Major Herm Issues, I need advice

[Badfishy1]

good luck and hopefully you find the issue... on a side note: imagine trying to be so ‘woke’ you get offended by somebody not accepting ladybois in there garden. Now imagine taking it to the point you seethe so hard you spend Christmas morning going on a rant about it. Bruh find your local lady (of boy, don’t want to set you off even more by being exclusive) of the night, and pay her a $20 for a nice Yuletide hug.

 

[St. Phatty]

If that's all you have to smoke, Herms ain't so bad.

As long as they have a lot of resin.

Their pollen is Toxic though.

 

[CaptinFunk]

Do you have air blowing directly on them?

That was my issue with my room. I think I've got it sorted now by increasing the size and number of my passive intakes.

No not really. I have HAF fans for air circulation but monster plants don’t get direct wind (other than the plants on the ends of tables near wall fans)

 

[CaptinFunk]

If that's all you have to smoke, Herms ain't so bad.

As long as they have a lot of resin.

Their pollen is Toxic though.

My customers don’t want weed full of seeds.
This is a major fucking problem.

 

[RockinRobot]

Check your timers if you're using the type that you press down the tabs for the on off times. Could have a light actually coming on for a short period.

 

[slownickel]

Day 13 in flower
1000W DE's
3 gal Smart Pots w/ Coco

I've been growing in this building for a little over a year. First few harvests had 0 herm issues. Fast forward to now, and I have strains that didn't used to herm, start herming (Full blown pollen sacks at the nodes where caylixs should be)

The plants look super healthy, with a strong healthy root system, no visible signs of deficiencies, root damage, etc...

I check security cameras daily for light leaks, and theres nothing. (other than the green 'Exit' sign which has been on since the beginning)

Day temps are around 77F and night temps are 71/72F. HOWEVER, when the lights kick on, the temp spikes to low 80's before HVAC can keep up and when the lights turn off, temps break into the high 60's before HVAC can start heating. but this this is nothing new and our HVAC has been acting this way since the beginning.

I'm growing the same cuts as a friend who has zero herm issues. Could it be over watering in Coco? My plants stay fairly wet, but the roots look great.

Strains giving me problems:
Birthday Cake
GMO
Motor Breath
Yuck Mouth

Any ideas?

Any stress can cause hermies.

Check your CO2 level at night. Do you know what it is at?

 

[moses wellfleet]

Your buddy is watering far more often. I’m no coco expert, but is it possible to try watering the same schedule as your buddy?

Maybe it’s possible there is some kind of salt build up issue between waterings.

I don’t grow in coco so just trying to give you ideas!!

 

[CaptinFunk]

Your buddy is watering far more often. I’m no coco expert, but is it possible to try watering the same schedule as your buddy?

Maybe it’s possible there is some kind of salt build up issue between waterings.

I don’t grow in coco so just trying to give you ideas!!

Unfortunately I cannot. I use a nutrient injector where each pump pulls from a different nutrient stock tank. The longer the system runs, the more accurate the feed is because the system automatically adjusts based on EC and pH. Long story short, the absolute minimum I can run each irrigation evennt is like 7min at 12gpm flow rate.

He has batch tanks so his nutrient solution is already good to go and pre-mixed.

Overall, his pots are consistently way drier than mine. I’ve check runoff on his pots and there is some heavy salt buildup that I don’t have (because I get runoff on my second and third watering)

Again, most of the strains are fine and totally beautiful. This run, I have 12 different strains, about 700 plants total. The birthday cake clearly has a stressor and has herms. Motor breath and GMO look perfectly healthy but still have herms.

I’m still trying to figure out wtf is wrong with birthday cake. I just can’t seem to make this strain happy.

 

[CaptinFunk]

Any stress can cause hermies.

Check your CO2 level at night. Do you know what it is at?

I will do that. I don’t know what CO2 levels are at night but I have that on a timer so I know it’s not dosing after 7pm.

 

[CaptinFunk]

Check your timers if you're using the type that you press down the tabs for the on off times. Could have a light actually coming on for a short period.

I’m using Gavita controller for my lights. I don’t think a light is coming on, I have security cameras on motion sensors so any light coming on would be detected by the cameras.

 

[St. Phatty]

My customers don’t want weed full of seeds.
This is a major fucking problem.

Yes. My buds are lightly pollinated this year, on purpose. The father was a super drought resistant Sativa-leaning male.

I inspect the buds before cutting them up but occasionally cut a seed which pisses me off a little.

I admit it is a sigh of relief when I get to a seed less batch, or bag of buds from a neighbor.

 

[Douglas.Curtis]

The cut I had of Canna-Tsu (yep, she's gone again but I still have loads of femmed pollen), likes to herm when the pH drops too low in the root zone for a long enough period.

When a medium dries out (water evaporates from the nutrient solution), the pH drops as the remaining nutrient becomes concentrated. Remember, nutrients are pH down (generally speaking). Since you're in coco, the issue is actually worse than with other media and is most likely the root cause. (pun intended)

Hope that helps

 

[shishkaboy]

Overall, his pots are consistently way drier than mine. I’ve check runoff on his pots and there is some heavy salt buildup that I don’t have (because I get runoff on my second and third watering)

Am I reading this correctly?


How dry do yours get?

 

[CaptinFunk]

Am I reading this correctly?


How dry do yours get?

Not very dry, moisture stays fairly consistent. Each plant gets about 3x 7.5min waterings. Pots have 4x 0.5 gph emitters.

So each plant gets about 0.75gal each per day. (3gal in coco)

 

[CaptinFunk]

The cut I had of Canna-Tsu (yep, she's gone again but I still have loads of femmed pollen), likes to herm when the pH drops too low in the root zone for a long enough period.

When a medium dries out (water evaporates from the nutrient solution), the pH drops as the remaining nutrient becomes concentrated. Remember, nutrients are pH down (generally speaking). Since you're in coco, the issue is actually worse than with other media and is most likely the root cause. (pun intended)

Hope that helps

My pots don’t dry out like that, and I do t get salt buildup. Right now I’m feeding at 2.0 EC and my runoffs are like 1.3 -1.5

pH is being fed at 5.9 -6.1 and runoffs are 5.7 - 6.0 depending on strain

 

[CimbaKat]

I have never seen this mentioned but I believe pouring cold water on the plants causes some stress and hermi tendencies.
I use a fish tank heater or two in the winter, in the water to balance out the ambiant temps and my water temps.
No peer review,straight up bro science. Your results may vary but every year on this forum for over a decade, when the temps drop, people start up with hermi issues.
Hope you work it out...

Cold water most definitely can fuck a plant up... overwatering with cold water probably even worse.. and if this guys coco is wet and now just saturated thats definitely a possibility. Roots are trapped in an icecube, more cold water saturating that coco is only going to keep it colder for longer and stress it harder. I had it happen my autos... rez was on cement floor which was warm all summer, once late fall hit, at night it would get cold as heck and stay that way... i didnt realize until i touched the water and it was frigid. New home, new setup, Now my water is dialed in at the same temperature as my room.. 77-80F.. no problems at all.