When Gress took the white tips in for testing, she was surprised by the results.
Some speculate that the buds are being bleached by the intensity of the light source. Many of the buds at Vashon Velvet, however, ended up producing white tips despite not being closest to the LEDs. Furthermore, LED lights are energy-efficient, so they produce next to no heat, which allows the LED fixtures to be raised and lowered without fear of burning the buds.
“[He] came to take pictures of our grow for NW Leaf and photographed a white tip,” Gress explained. “So, I asked him, do they look damaged? ‘Oh my god,’ he replied, ‘I’ve never seen anything like it, this is trichomes on top of trichomes!’”
“We’ve had white tips analyzed separately from the green part of the same bud and found they have higher [concentrations of] THC and much higher terpenes than the rest of the plant,” she noted.
(Trevor Hennings for Leafly)
The constant improvement in cannabis grow technology, nutrients, genetics, and tactics has led to surprising new developments for the plant. Have you grown cannabis with white tips before, or have you consumed white-tipped bud? Share your stories in the comments!
It’s unlikely that the tips are burned because the rest of the plant would show signs of being burnt as well. Leaves lower down would lose their color, shrivel up, and die, and the bud itself would just die instead of appearing white.
(Trevor Hennings for Leafly)
The second visitor, Dr. Ethan Russo, is a renowned neurologist and psychopharmacology researcher who is heavily involved in the exploration of cannabis and its effects/benefits. When Dr. Russo visited the farm, he found both the plants and their white tips to be exceptionally healthy.
Learn about the development of white tips on cannabis buds, including how they're formed and how growers like Vashon Velvet use LEDs to develop them.
For those who haven’t experienced WPM, imagine circular patches of a living, breathing, fuzzy, flour-looking substance showing up on your plant’s leaves without any warning. From there, the mildew can easily spread to other leaves and buds, rendering the buds unusable.
Advanced growers can defoliate some of the fan leaves that are completely shaded from the grow light to make fewer choice landing spots for White Powdery Mildew. Also, defoliation frees up energy for the plant to use when done correctly and increases yields! See our article on defoliation for more info.
Hydrogen Peroxide (1 teaspoon of 35% H202 per gallon of water)
Handheld Mister/Sprayer – A mister is awesome for applying treatment. Also, it’s the best way to foliar feed your plants!
If you have WPM spores in your grow area and the air in grow area is never exchanged for fresh air, the spores get multiple chances to land on your plants and reproduce. This happens most often in conditions where cannabis is being grown in a closed, unventilated space – such as a closet – and precautions aren’t taken to exchange old stale air for new fresh air.
White Powdery Mildew has such an easy time spreading that even careful growers who take proper precautions can still experience it.
As I mentioned earlier, I recently had a battle with White Powdery Mildew. Rather, it might have been a battle if I noticed it later or waited to fix the problem. That’s the one good thing about WPM: in most cases when WPM is caught early, you can remove all traces of the mildew without harming your plants.
Neem Oil (4 teaspoons per gallon of water)
Treat the infected plant with one of the options below to kill spores prevent future growth – Mix up your treatment of choice in a clean sprayer/mister. We recommend Lost Coast Plant Therapy (1oz/2btsp per gallon of water) or GrowSafe (2oz/4tbsp per gallon of water) as a safe second option . Make sure to consult the instructions on your treatment of choice to find the recommended dosage. Wait until just before your lights for off for the day and mist your (newly cleaned) plants. Get all the leaves even if you don’t see WPM on them!
White Powdery Mildew (aka White Powdery Mold) can be the cause of white spots on your leaves that looks like patches of flour. Learn how to get rid of it!