Have you used defoliation to control stretch?

Kassiopeija

Well-Known Member
cutting the day back to 10/14
you mean like 10 hours dark? yeah, I've did that under HPS on indica-dom strains - it did work... however, today I'm more of the mindset to rather make the night longer (13-14 hours) and compensate by increasing luminosity.
at the end of the day it's just a matter of the number of absorbed photons...
 

Hobbes

Well-Known Member
Super crop them that's what I do I'm in the same situation. Vegged to long due to longer flower time needed, it sucks but I make due
I've never super cropped but I understand the basics, I'll research it this morning.

Thanks

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Hobbes

Well-Known Member
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My Blue Dream is 28 1/4" from my light, Lemon Haze 27 1/2". Recomended height 29".

I've had tall shoots come within 24"of the light with no problem from light stress.

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Hobbes

Well-Known Member
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Day 10 of flower and I've done my final defoliation 11 days earlier than usual, thinking it will slow down the energy transfer from the leaves to the stems.

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I think that I'll skip my day 21 defoliate so I put my trellis on early.


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Hobbes

Well-Known Member
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"Come one come all, see the astounding Hobbes strip plants and wash buds in H2O2!"

It's day 16 of flower and most of the leaves have grown back. I won't be doing a day 21 defoliation, I've already got my trellis in and stretch is being controlled.

The Blue Dream is still only 27.5" from the light and Lemon Haze 25.5". A week or so of stretch left and I think I'm going to stay under 24". If so we just see how the tops do with all that light, if not I'll look into monster cropping.

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Still lots of room for air flow.

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A Sluracane clone, I'm keeping an eye on her for powdery mildew. Had to wash the mother in H2O2 to get rid of it.

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Satax

Member
Plop,

whats the point to defoliate so much?
Specially when the leaves comes back???
I think just because of doing that the grow take more time...:sleep:

have a nice one
Satax
 

Milovan1

Well-Known Member
On your next grow top the plants as needed and keep the light(s) as close as possible to the
plants so as not to burn the leaves. Put your hand under the light at the top of the canopy to measure the heat output of the light(s).
This method will keep your plants from lanking (stretching) out and will bush them out. Defoliation is not the answer to control stretch your
just gonna slow down the growth.
 

Hobbes

Well-Known Member
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Its all about getting light to buds deep in the canopy.

Here's a good pictorial explanation:

sorry having trouble linking

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Hobbes

Well-Known Member
Why Cannabis Defoliation?
Cannabis “defoliation” is the process of removing leaves from your cannabis plants. Some growers call this “lollipopping” when applied to the bottom of the plant. Many growers believe defoliation can be used as a tool to increase cannabis yields indoors, but there are also a lot of cannabis growers who say that plucking leaves off cannabis plants (defoliation) is not beneficial for your cannabis yields in any way. Today, I’m going to provide evidence that defoliation does indeed work and I believe the pictures I’m going to show you in this article will speak for themselves!

Defoliation means strategically removing leaves to “hack” the plant’s natural processes so you get bigger yields.

Cannabis defoliation in action

Over the years I’ve heard many naysayers swear defoliation can’t work:


There is some truth to what they’re saying. Defoliation isn’t for everyone in all setups. It should only be used in specific situations. If you do defoliation the wrong way it will hurt your plant and reduce your yields. As one example, defoliation doesn’t appear to be effective at significantly increasing yields for outdoor plants. But for indoor growers, cannabis defoliation done right results in larger yields.

Unfortunately, I’ve also seen growers try to defoliate their cannabis plants the wrong way, most especially by pulling leaves from plants that are slow-growing and/or sickly. Defoliation will not make up for other problems like
too-hot conditions, not enough light (or conversely too much light) or nutrient deficiencies. If you try to defoliate plants that are not in top condition, you’re asking for trouble because defoliation will only stress your sick plants further.

The truth is, when growers defoliate their plants the wrong way, they’ll end up with slow growth and reduced yields, and I believe that is where a lot of the criticism of defoliation is coming from.

