Porky82
Well-known member
Maybe you space has become contaminated.
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12x Don King
- Thread starter PH donner
- Start date
You two are barking up the wrong tree. Which wouldn’t be so bad if the comments weren’t so wrong.
Botrytis is everywhere, it’s in the air and does well in the dutch humid mild climate. It’s literally everywhere. Sure poor ventilation and such risk plant infection but it’s not nearly that simple, especially not in PH Donner’s case who you can count on having a proper setup and clean space.
Botrytis thrives on green and far-red, light that the plants use less and penetrates. The radiation from HPS creates higher temps inside fat buds which directly makes it harder for botrytis to grow and spread.
link: Light plays a major role in the development of botrytis.
Botrytis is everywhere, it’s in the air and does well in the dutch humid mild climate. It’s literally everywhere. Sure poor ventilation and such risk plant infection but it’s not nearly that simple, especially not in PH Donner’s case who you can count on having a proper setup and clean space.
Botrytis thrives on green and far-red, light that the plants use less and penetrates. The radiation from HPS creates higher temps inside fat buds which directly makes it harder for botrytis to grow and spread.
link: Light plays a major role in the development of botrytis.
PH donner
Active member
What I wanted to say, I have been around forums for a long time. I know the stories about botrytis and how to prevent it. To come back to your comment about air and ventilation. If I were to double that, I would also double the number of bortytis spores along my plants. Just as said by Sativied it is everywhere.
You nailed it! @Sativied
Thanks for the link!
I didn't know this was documented. I only experienced it and used my common sense on it
Porky82
Well-known member
So if botrytis is everywhere in the Dutch climate why aren't all the growers getting bud rot.What I wanted to say, I have been around forums for a long time. I know the stories about botrytis and how to prevent it. To come back to your comment about air and ventilation. If I were to double that, I would also double the number of bortytis spores along my plants. Just as said by Sativied it is everywhere.
You nailed it! @Sativied
Thanks for the link!
I didn't know this was documented. I only experienced it and used my common sense on it
I live within 15km of 6 wineries which is where botrytis thrives and with proper environmental conditions I haven't had rot in over 7 years of indoor growing.
All bud rot is a result of the environmental conditions the plants are growing in.
Not sure how green and far red can reach inside "fat buds" or how HPS "radiation creates higher temps inside the fat buds" but if that's what you guys believe that's up to yous.
Dime
Well-known member
JMO but I agree spores are everywhere. The reason everyone doesn't get it is because their environment isn't well suited for it to flourish and some strains have natural resistance to it like big freeze which doesn't rot even with continuous rain on well formed buds, I normally grow c99 behind my house and it hasn't rotted and this year I grew 5 red congo plants and on 2 of them i could see a cple of buds with it already and I cut them off ,so that tells me 3 red congos have better resistance than the other 2 and c99 as a whole has much better resistance to it than that strain. Just like mold in basements it's because the conditions are met for it to grow.
The switch from HPS to LEDs is the problem that my friend is talking about and if you are not hearing that then you may miss something. High-intensity discharge lamps have a different impact on environmental humidity than LEDs.
PH donner
Active member
My swing fan of 40cm on setting 3 on a surface 120x130cm is not that small imo
If air circulation is not in order according to your reasoning, why does not rot occur lower in the crop where the air humidity is higher than at the top of the largest buds that receive the most air movement?
1.5 years ago I had exactly the same reasoning, rot mainly occurs when the climate is not in order, but I now know better.
PH donner
Active member
it beats the number of times harvested per year x 4Yeah mate no worries. I grow outdoors so I have probably more problems then he has. You can't beat growing under the sun
Today marks the start of week 6 and I am feeding them Ec 1.2 again. After that, only clean doses of Ph 5.5. I only give these gifts through the bottom of the saucers and no longer through the top so as not to create extra humidity at the bottom of the crop. I also hung the lamp at a height of 50cm and it is still at 60%.
The fleshy hard buds nicely show the origins of the original legendary Jack Hair from SeniSeeds in the mid-90s.
Porky82
Well-known member
I run twice the amount of fans in that size.
Like I said I live very close to several wineries so bortytis is also rife in my area like yours.
