Septoria Resistant Strains

[thumper60]

Do you tank mix with citric? Don't see why that wouldn't work
Partial list of compatible tank mixes for ZeroTol, some of the things suprised me.

Active Ingredient (Examples) Compatibility
Azadirachtin( AzaGuard, Azatin O, Azatin XL) Yes
Neem Oil Yes
Mineral oil (Ultra-Pure Oil/SuffOil-X) Yes
Potassium salts of fatty acids No
Pyrethrins (Pyrethrum, Azera, Pyganic EC) No
Spinosad No
Sulfur Yes
Sodium Percarbonate No
Yucca Extract (Saponin) Yes

I have not mixed it with anything other than water I would never use anything with oil on budding plants. But the zerotol is great stuff I never heard of it till last yr from mandocat no more buying cases of 3% peroxide.

 

[DCcan]

I have not mixed it with anything other than water I would never use anything with oil on budding plants. But the zerotol is great stuff I never heard of it till last yr from mandocat no more buying cases of 3% peroxide.

Zerotol 2 is 27%, the Zerotol HC is 5%. (Hemp Cannabis)
I'm guessing it's watered down for consumer use vs commercial use.

 

[thumper60]

Just like vegetable and fruit growing, people in Maine can grow things that won't thrive here in Oklahoma! I feel very fortunate to have found a couple of plants with resistance to septoria. And it could be the individual plants. Cannabis is nowhere nearly as consistent in strain expression as Roma tomatoes or bell peppers. If you find a plant that does well, try to preserve the genetics and don't assume every thing with the same strain name will behave like the plant you prefer.

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.

 

[thumper60]

Zerotol 2 is 27%, the Zerotol HC is 5%. (Hemp Cannabis)
I'm guessing it's watered down for consumer use vs commercial use.

Yes I use the 2, 2 oz per gal of water. Its also a great cleaner for grow rooms- Green houses.

 

[keup.taylor]

Been growing outdoor in maine 40 PLus yrs I have tried many different microbes none worked on leaf spot, pm or bud rot its impossible the get fat ripe buds outdoor with out spraying here its just to cool an damp by early oct. Shit i wash all my outdoor bud in zerotol to remove bugs, dust an tree pollen.You can spend your whole life looking for a strain that does great outdoor in maine an never find it I perfer to do some IPM sprays an grow what i like an not worry about fungal spores. something else to remember mandocat is way south of maine strains that work there most likely wont work here.

thanks for the reply... I'm up cornish way..... I have never worked with zerotol, but I wonder, is that why most of the dispensary flower always has that similar wanky smell and taste compared to my fresh outdoor...seems to me anyway.....

Hearty septoria resistance genetics with a small amount of veg spraying would be my preference.

 

[thumper60]

thanks for the reply... I'm up cornish way..... I have never worked with zerotol, but I wonder, is that why most of the dispensary flower always has that similar wanky smell and taste compared to my fresh outdoor...seems to me anyway.....

Hearty septoria resistance genetics with a small amount of veg spraying would be my preference.

I dont think your gonna find resistance strains because it all depends on the weather dry yrs like this yr you might not see any an think wow i got the strain that kickass on leaf spot, then next yr we get a wet cloudy summer an that same strain dies from it, This is why preventive spraying is the way to go wet or dry getting to the finish line what matters. Are you seeing leafspot now because its been a pretty dry summer, Iam not far from you an seeing nothing at this point. An by the way all dispensary bud sucks an its not from using zerotol.

 

[mandocat]

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.

I believe septoria has only become an issue within the last 10 or so years here. I've known growers, (they were all outdoor growers), in this area for 45 years and don't recall seeing any kind of defoliation like this. Until 5 years ago when I experienced my first problems. Our summer humidity levels are higher than they use to be and I think that is part of the problem. I have heard people from other regions say the same thing. Mean Gene said he has never seen septoria in Humboldt, that place is generally very dry all summer, with dewpoints in the 40s.

 

[thumper60]

I believe septoria has only become an issue within the last 10 or so years here. I've known growers, (they were all outdoor growers), in this area for 45 years and don't recall seeing any kind of defoliation like this. Until 5 years ago when I experienced my first problems. Our summer humidity levels are higher than they use to be and I think that is part of the problem. I have heard people from other regions say the same thing. Mean Gene said he has never seen septoria in Humboldt, that place is generally very dry all summer, with dewpoints in the 40s.