So many growers say, Defoliation doesn't work!


But the fact that defoliation doesn’t work for all growers in all setups doesn’t mean that it doesn’t increase yields when done the right way!

Today I’d like to show you what successful cannabis defoliation looks like, and how to use it to increase your yields indoors. You’ll see examples and lots of picture-proof! If you still don’t believe properly-done defoliation works to increase yields after reading this article, I still encourage you to give it a try if you can afford to do so. You don’t need to do any defoliation on your plants… just don’t complain when the defoliators get better yields

Defoliation Example (under 250W grow light)

Growing wide and flat is the key to producing the best yields indoors under grow lights! I used the manifold technique on this plant.

Example of a White Rhino plant in the process of being LSTed and Manifolded

Just before switch to 12/12 – Before Defoliation


Example of a cannabis plant just before harvest - before being defoliated

Just before switch to 12/12 – After defoliation

I started by removing the biggest fan leaves, especially any that were hand-sized and bigger. Some growers like to defoliate the bottom 20% of the plant at this stage. Make sure not to disturb bud sites, and always leave enough leaf cover that you still can’t really see through the plant very well. The plant needs a table of leaves to power the growth and stretch the way we want in the next few weeks! I think it’s common to go overboard at this stage, so I recommend taking a few less leaves than you think. It’s easy to get lost in the zone and realize you’ve completely plucked your plant bald! Just remember, you can’t put leaves back but you can always take more later


This cannabis plant was just defoliated, and will be put into flowering today

3 weeks after switch to 12/12 – Before Second Defoliation

It has started growing buds, and completely re-leafed itself in that time!


Example of a cannabis plant 3 weeks into the flowering stage - before defoliation

3 weeks after switch to 12/12 – After Second Defoliation

At this point I only took the biggest fan leaves, making sure not to disturb the growing buds. Again, you still shouldn’t be able to see through the plant very well after you’re done, your plants need leaves to fatten those buds! Nothing else was done after this point, and buds were allowed to fatten unhindered. I just gave them nutrients and water from here until harvest!


Example of a marijuana plant 3 weeks into the flowering stage - after defoliation

39 days into flowering (2.5 weeks later)


This is what that same marijuana plant looks like 39 days into the flowering stage

72 days into flowering – Just before harvest


Example of a marijuana plant that has been defoliated - just before harvest time

Drying


Buds from defoliated White Rhino cannabis plant hanging as they dry

How can this be? Why would the plant make leaves if it doesn’t need them?
 

budman111

Well-Known Member
Plop,

whats the point to defoliate so much?
Specially when the leaves comes back???
I think just because of doing that the grow take more time...:sleep:

have a nice one
Satax
Noobs get mixed up with the necessity of light indoor pruning and the myth of defoliating and butchering plants
 

Hobbes

Well-Known Member
Outdoors, cannabis plants need extra leaves to store nutrients and create an extra wall of defense in case the plant gets attacked by pests or otherwise loses all its leaves. But indoors there should be no pests, and you are there to give your plants the exact nutrients it wants at the exact right time. This makes holding onto leaves a lot less useful for the plant, especially some plants which get extremely bushy without defoliation.

“In the wild a fan leaf is a pretty necessary thing. Not only is it a solar panel but it is also a holding center for the plants nutrients. Indoor grows, where you control a constant supply of food to your plants, makes the fan leaf less necessary. Yes, they are a solar panel but they are also a huge blocker of light to your offshoots which need daily development to achieve greatness.”
– AK GreenLover
Cannabis isn’t the only plant that benefits from defoliation

To those naysayers who claim defoliation can NEVER work, I think it’s important to point out that cannabis isn’t the only plant that rewards growers with bigger yields and higher quality from defoliation. Some commercial crops, such as cotton, need to be defoliated during their grow to produce the best yields and quality of cotton. In fact, even after 40 years of intense study on cotton defoliation, there is still controversy and ongoing research by commercial crop producers to further pinpoint the exact time and way to defoliate cotton plants in the field to produce the best results. In a study with subterranean clovers, defoliation in early to mid flowering dramatically increased the number and size of flowers, but continuing defoliation until later in the flowering stage dramatically reduced flower yields. Cowpeas and some palms are other plants that produce better yields in response to thoughtful defoliation, but again yields are lower when too many leaves are taken, or if they’re taken at the wrong time.

