Had to spray during flower
- Thread starter bigstensy
- Start date
What is JWA and JHS? BTW in flower I root drench with Monterey Spinosad (1-2 oz/gallon) to treat any thrip outbreak (we are endemic for them).
OldMedUser
Well-Known Member
I could understand doing that for fungus gnats as a critical stage of their life cycle is maturing in the soil but thrips only live in the canopy so a root drench shouldn't have much effect on them. I've never used Spinosad so if it is absorbed by the plant to kill bugs that feed on the leaves then I can see that working but then you're smoking or eating that stuff too so not something I would ever use on my plants.
I got some of that Gnatrol bacterial powder for the last time I had gnats and just one medium dose wiped them right out. For thrips and mites good old Safer's End All insecticidal soap with 10ml/L canola oil added works great for them but not something I want on buds so it's important to start any spraying a couple weeks before flowers start making buds. 4 or 5 sprays 4 days apart generally takes care of them. A 500ml bottle of the concentrate costs the same as 1L of the pre-mixed and makes 10L. As it kills by suffocating and not poisoning the bugs multiple products aren't needed. Very low toxicity compared to most other products. Inhaling the mist can irritate the throat but isn't going to cause a trip to the emerg.
Please don't mention that to my thrips so far the root drench kills them and spinosad is a translaminar not a systemic. I still don't want it in my leaves (veg or flower) so I root drench.
BTW there's ^ the article on thrips spending part of their life cycle in the soil which is why Spinosad works. But it takes some perseverance as you need to treat any whose pupae did fall to the soil in the next gen. But they all do eventually I've eradicated them many times LOL but outdoors has tons, boo
BTW any idea what JWA and JHS is?
OldMedUser
Well-Known Member
Some of the adults must fall in the soil too when they jump as I hunt them down manually. I've got rid of them a few times by just using a big old magnifying glass to find them and a quick rub kills them. Ok for a few plants if you catch them early enough but rather futile with a lot of plants and a well established population. When I sprayed I'd spray the surface of the soil too and putting some diatomaceous earth around the main stem prevents them from climbing back up. Covering the surface with DE never seemed to work to eradicate gnats as the little buggers get in through the drain holes too. Finding consumer sized portions of Gnatrol isn't easy but I got lucky. It has the same bacteria as those mosquito dunks so just a quarter of one of those mixed with water should treat a few plants.
I have no idea what JWA and JHS are but the OP must think everybody does or would have used the full names.
I try to stay away from nasty chemicals but we've got some thistle patches spreading on our small acreage that I'm going to spot spray with RoundUp this spring as they start showing. Pulling them out is no good as they spring right back up from the roots left in the ground and the glyphosate in RoundUp is very systemic so kills all the roots too.
joesoap2013
Well-Known Member
I had little flies a few grows back was able to keep on top of it thk fk
Owl vacuum cleaner pole shake the pot any of them pop up hoover them up
And even hoover up the top inch of the soil
And scrape the top inch of the soil make it like fluffy so they can't lay eggs
Owl vacuum cleaner pole shake the pot any of them pop up hoover them up
And even hoover up the top inch of the soil
And scrape the top inch of the soil make it like fluffy so they can't lay eggs
OldMedUser
Well-Known Member
Yeah, fungus gnats aren't a big deal if you can keep the numbers in check. Too many can really damage the feeder roots tho so I always keep a yellow sticky tape or two in a couple pots for early warning. A lot of times they come in via bags of soil or even soilless medium like the ProMix HP I like to use. I always make sure bales of HP I buy have no holes in them as the little buggers will lay eggs in there while the bags sit around waiting to be sold. Keep any bags of medium far away from your grow space so they don't keep re-infesting the plants while you're trying to get rid of them.