Bud rot usually occurs in the biggest buds because inside the bud is protected from air movement.
That's why the light power is not really relevant because the rot starts inside the bud where there is no light.
Anyway they looking real good!
Keen to see how they look in couple of weeks.
Light intensity is not the cause of bud rot. It's always around. It just needs the proper environment to reproduce
You have to add some warmth to your environment when using LEDs to replace the heat given off by the HPS. This will solve many problems.
Lower temperatures slow photosynthesis, limiting a plant's capacity to effectively handle high amounts of light.
Plants with cooler temperatures struggle to balance energy production and dissipation when exposed to higher light levels. This can affect how efficiently the plant can manage stress from intense light, further reducing its ability to thrive and making it more vulnerable to diseases caused by fungi, bacteria, viruses, and other pathogens.
Couple that with higher humidity levels from cooler temperatures (I don't know about low air movement; it's not stated, but if you have bud rot, I imagine it.
It's a setup for problems.
Plants look great
, only you can see if they have rot in the bud
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Porky82
Well-known member
I agree completely. I do run 2 greenhouse bar heaters in my 8x4 for at least 5 months of the year.Light intensity is not the cause of bud rot. It's always around. It just needs the proper environment to reproduce
You have to add some warmth to your environment when using LEDs to replace the heat given off by the HPS. This will solve many problems.
Lower temperatures slow photosynthesis, limiting a plant's capacity to effectively handle high amounts of light.
Plants under cooler temperatures struggle to balance energy production and dissipation when exposed to higher light levels. This can affect how efficiently the plant can manage stress from intense light, further reducing its ability to thrive.
Couple that with higher humidity levels from cooler temperatures (I don't know about low air movement; it's not stated, but if you have bud rot, I imagine it.
It's a setup for problems.
Plants look great
PH donner
Active member
I find it funny that all kinds of solutions are being introduced that make it all very difficult. Add heat , more ventilation, extraction. Disinfect. While setting the dimmer to 60% prevents everything and I can sit back and relax. The proverbial one “ twee vingers in de neus” = easy peasy.
That's right, you can't find her either @Onboard The mother is a Jack Hair cutting that has been owned by a friend since the 90s. This was accidentally fertilized and the Dons were born last summer ,cutting only
It's true that I can tell if there's rot in it. @growsjoe1 (although I am not there, but the caregiver who observed it for 2 weeks and sent photos) Although it is often clearly visible on the buds that visible small leaf damage is shown. But you don't think I would leave the crop if it were rotten, do you?
If so, the scissors go in immediately!
This is a summer run, let's see the winter run with a much lower temperature.
Meanwhile, 90%lv outside the Don's space
No dehumidifier can compete with that
Dank hobbybobie voor het wateren 🫶
That's right, you can't find her either @Onboard The mother is a Jack Hair cutting that has been owned by a friend since the 90s. This was accidentally fertilized and the Dons were born last summer ,cutting only
It's true that I can tell if there's rot in it. @growsjoe1 (although I am not there, but the caregiver who observed it for 2 weeks and sent photos) Although it is often clearly visible on the buds that visible small leaf damage is shown. But you don't think I would leave the crop if it were rotten, do you?
If so, the scissors go in immediately!
This is a summer run, let's see the winter run with a much lower temperature.
Meanwhile, 90%lv outside the Don's space
No dehumidifier can compete with that
Dank hobbybobie voor het wateren 🫶
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...so yeah, lowering the amount of light will help with the stress caused by light intensity.
Still, the fact remains that your environment is too humid(yikes, 90%) and too cold... becoming a possible breeding area for all kinds of nasties. This needs to be addressed...properly. By reducing the amount of humidity with a dehumidifier if you can afford one. If not, that is your weakest link. You'll have to work around that and try to supply more air movement. The plants are packed in there. If the space is at 90%, without enough air movement, microclimates in the canopy are even more conducive to mold and such
....and raise the temps into the 70's (F)
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PH donner
Active member
fact this fact that blah blah blah...
I have never needed a dehumidifier in any location.
If I hear you like that, you can't grow plants outside with those facts
When nature contradicts science, nature is always right Justus fom Liebig
Week 7 day 3 we are counting down
Only water through the dishes
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