Some palms produce more flowers in response to being defoliated

Some palms produce more flowers in response to defoliation
I think these examples demonstrate the main thing you need to remember: Defoliation is definitely not some magical way to increase cannabis yields; it’s a technique like any other and it can be done in both good and bad ways.
Let’s learn how to do defoliation the right way for cannabis plants!


Leaves laying on the floor after the cannabis plant was defoliated

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Note: Cannabis defoliation works best when it’s combined with other cannabis plant training methods such as topping or LST.
 
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Tetrahedral

Well-Known Member
Outdoors, cannabis plants need extra leaves to store nutrients and create an extra wall of defense in case the plant gets attacked by pests or otherwise loses all its leaves. But indoors there should be no pests, and you are there to give your plants the exact nutrients it wants at the exact right time. This makes holding onto leaves a lot less useful for the plant, especially some plants which get extremely bushy without defoliation.


Cannabis isn’t the only plant that benefits from defoliation

To those naysayers who claim defoliation can NEVER work, I think it’s important to point out that cannabis isn’t the only plant that rewards growers with bigger yields and higher quality from defoliation. Some commercial crops, such as cotton, need to be defoliated during their grow to produce the best yields and quality of cotton. In fact, even after 40 years of intense study on cotton defoliation, there is still controversy and ongoing research by commercial crop producers to further pinpoint the exact time and way to defoliate cotton plants in the field to produce the best results. In a study with subterranean clovers, defoliation in early to mid flowering dramatically increased the number and size of flowers, but continuing defoliation until later in the flowering stage dramatically reduced flower yields. Cowpeas and some palms are other plants that produce better yields in response to thoughtful defoliation, but again yields are lower when too many leaves are taken, or if they’re taken at the wrong time.

Some palms produce more flowers in response to being defoliated

Some palms produce more flowers in response to defoliation

I think these examples demonstrate the main thing you need to remember: Defoliation is definitely not some magical way to increase cannabis yields; it’s a technique like any other and it can be done in both good and bad ways.

Let’s learn how to do defoliation the right way for cannabis plants!


Leaves laying on the floor after the cannabis plant was defoliated

Note: Cannabis defoliation works best when it’s combined with other cannabis
plant training methods such as topping or LST.
Hey I'm not sure your qualified enough to make such references and you sure as hell don't understand palm trees.

When you understand defoliating as a scientist and not weed hack you would mention palms transitory glucose reserves proping up the flowering period after an initial decrease from defoliating.

Never read such rubbish about defoliating cannabis but if you want an answer you need to do some high level learning not hang about these sites posting low level answers.

Sad you can't work it out, there is an answer but how many of you are qualified to give it here.
 

bk78

Well-Known Member
Hey I'm not sure YOURE qualified enough to make such references and you sure as hell don't understand palm trees.

When you understand defoliating as a scientist and not weed hack you would mention palms transitory glucose reserves proping up the flowering period after an initial decrease from defoliating.

Never read such rubbish about defoliating cannabis but if you want an answer you need to do some high level learning not hang about these sites posting low level answers.

Sad you can't work it out, there is an answer but how many of you are qualified to give it here.
You can’t even decipher which you’re or your to use. You should really fucking stop trying to tell people how to grow their shit and focus more on YOUR little 8” flowering plants you got going on.
 

Boatguy

Well-Known Member
You can’t even decipher which you’re or your to use. You should really fucking stop trying to tell people how to grow their shit and focus more on YOUR little 8” flowering plants you got going on.
Thats not nice.... Leave the poor things t5 grow out of this :peace:
 
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