Cannabis Plague Help pls

Hello guys, i have 22 outdoor plants that just started to flower. Most of them are massive and healthy, but some of them (12 ft and very vigorous and healthy) started to change colour and to dry out from bottom to top and die in just 1 week ! the last one that had this simptoms died 1 month ago, and i tought it was a singular case, but now the largest one has the same simptoms. i really don't know what it is. Thay are in 30 gal holes in the ground with bio bizz all mix soil and are getting canna nutes. i water them twice a week with 30 liters of ph'ed water. anybody knows that this is ?




here are the healthy ones.

I don't grow outside but my guess is root rot. Is your drainage good under the soil you put in? Some outdoor grower will see this and know but I'm guessing. Good luck, I hope the rest of your crop does better.

had that happen on a outdoor DWC hydro plant but it healed itself in time, it was pretty bad too looked just like yours

Thanks guys, i didn't think about root rot because i never had it, and this is the 2'nd year i grow in the same spot; but that could really be the answer because the soil in wich the holes are dug is like cley and lately it rained a lot. if this other plant dies i will definitely check the roots. any other opinions are appreciated. thanks

a sudden wilting of an entire plant can speak of the roots being eaten by gophers, moles, etc. but it isn't accompanied by the change in color you had - I'm voting root rot as well - pythium wilt perhaps. smart pots would help prevent this next year if you use the same spot - nice plants by the way I hope the rest make it - try to give them as little water as you feel comfortable from here out.

Yes, I've lost big plants to root rot just like that.......I'm with these guy's.......root rot

If it's not root rot and is infact a disease..http://www.plantea.com/plant-aspirin.htm

Hello lads, i recently visited my spot and performed an autopsy on the last plant that died, and I think we were all wrong about the root rot. I pulled out the root mass and looked healthy, but when i cut in 2 the stem i found this fuckin yellow worm that was eating the insides of my plant ? anyone seen this ? here are some new pics.


Here are some pics of the plant that is currently dying (she's 3 meters tall it would break my heart to lose her). Being convinced it was root rot i gave her today cannazym, rhizotonic and guard'n'aid rot stop.


Here are some pics of ther other plants that are doing fine.

I remember a earlier in the season post about someone dealing with these worms that would bore into the stalks. They manually pushed them out using a stick if I remember right.

Good luck bud, thats a shitty situation. Do you see any entrance hole in the stalk?

Beetle Borers



Prevent: Beetle borers are primarily found in outdoor gardens. Cleanliness and good habits will keep these pests out of greenhouses and indoor growrooms.
Identify: The beetle borer is the larvae of a large variety of beetles and a particularly nasty pest. These larvae leave entry holes at the base of stalks where they continue chewing through the stems of your plant. A brown trail of death will follow the path of a beetle borer, these pests cause severe enough damage to water transportation systems of plants everything around the trail dies. If the base of branches or heaven forbid the main stem of the plant are infected, death can quickly follow for everything outwards of the trail.


Note the entry hole on the left of the picture and subsequent trail to the location of the larvae

Eradicate
Repression: Keeping indoor grows clean is the only countermeasure.
Predators: The borer is a large enough tunneling insect that no effective predator has been identified. Predatory nematodes can help control grubs in the soil but this is a largely preventative measure and not a treatment.
Manual Removal: The best and virtually only way of controlling beetle borers. If damage is sited, follow the trail and cut the borer out of your plant. Oftentimes damage is already done when a beetle borer is located. If the branch or affected area does not bounce back quickly or is obviously done for, remove it with a clean cut from a knife or scissors.
Spray: The beetle borer lives inside the hardy stalks of your plant making sprays nearly useless. Bacillus papillae is a beetle specific fungal powder and can have limited success. If the beetle is in the main stem of your plant and you cannot get to it without endangering the life of your plant, injecting a product called rotenone directly into the stalk with a hypodermic syringe will kill the grub.

http://www.bhg.com/gardening/pests/insects-diseases-weeds/stop-squash-vine-borers-in-your-garden/

little fucking fuckers! Doesn't look like ther 's much you can do once there in... but they are a really resilient plant I had to uproot 2 plants twice years ago because my spots got found,brought em in to flower and still got 7 oz from them after a strong piss feed to boost the nitrogen,ha strange but it worked.aaaannnyyway I was thinking as a last resort you could clean a sharp blade with alcohol slice done the stem in any areas you can see an entrance and remove the worms manually then wipe/ spray clean the larvae with salt water and wrap back up tightly with frost protection sheeting (waterproof yet breathable to prevent mold) and string..just an idea,it's what they do to us if we get a worm, kind of like plant surgery.then I would do the aspirin feed to boost its immune system

Thanks a lot man that was very helpful.. i'm wondering if it would be ok to inject BT in the stem.. ?

Stem borer. This is what I do:
1. Spray with Sevin every week during veg and mid flowering. Be sure to soak every interior stem and around the root crown, just one worm can kill a plant.
2. If the stem is already infected scrap the mold parts, spray with anti-fungicide, and Sevin or Imidaclorpid (worst), inject some into the stalk about 4" above and below. Wrap thigth wit electric tape, that will create and air thigh cover and the worm will try to scape and eat the poison. Keep spraying and remove the tape in 2 weeks. In some cases is best to remove the lateral stem and try to save the main one. Pray it works.

Hope it'll work, first thing tomorrow ima go get the right chemicals then its surgery time anyway it's gonna be though getting rid of them because i think the main stalk is damaged and it's gonna be a bitch getting inside there to clean it up. i'll give it a try. Thanks a lot for sharing your method