance I am seeing in Pineapple Muffin is coming from. I gave 2 PMs to a buddy, one from seed, one a clone. They are both high septoria resistant like my 3. The cloned one started flowering a week earlier than all the other seed started girls. PM's only read as 22% so likely not the best wash/press material.... We'll see how they finish.

I think all these septoria problems are being fueled by wildfires and a humid planet.
 

mandocat

Well-Known Member
yeah, I hear you... I did a full larf out and lollipopping today on 9, 1+ pounder sized girls........ we have about 8 days of good weather coming and I have found if I stay on top of things I can keep the Septoria from the sugar leaves, but at some point I loose it if the weather stays bad......

your plants are too big to get into a big larfing program..... but any amount helps in my experience.... Failure to snip down at the base of a leaf leaves the starting point for infections.... so proper larfing today was more work than I like on any one plant..... but it is what it is.......

Septoria resistance with an early finish, no ruderalis genes, 20+%, no heavy indica, is what I'm looking for.....

Ugh, found some powdery mildew on one side of a big MOH girl today..... just hacked that side of the plant off.....

Pineapple Muffin is really an all around champ for me this year, so far..... Tropicanna Poison is a septoria resistant champ, but ugh, aphids love her too.... I have a TP next to a PM in a row, not touching, and the PM has virtually zero aphids and barely any Spetoria ( had one split in another garden area and half the plant rested on the lawn for 12 hours before I could get to her and strap her back together... problems like that are always a sure start of infection problems... but minimal on the repaired bush).... next plant down, Made of Honor, Septoria and some aphids and now some PM,.... next plant down the row, Gorilla cookies Fast, both Septoria and Aphid problems..... I have two other GGF's which are much better, and 2 other MOH's having some septoria problems (and a late flowering start on all of them)...Odd though, if you looked at the plants from 20 feet away you;d think the Tropicannas are healthy as horses with sticky, purple flowers done in 3 weeks...get up close and turn those leaves over and there's an aphid party..... ugh.... Candy Store girls hanging tough but vulnerable.... mixed Nutz, mixed results, but an early flowerer, so done by 9/20. second round of autoflowers thriving, but not as much as the ones that had the june/july weather.... I have yet to see an auto flower that doesn't foster at least some septoria.... they move along quickly, so just hard larfing and regular LST work keeps them dry and lets them finish in the summer's sun, but work.

Read up on Super Wreck for septoria resistance , Mendo 20....also, some of Humboldts may be good to consider... it would be interesting to run Pineapple Upside down cake right next to Pineapple Muffin to see if they have different septori resistance... it would help clarify where the septoria resistance I am seeing in Pineapple Muffin is coming from. I gave 2 PMs to a buddy, one from seed, one a clone. They are both high septoria resistant like my 3. The cloned one started flowering a week earlier than all the other seed started girls. PM's only read as 22% so likely not the best wash/press material.... We'll see how they finish.

I think all these septoria problems are being fueled by wildfires and a humid planet.
Since I am seeing good resistance in my 2 The Work plants, I'll be running a bunch of his crosses outdoors next summer. He has crosses made with Deathstar, Dosi Mints, Gary Payton, Gorilla Glue and Coca Cola/Rootbeer. Plus crosses I made with the resistant Salvisas. I had aphids all over a plant a couple of months ago and left it alone. After about a week I went out and it was covered with lady bugs, and they cleaned the entire plant within a day. Sometimes nature surprises you!
 

hazeman1911

Well-Known Member
Let's make a list of Septoria resistant photoperiod cannabis strains. I'll put up an autoflower list thread too.

Septoria leaf disease is becoming a growing problem that is literally killing outdoor, organic cannabis growing.

I have seen the following septoria related strain characteristics in the northeast, usa, western maine, this summer...

Tropicanna Poison - Sweet Seeds...... literally zero septoria this year, and it's getting tough out there.... she didn't clone easily.. flowered end of July and supposedly rippens early, so she'll be in 9/20-25, before cold, dank weather pushes stuff into the flower.... nice smells already.
Pineapple Muffin - Humboldt..... Higher septoria resistance, but small amount of under larfing needed to keep her clean in bad conditions...lots of inside larfing needed with these girls, like grab the first couple/few nodes after every split or you'll get socked in, but still septoria is low even with heavy inside growth.
Made of Honor - Mendo20....... Vigorous grower so she kinda stays ahead of it, but it's there and it will depend on how wet september is as to whether septoria will creep into the flower leaves and end her days before her time.... some plants better than others, either pheno or grow spot, who knows!
Candy Store..... Ethos...... again, great growth so she keeps ahead of it, but it's there and if you don;t larf it out, septoria will win....depends on Sept.... grown this girl before, seeing the same thing, but she had a great finish on a good fall.... I won;t run her again outside, too much risk and larfing, but in drier climates, surely a great choice.
Gorilla Cookies FF....... 420 Fastbuds........ no sir, had to larf her right up to the new growth last week.... yeah, she's vigorous, and supposedly flowers quick, but she's late to turn and full of septoria.... no sir, never again
Mixed Nutz .... NASC freebie........ aaaah, ran her with hopes...she's puckered up with septoria pretty good.... once I spread her out and larfed her better, she's hanging tough....early flower turn, so she won;t have to run out much beyond sept 20..... but nah, not the septoria resistance I want.


