Pests and Diseases
HELP! Whats wrong with my Plant?
To assist the cannabis community in providing you with an accurate diagnosis, help and advice please answer as many of the the questions below as possible including a description of the problem/s and how long the cannabis plant has been suffering along with any good clear photos when available.
Indoor/Outdoor:
Growing Medium:
Growing Style:
Watering/Feeding Frequency:
Nutrient Strength (PPM/EC):
PH Levels:
Temperature/Humidity Levels:
Air Flow/Fans etc.:
Lighting Type (CFL/HPS/MH etc.):
Total Wattage:
Growth Stage:
Plants Age:
Cannabis Strain:
540 topics in this forum
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- 8 replies
- 1.2k views
I presume that most people will disagree with me here but stiff. I soaked my seeds overnight in distilled water and when they started to crack, I put them into 1" growool cubes as thousands of growers do. When they got to around 2" tall I transferred them to the grow room. I planted them in expanded clay and had the watering system on for 15 mins and off for 2 hours. Result, half dead seedlings. After posting some pics on here, I was told it looked like they could have root rot. I thought "rot", couldnt be. I was using Phytoff and Oxy Plus. Well, lets cut it short. They were right. Those stinking, useless, seed killing rockwell cubes were at fault. I was told th…
Last reply by rudsy, -
- 1 reply
- 968 views
i have some dried buds that were mouldy. there's enough that i don't want to throw it away. does anyone have any ideas? should i just bin them?
Last reply by Luke Skywalker, -
i got this seedling about 2 weeks old out in the bush. its got 3 sets of leaves, neway one of the rounded leaves (the first ones) has a big chunk taken out of it. im just wondering what kinda animals/insects are in the bush (north brisbane) and is there much chance of them damaging/killing ur plants. anyone here lost crops to animals or insects outdoors? someone told me that insects are nutralised outdoors by other insects and small animals, thats why ppl have big problems indoors. (probably very wrong though)
Last reply by wade ounce, -
- 8 replies
- 699 views
hello again, i've got 3 lovely c99,s about 5 weeks into flower. yesterday i noticed that 1 of my babies had had one of it's heads bitten off. i couldn't work it out. it was caged with good fencing and i hadn't seen a possum in the last 2 years. i water my plants from a 44 gallon drm.i put the lid back on the drum after each water. last water i must not have put the lid back on properly . upon checking water level about an hour ago, i found mr possum floating in the half full drum of water. i imagine that through the night mr possum must have came down for another nibble, got stoned, got a case of the dry horrors,went for a little drink and fell i…
Last reply by skankmaster, -
White spots, possible mould
by Guest Giovani- 0 replies
- 566 views
Hey guys, i have 8 little babies in water right now, and i'm noticing white spots/slight fuzz or crystal. I think this is mold but i am unsure how to combat it. I am going to bleach the walls, but i cant do the floors, stupid landlord put carpets in and i cant remove it. I'm gonna spray them with fungicide. 1. Is this the best and or only course of action? 2. Is there any alternative solution to this problem. I'll see if i can get a digi and post pictures of the problem. All 8 are affected, the substance brushes off with light moisture and slight pressure from finger. However it seems to either re grow or re form in around 10-25 min
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- 13 replies
- 10.6k views
I had spidermites on my mothers so sprayed them with pyrethrum every 2nd day for a week. But they are showing bad case of burn, and yellowing leaves. I don't think its burn from the lights, as I sprayed them with lights out and sprayed with water after. I wondered if the spray went into the soil and the plants got poisoned this way? I will contionue to use plain water and hope they improve. What else can I do? Sorry no pics, I don't have my digi cam at the moment.
Last reply by Jesus.T.Parker, -
- 2 replies
- 767 views
hello again, i've got this plant growing outdoors, a few weeks into heading and it is developing rusty little spots on the fan and bigger leaves. it seems to spread over the leaf until it turns brown and drops off. it doesn't effect the new growth, and doesn't seem to have stunted.(still growing well) all the other plants are doing well. only this one seems to be affected. it is not deficient in any major or secondary nutes. ph is also fine. any ideas?