Its always been around here back in the 90s when we grew in the swamps the alders were covered in it, It took a couple yrs of getting killed with it before we figured out what the hell it was Like you the rh around the globe has increased big time the last decade, I never ever seen pm until the early 2000s thats after growing in bogs for a decade now every yr i need to stay on top of it or it takes over.

 

[keup.taylor]

I dont think your gonna find resistance strains because it all depends on the weather dry yrs like this yr you might not see any an think wow i got the strain that kickass on leaf spot, then next yr we get a wet cloudy summer an that same strain dies from it, This is why preventive spraying is the way to go wet or dry getting to the finish line what matters. Are you seeing leafspot now because its been a pretty dry summer, Iam not far from you an seeing nothing at this point. An by the way all dispensary bud sucks an its not from using zerotol.

yeah, I'm am seeing differing levels of problems for different plants.... in last few weeks, debbie kinda got the septoria going that was pretty dormant, but definitely around on the dark, low spots on some strains...first ones to show it are my biggest problems now, as is always the case. I larf, lollipop, and lots of lst to give each branch it space, done early after 5-6 tops.......and sometimes it has f'ed me when september weather sucks and the septoria starts working into flower leaves....I used to spray acv and h202, but ahhhh, that seemed to help more knock down PM, which hasn;t been a problem a number of years now.

WHy does most dispo stuff always suck? literally bothers my sinuses and always has some wanker taste...like multi dispos, same shwag that looks good, but tumbled,rocky, and dry....like don;t think you are gonna press a dispo 1/8 and be like, jammin sweet number from that, more like open the car window and deposit 2 - 20's in the roadside ditch.

There's endless wet spots in western maine, like low, swampy spot between hills that never really dry out, like micro climates in those pockets... a good friend has a swampy spot right below his grow area. I used to grow with him back in 2016-2018 there and we never once had septoria problems..now, he struggles more than I do and I'm on a hill south of him with better wind, but also a wet, swampy spring area about 50 years below the garden..... what can you do, eh! I really do my best to keep grass mowed around my 8, 4 cubic yard dug holes (essentially 800 gallon pots), and the weeds cut on the stone wall and such....just get the area as dry as possible as early in the day as possible... that's been the strategy this year... looks like there will be minimal rain and leaf wetting this week in western maine, so the plants will likely not keep pushing the septoria around and up....good.

 

[keup.taylor]

I believe septoria has only become an issue within the last 10 or so years here. I've known growers, (they were all outdoor growers), in this area for 45 years and don't recall seeing any kind of defoliation like this. Until 5 years ago when I experienced my first problems. Our summer humidity levels are higher than they use to be and I think that is part of the problem. I have heard people from other regions say the same thing. Mean Gene said he has never seen septoria in Humboldt, that place is generally very dry all summer, with dewpoints in the 40s.

yes, septoria has really only become an issue in the last 5 years around me.... thanks for the salvisa pics....seeing that you are in OK, that's quite a different place than maine..... when did salvisa start flowering and harvest in your area?....kinda of an important question before I grab some of those beans....if it doesn;t turn until 8/20 and finshes 11/1.... some ski areas are open up here then. Is it indica or sativa leaning, or, couchy or heady and go stack some wood effects?

 

[keup.taylor]

Its always been around here back in the 90s when we grew in the swamps the alders were covered in it, It took a couple yrs of getting killed with it before we figured out what the hell it was Like you the rh around the globe has increased big time the last decade, I never ever seen pm until the early 2000s thats after growing in bogs for a decade now every yr i need to stay on top of it or it takes over.

I have seen PM problems arise when the RH is low, not higher like now. Your swamp growing was too wet for PM, but odd, I don;t see much the last few years and the general RH has been higher.... although, it was dry 2 summers ago when those moths raised hell and I don;t recall having to fight PM that summer.....who knows... I'm on a hill now which gets morning sun and good air flow, so mornings dry out quicker than lots of spots.

One thing I noticed with a friend last summer was ...her plants within a stones throw from the woods went bad quick with septoria. The ones she had in the field a frisbee throw away were fine and got to thrive in that 10 days of sun last early october..... those girls ripened up sweet for her but the others were trashed by the end of september....same genetics.

 

[alphapinene]

Northern NY here…currently running Peyote Cookies, Pineapple Chunk, Moonshine Ghost Train Haze, Cannatonic, and Charlottes Web. All plants are affected BUT the Pineapple Chunk (one lesion), the Cannatonic got hit the worst. One of my MGTH is barely affected as well..The septoria spread throughout but the lesions are still very small, hopefully we get drier weather to suppress it.