note: just cause something says fast flowering doesn't mean it's a good choice for northeastern usa..... your better choice parameter would be, septoria and PM resistance with an oct1-10 harvest... SOmetimes fasts flowers turn late so it doesn;t matter that they're fasts as you are still in mid Oct for her to finish right........some are vulnerable to light and heat stress flipping early in veg before you want...... some are more likely to hermie...... some host septoria easily.......so it seems..... but yes, a fast flower, early finish, +20thc flower that is septoria resistance is ideal. Tropicanna Poison and Pinapple Muffin fit that bill...... let's see how they finish.

Add to the list..........
Good to no yes it's getting rough this Guicy banger is not resistant I'd take a closer pic but it's so bad might spread digitally
I hear you I just think septoria is a lot more widespread where you are Here it can be controlled easy with early prevention most people dont even see it until its all over a plant I can see one little spot a mile away because I have lost whole outdoor plots to it over the yrs.
What are you guys using to combat the sept this year a few of mine got it I think I ran out of soil
capacity aswell I no you two have been around and I respect your opinions
 

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thumper60

Well-Known Member
Good to no yes it's getting rough this Guicy banger is not resistant I'd take a closer pic but it's so bad might spread digitally

What are you guys using to combat the sept this year a few of mine got it I think I ran out of soil
capacity aswell I no you two have been around and I respect your opinions
I used copper to keep it in check for yrs,this yr i tried sulfur with great results but Iam growing a new strain so who knows one thing for sure you need to start spraying before you see damage same with pm. Because once flowering start copper an sulfur are a no go in flower I would use ho20 3% or citric acid in flower to hold it off.
 
Good to no yes it's getting rough this Guicy banger is not resistant I'd take a closer pic but it's so bad might spread digitally

What are you guys using to combat the sept this year a few of mine got it I think I ran out of soil
capacity aswell I no you two have been around and I respect your opinions
larf her out until you can see through her and hope for good weather.... you might be surprised...just the increased air flow alone and the decreased leaf touching will slow that down, and with the right weather, she just might rippen up like a champ.

I keep leaf mold tea feeding right into middle september...... I think this helps a lot cause after larfing out, those younger leaves left really thrive with a few good days of weather.... that won;t happen if you are trying to die your leaves back like some might do indoor.... problem is, chem feeding may be too much.... leaf mold is like 2-2-2, or even less.... I throw some lime (with mg) and stove ash in that tea... It's a gentle feed.

Nice little plant..... hope she makes it... when you larf, cut way back at the leaf stalk base....work, work, work...sometimes you win, sometimes you lose.
 
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I used copper to keep it in check for yrs,this yr i tried sulfur with great results but Iam growing a new strain so who knows one thing for sure you need to start spraying before you see damage same with pm. Because once flowering start copper an sulfur are a no go in flower I would use ho20 3% or citric acid in flower to hold it off.
problem I have when spraying during flower is I am assaulting my lady bugs....... that just feels wrong
 
I used copper to keep it in check for yrs,this yr i tried sulfur with great results but Iam growing a new strain so who knows one thing for sure you need to start spraying before you see damage same with pm. Because once flowering start copper an sulfur are a no go in flower I would use ho20 3% or citric acid in flower to hold it off.
sulfur is more appealing to me, knowing my soils could probably use a little sulfur..... what sulfur product are you using?

I am still hunting for genetics.... looks like there's is some septoria resistance in various trainwreck genetics.... I shall see.
 

thumper60

Well-Known Member
problem I have when spraying during flower is I am assaulting my lady bugs....... that just feels wrong
Well if you dont have aphids an mites in flower not reason to worry about ladybugs thats my thinking, They shit in buds just like all bugs.
 

thumper60

Well-Known Member
sulfur is more appealing to me, knowing my soils could probably use a little sulfur..... what sulfur product are you using?

