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A few of my clones and moms have some leaf curling. It seems to be on the upper leaves and new growth the most. I don't see much of it on the flowering plants. Here is a picture. I've read how it could be a larger number of things, most not very serious. Do you know what it might be?

I'm thinking of changing my grow room around and flowering some Super Lemon Haze in coconut in my greenhouse. Is there a downside to flowering outdoors in coconut? I'm using the Canna Coco medium with the Coco nutes and 4 gallon coconut pots. Thx.

Has anyone had a positive (or negative) experience with the SuperSoil from Home Depot? It's really inexpensive (like $5 a bag) and I have one grower who is using it with some success (3 weeks into flowering). So, I'm thinking about getting some, but I'm wondering if it has trichoderma in it or...

This morning, I walked my trash to the recycle bin in the alley and lo and behold, there was a pot plant. You can bet I looked it up and down for 5 minutes, trying to rule out every other vegetable and herb known to man. Then I noticed it was a couple weeks into flowering and looked healthy. In...

A patient recently donated some odd-looking cannabis. I was skeptical about it, but I knew the guy pretty well, so I trusted it was ok. However, after sampling it, I got a lung infection. Tonight, I contacted the patient to let him know and ask him why it was funky. He said it was infected with...

Hi, I searched the archives and can't find anything on how to collect/store male cannabis pollen. If anyone has advice or a link, it will be much appreciated. I have two White Widow males and I'm going to milk them, then toss 'em. In fact, if there are any patients in the San Diego area who...

Hey guys, I got some supposedly feminized White Widow seeds from a patient grower. However, two of them are males and one is a hermaphrodite. Here is a picture of the hermie. My question is about pollen. Do you think this plant is producing pollen that could pollinate the other female...

A couple of my plants have thrips. What would happen if I threw some chrysanthemum flowers on top of the soil? Would they eat them and die? Or should I just get some spray that has Pyrethroids? thx

I'm growing cannabis outdoors at the beach and we have a lot of humidity. Before I found a product that would cure and prevent it, some started growing on my plants. Now, I have a mixture of mostly dead powdery mildew and trichomes on the trim leaves. I'm having someone wipe all the dead...

From time to time, a patient brings us some weed with seeds in it. We obviously have several options regarding deseeding or not deseeding, so what would you do?

One of my outdoors growers in Carlsbad has some plants with this stuff on them. Is this bud rot? Any idea how this can be cured or prevented? Since it has been continually cloudy and humid in C'bad, I'm thinking its the culprit.

A few of my indoor plants are showing signs of this curling. Most of them are in coco, but a few are in soil. Does anyone know what this indicates? The temp and humidity are at correct levels. They are in the veg stage.

It's city water with added calcium, magnesium and flowering nutrients (Terra Flores). She generally doesn't drink it until it has been sitting out for 12 hours. So far, I see no ill effects.

Please correct me if I'm wrong, but I think I should be able to veg plants indoors for 30 days, then take them outside to flower them for 60 days - virtually any time of year. Am I mistaken? Is it the decreasing light or the small amount of light that triggers flowering? I think it's the small...

I was going to get 1000w high pressure sodium lamps, but I've been having success with my 125w cfl, so I'm leaning that way now. Will I need a ballast with CFLs? I'm planning to run a total of five or six 105-125w lamps. Thx.

For the past month, one of my potted plants in soil has been "acquiring" yellow mushrooms. In fact, I imagine a few spores were released either from the plant or the air and they created a few mushrooms. Then I've been pulling them out and probably spreading them a tiny bit, so I haven't been...

Could any type of poison be given to a cannabis plant that would end up not killing the plant, BUT killing the smoker who smokes its buds? I'm curious for my own interest and safety and I'm NOT interested in doing this. Just fyi. I'm not a killa. Thanks.

Hey RIU, I've heard that a few cannabis strains don't get amber hairs, that they stay white when they're ripe. I'm wondering which ones stay white. I have a Blue Dream Haze clone that's about 6' tall. I started growing it as a tiny clone on May 4, 2010, so it has been growing for 4 months on my...

Has anyone used this stuff for powdery mildew? The guy at my local grow store said it should work, but he wasn't 100% certain. He says it's a new product they've only had for a month or two, but by means of a Google search, it seems pretty popular or well known. If it does work, it would be...