- So I'm working on my first plant, Treebeard, just to get a feel for growing and if this is something I want to explore more. And, I've ran into two issues:
1.) Powdery Mildew
2.) Root Rot(or so I'm assuming)
Luckily, my new roommate runs a grow and knew how to help me with the mildew, ventilation and spraying "baking soda water" on the infected leafs to raise the pH levels on the surface of the leafs.
My current problem is with the root rot. I neglected to trim the roots before transferring Treebeard into a new, smaller, pot that has holes for the water to flow thru. I have since added worms to help with nutrients, and with the assumption that they will eat what ever is left of the rotten roots. In the three days since, color has partially returned.
Any suggestions/thoughts?
My first plant! I could use some advice!
- Thread starter MattTuck
- Start date
topfuel29
Well-Known Member
You have to remember cannabis is a semi-arid plant. It doesn't need much water. To help with drainage put a layer of perlite 1"-2" deep at the bottom of your planter. Ever day pick you planter up to see how heavy it is. If its light give her a little water if she's heavy don't water.
intenseneal
Well-Known Member
Let the plant tell you when it needs water. If it is thirsty the leaves will start to droop, water until you have run off out of the bottom of the container. You should never move a plant into a smaller container. Put it in a 3-5 gallon pot and call it good.
delvite
Well-Known Member
Powdery Mildew
Mildew spores can be brought into the grow room through air ventilation into your grow room, your cloths, pets and be carried by animals outdoors. and land on the plant infecting other parts of the plant, buds, stems, stalks and leaves, also spores can land on indoor grow room walls, tubes, growing equipment, hoods, ballasts, cords and etc. Spores can remain dormant until environment factors trigger it, like high humidity and cool temperatures, poor air circulation. Powdery mildew in vegetative growth is much easier to rid than in the later stages of flowering. Night time temperatures and moisture triggers spores to be released. The mildew eventually covers and coats the plant thus reducing the process of photosynthesis. If left untreated powdery mildew will infect all plants in your garden and coat your plants in flour like substance and cause leaves to suffocate Yellow and die off. If your plants are in flowering, depending how far into flowering, your buds will eventually become infected and will not be able to be used. Buds will have a stale moist smell and will be coated with a white powdery substance that cant be removed no matter what you do. Very early detection in flowering plants that have powdery mildew is extremely important, the longer you wait in flowering the more impossible it gets to eradicate this, due to this, bud size gets bigger in flowering and having high humidity temperatures over 65% can trigger active spores to start, not only powdery mildew, but triggers other problems from it, like bud rot. Not only will you have lower yield, but you wont have any buds, due to the fact mold has crippled your harvest.
Strains vary in susceptibility to molds, just like other pathogens and nutrient requirements and care.
Prevent and Control
Symptoms of your plants having powdery mildew include: white blotches of furry stuff and white spots or splotches that you can wipe off, having humidity that is over 65%, also starts on darker areas of the plant and spreads to the top. Darker areas on your plant that do not get a lot of light will start to show this first, then when spores become active it spreads to everything. The longer you let it go the harder it will be to eradicate, late flowering plants that have this are extremely hard to get rid of, due to bud density thicker in late flowering plants, because of this the mildew attacks the buds which you cant cure mildew once it affects the buds.(also known as Bud Rot)Plants that are stressed from environment factors, or fighting pests will be taken over more by this mold, due to the fact its already fighting problems. If you see your stressed plants getting it first, try to isolate the plant and bring down humidity, better air ventilation and or negative air pressure grow room. If you have mildew with your fans running, you will need to take them down and clean them as the fans can spread spores around the room. You will need to wash down everything in your indoor grow room, spores land on everything, so everything needs to be washed with mild hot water and bleach solution. Removing infected leaves from the grow room is critical, carefully removing them and trying to not knock spores into the air is a challenge. Applying a bag over infected leaves and tying it shut then removing it helps out with not knocking up spores in the air. Making sure you use h202 on stems that have open wounds from leaves that was removed. DO NOT water when lights are going to be going out, doing this keeps water on the plants soil and causes higher humidity levels, this goes for foliar feeding. Water plants when lights first come on or there is at least 5 hours left of lights on. You want to reduce the amount of humidity as possible if your levels of RH are high, you want to keep your humidity levels around 40 to 50%, and anything over 60% is going to trigger problems. Also keeping plants spaced apart allowing maximum air flow in between plants will help minimize plant to plant infection. Using a dehumidifier can greatly reduce humidity issues. Using a meter that tells your grow room conditions like temperature, RH and time can help combat your problems, by keeping track before and after you water can tell you how much if any your humidity can rise after changes made to the grow room. Sulphur Burner is another way to prevent and kill powdery mildew by vaporizing spores in the air. (Do not apply sulfur when air temperature is near or over 90°F) Controlling your mildew outdoors can be somewhat of a challenge, you cant control outdoor temperatures, or environmental factors, Using Vapor Gard,Wilt Pruf sprayed over the leaves can prevent infections.