I am still hunting for genetics.... looks like there's is some septoria resistance in various trainwreck genetics.... I shall see.
 

thumper60

Well-Known Member
I use a micronized sulfur from bonide its made to go thur a sprayer, Regular sulfur does not dissolve in water plugs the nozzle up.
 

DoubleD5374

Well-Known Member
Fantasy land from cult classic seeds
Kurple fantasy x white runtz

No signs of septoria at all , sitting next to 8 ft wide / 8 foot tall monster gorilla glue with light signs of septoria , my greasy runtz are insanely susceptible to it - and are dying because of it - I popped 100 beans , 78 keepers - and so far almost every pheno seems to not be able to handle it .
I did however find one pheno that is absolutely fire !
 

mandocat

Well-Known Member
Fantasy land from cult classic seeds
Kurple fantasy x white runtz

No signs of septoria at all , sitting next to 8 ft wide / 8 foot tall monster gorilla glue with light signs of septoria , my greasy runtz are insanely susceptible to it - and are dying because of it - I popped 100 beans , 78 keepers - and so far almost every pheno seems to not be able to handle it .
I did however find one pheno that is absolutely fire !
Thanks for sharing strains that you find resistant, and sharing the ones that don't do well! This is how we move forward, I think.
 

DoubleD5374

Well-Known Member
Thanks for sharing strains that you find resistant, and sharing the ones that don't do well! This is how we move forward, I think.
I’ve noticed different phenotypes of the greasy runtz line are definitely more resistant than others . I have some that are half dead from it - as well as others that are 6-7 foot tall 1lb plants that don’t have a single spot . It’s kind of odd , then some in the middle ground . I’m gonna see what happens closer to the finish line and update .

this shit has become a massive problem for us outdoor growers no doubt

I jumped the gun on the previous post before observing the entire field . I have 20 or so that aren’t seeming to be phased by it at all

IMG_2833.jpeg
 
I’ve noticed different phenotypes of the greasy runtz line are definitely more resistant than others . I have some that are half dead from it - as well as others that are 6-7 foot tall 1lb plants that don’t have a single spot . It’s kind of odd , then some in the middle ground . I’m gonna see what happens closer to the finish line and update .

this shit has become a massive problem for us outdoor growers no doubt

I jumped the gun on the previous post before observing the entire field . I have 20 or so that aren’t seeming to be phased by it at all

View attachment 5422857
wicked, eh.......

I have a 7 foot gorilla cookies FF that I'm about to abandon to septoria..2 other doing just ok.

Tropicanna poison is still nearly vacant of any septoria..... almost done.. sticky and terpy

I won't be running Made of honor again.... late to start flowering, all 3, and not very septoria resistant.... Oct20 just aint gonna cut it...maybe they will pack it on quick.

All 3 Pineapple muffins are pretty much clear of septoria, spare a few under, old leaves....... we'll see if they finish frosty....starting to smell yummy

Candy Store...hanging tough.

Mixed Nutz....just about done.... lots of smaller, superdank and sticky solid nugs... but she wasn;t very septoria resistant, had to larf her hard, but once spread out and breathing, she did alright over the last few weeks...snagged a few preharvest arms today for a little press sample.... the press don;t lie.

My Thai auto (ethos).... great growth and septoria resistance....nice

Apples and Bananas auto (ethos)...... not real septoria resistant, but boy these girls are dank if you can get them near finish.... 2 still running, 2 finished mid summer.

Banana SPit Auto (ethos) - not the best veg compared to other ethos auto girls I have run.... we shall see.. seems fairly septoria resistant.
 
Thanks for sharing strains that you find resistant, and sharing the ones that don't do well! This is how we move forward, I think.
wow, I saw horrendous septoria yesterday in a bigger grow.... Monstrous....

SF'NG was the only plant that had even slighting less septoria. All the skittlez crosses had it bad.

Here's an interesting observation.... I have seen plants that were essentially "shut down" in the end by septoria, a forced harvest.... now this harvested stuff all ends up having wanker terps.... like every strain smells kinda the same, kinda off, like soured and punchy, not bright, zesty, fruity, gassy..... just wanker. And, of course, those buds never get b'donked out as much cause the septoria basically forced harvest ..... something is always off with these highly infected plants.

Anyhow, we did a little high five back at the house last night.... as my growing partner and I have worked hard larfing, spreading and lillipopping our plants....so if you walked around you'd see a bunch of mushroom looking plants all larfed underside.... I topped like 6 times, so I had a lot to work with laterally on 1 pd sized plants.... hardly any septoria right now, but it;s lurking around and the wrong weather at the end of September might hatch it again, but we'll almost be done by then.