Last reply by wade ounce, -
Brown Leaf Tips 1 2
by Suet- 10 replies
- 1.8k views
I posted on here with my problem a couple of weeks ago and you guys seemed to solve that one, so here's another one for you. All the leaf tips on one of my plants are turning brown and dying. Any suggestions ?
Last reply by skankmaster, -
I woke up to find a 2 week old seedling had been munched on during the night and being so small had collapsed under the weight of whatever munched on it I couldn't find any grubs or other insects on the plants and couldn't work out what it was. Last night I went out to check the plants after dark and found a fat arsed earwig heading towards another plant. I read in a book that these bastards eat holes in the leaves at night and Pyrethrum is the recommended solution but the plants had already been sprayed with pyrethrum so that doesn't work. Does anyone know any other ways (preferably chemical free) to stop my plants becoming an allnight diner for earwigs? Thank…
Last reply by SweetJane, -
- 6 replies
- 825 views
http://www.avrdc.org.tw/LC/cabbage/dbm1s.jpg Does anyone else have the same, never-ending problem with these varmints chewing your plants ? Adult http://www.ento.csiro.au/aicn/images/cain2254.jpg They seem to just keep reappearing soon after eradication.
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- 11 replies
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my plants are 10 weeks old and 6 weeks into flower, growing in per/ver mix, hand watered under a 400 watt son t. about 2 weeks ago i noticed some very small black bugs, less than 0.5mm, crawling around in my medium, they are all black, with what looks like a pair of little horns or feelers on the front, ive been told they are fungus nats and they wont harm my plant....Is this right..? my plants are all healthy and have no sign of trouble..Its just that theres quite a few now and I would like to make sure they wont kill my babies... There are no bugs on the plant, just in the medium...and they dont fly around.... Cheers for da help....
Last reply by skankmaster, -
- 11 replies
- 1.4k views
Hi, I am a relatively new grower, grown once before but this my first time with hydroponics. I have 5, 10 cm plants, in grodan 3 inch blocks. The plants look healthy but have a very slight white discolouration on some the leaves. More disturbingly there is a white mould growing on the top of the grow block. There are no roots showing through the block so I cannot see any roots at the moment. Has anybody seen this before or any advice would be very much appreciated.
Last reply by melver, -
- 8 replies
- 2.1k views
You all know by now I hate the use of chemicals in a grow. We smoke the stuff so don't pollute it! there's many natural alternatives to get rid of bugs and I'm going to post some of them here becouse I'm convinced that if you have some more information, you can use them in Australia too. I also think you can order predator bugs online. Here's an example, to get rid of spider mites, there's a bug called "Phytoseiulus persimilis". it's a small predator bug that simply eats the spiders, NOT YOUR PLANTS, and when there's no spiders left to eat they just die out and dissapear. for more information on "Phytoseiulus persimilis". the little predator looks like this : h…
Last reply by skankmaster, -
- 0 replies
- 823 views
The growing condtions of the seedlings are they recieve full sun, they are grown in their own pots. The lower part of the stem is a light yellow-brown colour, the upper part of the stem is dark purple, the stems are not mushy and no smell nor do they fall over. Just after the seedlings emerged there was a period of 3 days of heavy rain. The 5 effected seedlings have been moved to another part of the yard which is in full sunlight. I do not think humidity is the problem here may be over watering???
Last reply by love4sensi, -
- 1 reply
- 1.1k views
I have a small problem out of the 15 seedlings i have 5 have what appears to be collar rot 1/3 of the stem growing from the base of the potting mix is brown, but the rest of the stem is in what appears to be good health with nice dark purple colour to it. Is it worth keeping these seedlings? Or just pull them out??
Last reply by Luke Skywalker,
