SpawnOfShulgin
Well-Known Member
Title kinda says it all. Thanks in advance. Been using neem oil for a month. I am 2-3 weeks into flower.
How to kill thrips in flower (neem oil has failed me)
- Thread starter SpawnOfShulgin
- Start date
pete_pumpkin
Member
Try a solution of 10% IPA with water (or even watered down vodka) and a drop of dishwashing detergent in say a 200ml spray bottle. Spray on top and under leaves every few days. I'm trying this at the moment with spidermites - I don't see why it shouldn't work for thrips..
Smokesteve
Well-Known Member
I second this
Jimbo the Gael
Well-Known Member
Chili pepper+garlic spray worked for me on aphids and soft brown scales.
There are also predatory mites you can buy.
There are also predatory mites you can buy.
if you are early in flower than i would just use a " doktor doom, fogger " .That will kill anything in your grow room , and if your plants haven't developed buds yet, than there is no bud to get the insecticide on. You should only need to do this once but act now before your buds have grown.
Green_Alchemist
Well-Known Member
I had a case of them 4 weeks into flower. Tried to spray but didn’t work. (In Canada spinosad products are banned, and I didn’t have much luck with the others)
I decided to research the “enemy” and find out exactly what I’m dealing with...
Turns out that thrips will pierce the leaves and lay their eggs INSIDE the leaf, to protect it from wind/predators etc. (This is why they seem to keep coming back no matter how often we spray)
Once they hatch, they eat the leaves until they are ready to transform into adults. This is when they will drop to the soil and complete the transition into adulthood, and climb back up to repeat these steps. I found that most hang around the lower leaves/lard buds as it is close to the soil and typically less airflow.
The BEST organic treatment (if predatory pests are not your thing) is to stop the cycle - or make it as hard to go through as possible.
This is how I got rid of the thrips in my garden:
- 1/8th of an inch of diatomaceous earth on your topsoil (this acts like glass/razor wire, so it will stop younglings from going in)
- Everyday, cut off affected foliage, larf. These will most likely carry eggs/next gen.
- squish anything you see, and make sure the foliage you cut off gets bagged and thrown away in the outside garbage. (Don’t want any returning pests)
This method is done every day/other day, and isn’t the most fun, but I couldn’t find any thrips in my last month of flower, nor any signs they survived. Hope this helps some in your little “war”
Know thy enemy
Cheers!
I decided to research the “enemy” and find out exactly what I’m dealing with...
Turns out that thrips will pierce the leaves and lay their eggs INSIDE the leaf, to protect it from wind/predators etc. (This is why they seem to keep coming back no matter how often we spray)
Once they hatch, they eat the leaves until they are ready to transform into adults. This is when they will drop to the soil and complete the transition into adulthood, and climb back up to repeat these steps. I found that most hang around the lower leaves/lard buds as it is close to the soil and typically less airflow.
The BEST organic treatment (if predatory pests are not your thing) is to stop the cycle - or make it as hard to go through as possible.
This is how I got rid of the thrips in my garden:
- 1/8th of an inch of diatomaceous earth on your topsoil (this acts like glass/razor wire, so it will stop younglings from going in)
- Everyday, cut off affected foliage, larf. These will most likely carry eggs/next gen.
- squish anything you see, and make sure the foliage you cut off gets bagged and thrown away in the outside garbage. (Don’t want any returning pests)
This method is done every day/other day, and isn’t the most fun, but I couldn’t find any thrips in my last month of flower, nor any signs they survived. Hope this helps some in your little “war”
Know thy enemy
Cheers!