I did have this weird, silvery leaf disease show up on one of my Pineapple Muffins... one of my big girls. At first you might think it's PM, but no... it's like a shiny, silvery leaf disease of some sort. Suggestions are it's a rose bush family fungus, and it's from my heavy larfing a few weeks ago.... that's the hypothesis.... but it does beg the question, is some sort of post larf spraying a good idea? Even a watered down milk spray might be all you need after larfing in veg/early flower.....btw... every time I use a milk spray for PM prevention as part of IPM I always see raging healthy leaves on plants the next week. I think I am foliar feeding milk. I'm not sure why I have not made it manditory to water/milk, 80/20% (and 1 teaspoon per gallon of centless castile soap) spray stalks and stems after larfing......hummmm? 5 bucks and an hour's work for a little piece a mind....next year!

Tropicanna poison coming in this week....still minimal septoria.... so friggin fruity and terpy, but not super dense, nice looking though... aphid problems really decreased with the cold nights recently.
Mixed Nutz came this week.... pre harvest sample pressed 27%...wowzer....plants were vulnerable to Septoria, but did ok once I larfed and spread her out...not big flowers, you could put them in a muzzle loader... not big plants either, but glad I grew
Pineapple Muffin - still showing hardy Septoria resistance, but again, one of my girls has this silver leaf thing going on
Made of Honor.... real late to turn, now packing it on.... just ok with Septoria resistance, but those girls all needed a lot of work, now doing good as we head to mid flower
Gorilla Cookies FF.... coming along, one girl more Septoria vulnerable than other 2..... an she;s the big girl too, bummer, but she'll make it with scars.
Candy Store.... you know, I knock her for being some what Septoria Vulnerable, but give her a larf and a good couple weeks and she really shines., hang in there girls, you got 4 more.

My Thai auto ethos...good grower, high septoria resistant so far....
Apples and Bananas auto ethos.... septoria vulnerable, let her breath well and she'll put it out.
Banana Split Auto ethos - just not the same vigor as the other two, but pretty good septoria resistance.

I ran a bunch of other autos this summer, but not getting into them right now. Just read up on each auto you buy. SOme of these white label seeds grow stuff you, me, and everyone else could care less about.
 
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Thanks for sharing strains that you find resistant, and sharing the ones that don't do well! This is how we move forward, I think.

Pineapple Muffin.... Humboldt..... high septoria resistance throughout plant's life....I grew 3 from seed and a friend gre another 2 I started for him. I can confidently say, Pineapple Muffin is great for a oct 1-10 harvest of a moderate thc, great smelling, ok pressing, easy going, not day killer high. They were easy to manage because of disease resistance, but, all had lots of inner growth requiring some heavy larf days to avoid endless popcorn inner stuff....and yeah the colas stacked out nice, but they are not an easy trim. I topped the plants 5 times, requiring some string support on main stalks and they were generally moderate on it's self supporting attributes. Plants smell like concord grapes mixed with a grape jolly rancher when rippened out fully. I will run again.

Tropicanna Poison..sweet seeds.. purple pheno..... high septoria resistance throughout life. but high aphid affinity too. Early harvest (sept 15 in maine). It's super terpy, moderate density, ok presser.... i'm not super excited about the terp twang it has, but the rosin is kicky to the head.,,,probably won't grow again


Candy Store.. ethos.... we had a real dry fall in maine this year, so septoria really stayed under control with a little larfing of the 2 candy store girls .... champ grower this year....dank and fruity, great presser.... 10/5 harvest..... this is my second time running candy store plants....consistent pheno generally.... strong branches, big plants, decent for hand trimming, sticky, fruity girls requiring moderate level of plant arm spreading and larfing......haven't been disappointed yet with candy store.... will run again., but a crappy fall would be tough on these girls.

Made of Honor .... mendo 20...... all 5 were moderate septoria vulnerable..... but, but, but..... because of larfing and plant management and a dry fall, these girls are my absolute champs this year.... their characteristic of growing throughout flowering really was an asset to their success as we had a dry, sunny fall and I had larfed the septoria out hard in late august..... just awesome stuff, some early picked samples pressed 25%..... harvested the rest on 10/8 in western maine.... maybe coulld have pushed them another few days, but not on the smaller couple plants..... just ok to trim.... I'd run them again, but without a decent fall. not sure if they would be so great.... I wouldn't over plant and bet the farm on them if wetter septembers are common.
 
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