Jadam Wetting Agent and Jadam Herbal Solution, they’re homemade natural pesticides. The wetting agent is just homemade liquid soap made with lye and canola oil, and the herbal solution is made by boiling specific herbs in water for hours. I made mine with ginkgo leaves. Definitely wiped out majority of the bugs with the one treatment, but just wondering how bad it is to spray the early buds and have the hairs turn orange and curl like that overnight
My bad, they mean Jadam wetting agent and Jadam Herbal Solution. Homemade natural pesticides used in Jadam ultra low cost natural farming, invented in Korea. Stuff definitely works, just hoping it didn’t stunt my plant too muchSome of the adults must fall in the soil too when they jump as I hunt them down manually. I've got rid of them a few times by just using a big old magnifying glass to find them and a quick rub kills them. Ok for a few plants if you catch them early enough but rather futile with a lot of plants and a well established population. When I sprayed I'd spray the surface of the soil too and putting some diatomaceous earth around the main stem prevents them from climbing back up. Covering the surface with DE never seemed to work to eradicate gnats as the little buggers get in through the drain holes too. Finding consumer sized portions of Gnatrol isn't easy but I got lucky. It has the same bacteria as those mosquito dunks so just a quarter of one of those mixed with water should treat a few plants.
I have no idea what JWA and JHS are but the OP must think everybody does or would have used the full names.
I try to stay away from nasty chemicals but we've got some thistle patches spreading on our small acreage that I'm going to spot spray with RoundUp this spring as they start showing. Pulling them out is no good as they spring right back up from the roots left in the ground and the glyphosate in RoundUp is very systemic so kills all the roots too.
joesoap2013
Well-Known Member
Yep your right man the drain holes in the bottom of the pots is a spot you find them
Watering the plants is a problem
I would water ..then leave for an hour
Then i would scrape the top of the soil then cause it bes compacted it will dry out quicker
Bingo man some dodgy times of year to buy soil say fox Farm has a load of bags of soil sitting out in the summer on a pallet they all get flies in them
Watering the plants is a problem
I would water ..then leave for an hour
Then i would scrape the top of the soil then cause it bes compacted it will dry out quicker
Bingo man some dodgy times of year to buy soil say fox Farm has a load of bags of soil sitting out in the summer on a pallet they all get flies in them
Ahh I see thanks. I could see lye causing your pistils to turn color.
OldMedUser
Well-Known Member
Most soap is made with sodium hydroxide, NaOH,(lye), and some sort of fat/oil. Higher quality soaps are made with potassium hydroxide, KOH, (caustic potash), and are gentler on the skin. I needed to get some KOH to use to make a reagent to use for the Beam's Test to check for the presence of CBD. Easy test to do and showed me the mother plant I had to grow high CBD pot didn't have any CBD at all so I killed the bitch!
OldMedUser
Well-Known Member
The soap spray will damage pistils already out but won't really affect the yield or potency at harvest. New flowers should have normal pistils. If sprayed on small buds it can make your pot taste soapy tho depending on how big the buds are when sprayed. I would spray plain water to remove as much of the soap residue the day after tho. If the plants are small enough even flip them upside down and swish around in a pail of clean water to get as much off as possible.
I was forced to use one good spray at 3 weeks and ended up just making oil out of all the buds from 4 plants. Nasty to smoke.
Budzbuddha
Well-Known Member
Ok - i can’t stand the suspense…. PICS.
Drop That Sound
Well-Known Member
There are over 7770 different species of thrips.. 
Much appreciated, thank you! I know the soap naturally breaks down in a few days, but I’ll spray with water anywayThe soap spray will damage pistils already out but won't really affect the yield or potency at harvest. New flowers should have normal pistils. If sprayed on small buds it can make your pot taste soapy tho depending on how big the buds are when sprayed. I would spray plain water to remove as much of the soap residue the day after tho. If the plants are small enough even flip them upside down and swish around in a pail of clean water to get as much off as possible.
I was forced to use one good spray at 3 weeks and ended up just making oil out of all the buds from 4 plants. Nasty to smoke.