Need help identifying and eradicating pest

first_timer

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Hi everybody. I thought it was a spider mite, but these are black\brown and there is now spider web or anything like that. Plant is in the second half of it's flowering stage. Any help greatly appreciated
 

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WeedHopper

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Yep. You can get a spray bottle. Mix 70% water and 30% alcohol with a teaspoon of dish soap. Mix it up really good and spray the top and bottom of the leaves until its dripping. Let it set for about 30 mins and rinse it off with clean water. I use my garden hose. Do it every other day for a week. Keep a close eye on the plant. When you use your garden hose to spray the plant after treatment... it cleans it and knocks off the dead bugs.
 

WeedHopper

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Be careful about working outside and then coming in close to your marijuana plants. You most likely infected them yourself. They will hitch hike on your clothes.
 

zem

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I personally would not use alcohol on buds. it dissolves trichomes. I would try a high dose potassium soap that kills on contact and does minimal harm to the plant. You have them bad and early on. if you let them be, they will take over the entire grow by harvest time. Put some ant bait all around your grow. Ants herd aphids for their honeydew secretions and whenever I had aphids, i always had ant activity before. I got a syringe of ant bait, i place gel drops all around and the ants take chunks of that bait to the queen and kills the colonies around the grow. ruthless but quite effective.
 

first_timer

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Yep. You can get a spray bottle. Mix 70% water and 30% alcohol with a teaspoon of dish soap. Mix it up really good and spray the top and bottom of the leaves until its dripping. Let it set for about 30 mins and rinse it off with clean water. I use my garden hose. Do it every other day for a week. Keep a close eye on the plant. When you use your garden hose to spray the plant after treatment... it cleans it and knocks off the dead bugs.
Did the first treatment with the following mix:
  • 70% isopropyl alcohol solution: 3 parts
  • tap water: 7 parts
  • unscented dish soap: 0.5 teaspoon per 300 ml

Not really seeing much change, but it's really hard to tell - there are still a lot of them in all the crevices of the buds. Tried to remove manually as many as I could with a Q-tip today - but that's a lot of work, they are so tiny. Gonna do another treatment tomorrow morning. Should I add a drop of neem oil in the mix maybe?

I personally would not use alcohol on buds. it dissolves trichomes. I would try a high dose potassium soap that kills on contact and does minimal harm to the plant. You have them bad and early on. if you let them be, they will take over the entire grow by harvest time. Put some ant bait all around your grow. Ants herd aphids for their honeydew secretions and whenever I had aphids, i always had ant activity before. I got a syringe of ant bait, i place gel drops all around and the ants take chunks of that bait to the queen and kills the colonies around the grow. ruthless but quite effective.
Ants shouldn't be a problem cause it's inside. Yeah I noticed after alcohol treatment many stigmas on the flowered shrieveled a bit. Any particular potassium soap you would recommend?
 

CrashMagnet

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I use this stuff fairly often when there is an infestation, but not so much for prevention. Aphids and thrips practically dissolve when I hit them with it. Aphids kept returning, though. Thrips did not. I don't think it worked very well on spider mites. Pretty sure they drink it to get high.
 

WeedHopper

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Vegg is the best time to catch and kill the aphids of course. Only had them once in flower and it worked. IM sure it could have melted some trichomes but once the alcohol evaporates it should still leave the candy. All i know is the smoke was still very good and i had no more aphids.
AS for the other stuff ppl are talking about,,, I have never used any of them on my weed,, so I don't know anything about those products.
 

RosterMan

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DO NOT USE NEEM in late flower your Buds will taste like Sheet
 

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