What's new

Top of colas burned or other issue???

LEDNewbie

Active member
Veteran
SO got back into town this evening. First thing I did was check the grow. To my delight drip system worked without a hitch..... But I did notice something weird going on since I was gone. It seems as though the plants from about the mid point of table to far end(closest to back wall) have developed what looks like burned tops???? Only thing I can think of is nute burn??? And the only reason I can think of why only the middle to back of my scrog has this burning going on is because those plants receive more light from the reflection of the Orca Grow Film on the back wall. If you guys could please have a look at the pics and let me know if you think my theory is correct or not? Dumb me I decided to change my feed from 3 times during lights on to 6 times during lights on and never really got to test it before I left. Well I don't think I was getting any run off with my drip times and think thats the cause of the salt build up?

I checked run off this evening and it was showing 2.0-2.2 EC and PH 6.2. I then ran 30 gallons of 0.6-0.8 EC Nutes with 5.7 PH through my drip system and run off is now between 1.2-1.4 and PH 6.1. I adjusted my pump timer so that at each drip the pump will run for a longer period. I should get run off at each drip now which should fix the salt build up issues???

Other than these "burned" tops I did notice some growth in the 3 days I was gone so that was nice to see.

Day 34 pics



 

LEDNewbie

Active member
Veteran
Unburned top


Burned tops






I'm feeding plants H&G base with 60ml of Epsom salt added to 55 gallons, drip clean. Total ec 0.8 ph 5.6-5.8. That's feed everyday. Once a week they get aptus, once a week sea green and once a week og biowar tea.

They are also getting a foliar feed once a week with the tea, spray'n grow(zinc, iron supplement) and once a week with canna boost.

Thanks guys!!!!
 

LEDNewbie

Active member
Veteran
Also for reference I had broad mite issues on my last grow. Been doing heat treatments every 3 weeks and plants have been looking great and growing fast!!! On day 29 I did another heat treatment and plants looked great before and after. So I don't think its bm damage???
 

LEDNewbie

Active member
Veteran
SO someone in my thread suggested that is BM damage so I decided to investigate!

I was just in there, feed the plants tea. After that cut 2 buds off and took them into the house to look under the USB Microscope. Tore them apart, searched top, bottom, inside. Looked for 15-20 min! For the life of me I can't find a BM!!! WTF do you think is going on? I put back my drip system to 3 drips per lights on period and added a minute or two to each drip to make sure I'm getting good run off. If anyone has any other suggestions please fire away!! Thanks.... On a positive note buds were nice and sticky and man did they smell GOOD!!!:laughing: citrusy/menthol aroma. Ohh soo good!!



 

Hammerhead

Disabled Farmer
ICMag Donor
Veteran
Might be your foliar spray. When the plants start to flower I dont foliar feed anymore. Moisture in the buds is bad. Stop the foliar see if it stops. The buds that are toasted wont recover. you will need to look at new growth.
 

siftedunity

cant re Member
Veteran
tbh it looks like its pistils rather that the actual bud. is there any chance there could be any pollination? did you see any mold or anything? notsure if these are stupid questions or not to you. ive had some pistils turning red early and I think its because my temps have been too high of late.
 

siftedunity

cant re Member
Veteran
yeah plus what hammerhead said ^^ theres no need to foliar feed in flower and I never would with the lights on especially
 

LEDNewbie

Active member
Veteran
Thanks guys. Will stop foliar spraying and watch lower buds to see what happens. Will also continue to check run off and make sure that stays in check.

My canopy temps lights on is around 81, humidity is between 55-65% depending on when a/c is running and co2 is 1100ppm
 
Top