You will need to treat your plants with various organic and chemical controls. This list will work for indoor and outdoor growers in killing and preventing Powdery Mildew. Outdoor growers can use Organics List below to help prevent Powdery Mildew of starting, even after it has started using anything below will help kill it off. (Note: When using chemical and or organic control methods, do not spray the buds, and for health and safety reasons, stay away from spraying around the buds if all possible.)
AQ10
Serenade
Plant Shield
Garden Disease Control
Fungicide containing Lime, Sulphur
JMS Stylet Oil
Saf-T-Side Spray Oil
Sunspray Ultra-Fine Spray Oil
Neem Oil
Neem 2
Kaligreen
Safer Garden Fungicide
Concern Copper Soap Fungicide
Guardian Angel
Serenade Garden Disease Control OMRI
Safer 3-in1 Garden Spray OMRI
Sulfur Vaporizer
Organocide
SM-90
Malatox
Garden Sulphur
Sulphur Burner
Sodium Bicarbonate
Chi
Mother Nature's Karanja Oil
Concern Copper Soap Fungicide
Mildew spores can be brought into the grow room through air ventilation into your grow room, your cloths, pets and be carried by animals outdoors. and land on the plant infecting other parts of the plant, buds, stems, stalks and leaves, also spores can land on indoor grow room walls, tubes, growing equipment, hoods, ballasts, cords and etc. Spores can remain dormant until environment factors trigger it, like high humidity and cool temperatures, poor air circulation. Powdery mildew in vegetative growth is much easier to rid than in the later stages of flowering. Night time temperatures and moisture triggers spores to be released. The mildew eventually covers and coats the plant thus reducing the process of photosynthesis. If left untreated powdery mildew will infect all plants in your garden and coat your plants in flour like substance and cause leaves to suffocate Yellow and die off. If your plants are in flowering, depending how far into flowering, your buds will eventually become infected and will not be able to be used. Buds will have a stale moist smell and will be coated with a white powdery substance that cant be removed no matter what you do. Very early detection in flowering plants that have powdery mildew is extremely important, the longer you wait in flowering the more impossible it gets to eradicate this, due to this, bud size gets bigger in flowering and having high humidity temperatures over 65% can trigger active spores to start, not only powdery mildew, but triggers other problems from it, like bud rot. Not only will you have lower yield, but you wont have any buds, due to the fact mold has crippled your harvest.
Strains vary in susceptibility to molds, just like other pathogens and nutrient requirements and care.
Prevent and Control
Symptoms of your plants having powdery mildew include: white blotches of furry stuff and white spots or splotches that you can wipe off, having humidity that is over 65%, also starts on darker areas of the plant and spreads to the top. Darker areas on your plant that do not get a lot of light will start to show this first, then when spores become active it spreads to everything. The longer you let it go the harder it will be to eradicate, late flowering plants that have this are extremely hard to get rid of, due to bud density thicker in late flowering plants, because of this the mildew attacks the buds which you cant cure mildew once it affects the buds.(also known as Bud Rot)Plants that are stressed from environment factors, or fighting pests will be taken over more by this mold, due to the fact its already fighting problems. If you see your stressed plants getting it first, try to isolate the plant and bring down humidity, better air ventilation and or negative air pressure grow room. If you have mildew with your fans running, you will need to take them down and clean them as the fans can spread spores around the room. You will need to wash down everything in your indoor grow room, spores land on everything, so everything needs to be washed with mild hot water and bleach solution. Removing infected leaves from the grow room is critical, carefully removing them and trying to not knock spores into the air is a challenge. Applying a bag over infected leaves and tying it shut then removing it helps out with not knocking up spores in the air. Making sure you use h202 on stems that have open wounds from leaves that was removed. DO NOT water when lights are going to be going out, doing this keeps water on the plants soil and causes higher humidity levels, this goes for foliar feeding. Water plants when lights first come on or there is at least 5 hours left of lights on. You want to reduce the amount of humidity as possible if your levels of RH are high, you want to keep your humidity levels around 40 to 50%, and anything over 60% is going to trigger problems. Also keeping plants spaced apart allowing maximum air flow in between plants will help minimize plant to plant infection. Using a dehumidifier can greatly reduce humidity issues. Using a meter that tells your grow room conditions like temperature, RH and time can help combat your problems, by keeping track before and after you water can tell you how much if any your humidity can rise after changes made to the grow room. Sulphur Burner is another way to prevent and kill powdery mildew by vaporizing spores in the air. (Do not apply sulfur when air temperature is near or over 90°F) Controlling your mildew outdoors can be somewhat of a challenge, you cant control outdoor temperatures, or environmental factors, Using Vapor Gard,Wilt Pruf sprayed over the leaves can prevent infections.
You will need to treat your plants with various organic and chemical controls. This list will work for indoor and outdoor growers in killing and preventing Powdery Mildew. Outdoor growers can use Organics List below to help prevent Powdery Mildew of starting, even after it has started using anything below will help kill it off. (Note: When using chemical and or organic control methods, do not spray the buds, and for health and safety reasons, stay away from spraying around the buds if all possible.)
AQ10
Serenade
Plant Shield
Garden Disease Control
Fungicide containing Lime, Sulphur
JMS Stylet Oil
Saf-T-Side Spray Oil
Sunspray Ultra-Fine Spray Oil
Neem Oil
Neem 2
Kaligreen
Safer Garden Fungicide
Concern Copper Soap Fungicide
Guardian Angel
Serenade Garden Disease Control OMRI
Safer 3-in1 Garden Spray OMRI
Sulfur Vaporizer
Organocide
SM-90
Malatox
Garden Sulphur
Sulphur Burner
Sodium Bicarbonate
Chi
Mother Nature's Karanja Oil
Concern Copper Soap Fungicide
delvite
Well-Known Member
Root Rot
What causes root rot? Low Oxygen levels. (DO) Desolved Oxigen. Temp's are the main reason for root rot, Low temps will lower the DO levels and high temps will cause low DO levels. Keeping temps between 65 to 72 will allow MAX DO levels or max o2 for roots.
Over watering also causes root rot, Root Rot infects parts of the roots, which then spread infecting the whole roots causing death, Root Rot can be caused by to high of temps in hydro as well as over watering. Not enough drainage in your soil can cause Root Rot, even signs of it looking over watered, because the soil holds moisture to long for the roots to dry out. So these 3 things are all connected together. The main one that causes everything is over watering. Once you find out you have root rot, depending on how bad the problem is, you can add H202( Hydrogen Peroxide) with your water or hydro setup to kill the bacteria caused from root rot. If the plant is severely taken over by it, there are only a few things you can do, cut off the roots affected by it depending on if its hair roots or tap roots, use H202 mixed with water in a different bucket and use it for a dip to help kill off bacteria before putting it back in the system, also note the system needs to be cleaned out if you have root rot.... using products like sm90 will kill off the root rot, using h202 in your system does more harm than good, it kills off the bad bacteria and good thus creating a worse off problem after the h202 has been overran, h202 if used in a hydro/aero system must be replaced everyday due to it disapating from the air. After it disaptes the plants defensive system has been killed off by the h202 causing the root rot that was not killed by the h202 left and thus overruns the plants root system. So again h202 should never be used in the hydro system, be kept in the system, although it is safe to use to rid of algae growth in rockwool and other mediums, but never be used in with the root zones regularly. Sm90 is a good product you can use to kill off root rot. Hydroguard helps protect and there are many other products that work as well, hydroguard is one of the more popular ones that work.
To prevent Root Rot, adding product's like Thrive Alive B-1, See Weed, Super thrive will help protect your plant's from root rot and will help cure root problems.
What causes root rot? Low Oxygen levels. (DO) Desolved Oxigen. Temp's are the main reason for root rot, Low temps will lower the DO levels and high temps will cause low DO levels. Keeping temps between 65 to 72 will allow MAX DO levels or max o2 for roots.
Over watering also causes root rot, Root Rot infects parts of the roots, which then spread infecting the whole roots causing death, Root Rot can be caused by to high of temps in hydro as well as over watering. Not enough drainage in your soil can cause Root Rot, even signs of it looking over watered, because the soil holds moisture to long for the roots to dry out. So these 3 things are all connected together. The main one that causes everything is over watering. Once you find out you have root rot, depending on how bad the problem is, you can add H202( Hydrogen Peroxide) with your water or hydro setup to kill the bacteria caused from root rot. If the plant is severely taken over by it, there are only a few things you can do, cut off the roots affected by it depending on if its hair roots or tap roots, use H202 mixed with water in a different bucket and use it for a dip to help kill off bacteria before putting it back in the system, also note the system needs to be cleaned out if you have root rot.... using products like sm90 will kill off the root rot, using h202 in your system does more harm than good, it kills off the bad bacteria and good thus creating a worse off problem after the h202 has been overran, h202 if used in a hydro/aero system must be replaced everyday due to it disapating from the air. After it disaptes the plants defensive system has been killed off by the h202 causing the root rot that was not killed by the h202 left and thus overruns the plants root system. So again h202 should never be used in the hydro system, be kept in the system, although it is safe to use to rid of algae growth in rockwool and other mediums, but never be used in with the root zones regularly. Sm90 is a good product you can use to kill off root rot. Hydroguard helps protect and there are many other products that work as well, hydroguard is one of the more popular ones that work.
To prevent Root Rot, adding product's like Thrive Alive B-1, See Weed, Super thrive will help protect your plant's from root rot and will help cure root problems.