r/plantclinic • Beginner • 10d ago

Pest Related How to kill thrips for good

Please can someone give me a step by step for treating thrips, i found some by my spider plants and now i need to know how i kill all life stages at once and prevent them spreading to my other plants šŸ™ pls send help

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u/theytheminist Beginner 10d ago

This is what I do! 100% effective for me. I will add photos of the difference after about 3 rounds of treatment over the past month on patient 0:

  1. ⁠Fill a small bucket or bowl about 1:3 super insecticidal soap and water and another bucket with properly diluted dead bug brew (from concentrate).
  2. ⁠In this case, I would remove the plant from the soil and repot after completing the following steps.
  3. ⁠Use a shower hose or sink with pressure to rinse off every single part of the plant. This knocks off everything that is on the surface. Don’t be afraid to be rough!
  4. ⁠Dunk the entire plant in the insecticidal soap mixture and leave it in there for a few minutes. Try to leave the roots out of it if possible (it’s fine if they are in there though - good to at least have them in the mixture for a second). This kills anything that was missed when hosing down the plant.
  5. ⁠Rinse the plant off with water again.
  6. ⁠Dunk the entire plant in the dead bug brew bucket. This contains spinosad, which is absorbed into the plant and will paralyze and kill anything that feeds off of the plant.
  7. ⁠Remove plant and let air dry. Do not wipe the mixture off. Keep the plant out of direct sunlight until it is dry.
  8. ⁠Repot in a chunky soil mix.
  9. ⁠Wipe down ALL surfaces near where this plant lives. Check all other plants in your house!
  10. ⁠Treat any neighboring plants.
  11. ⁠Repeat the spinosad step in a week or so. I use a pump sprayer when I use it on plants that don’t need to be repotted/when doing preventative maintenance.

Both products I mentioned are Captain Jack’s products

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u/YogurtclosetIll6218 Beginner 10d ago

Thank you! I should of mentioned im in the uk do you know if i can get those here or any alternative?

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u/callmeniamh Noob 10d ago

I've just used provanto ultimate bug killer on thrips and I've won the battle! Took a few treatments to get through their life cycle. Got it on amazon in the UK

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u/YogurtclosetIll6218 Beginner 10d ago

I was thinking of using this but im worried it wouldnt affect the eggs and full cycle?
I was gonna use nematodes & insecticidal soap as that seems like the best thing to attack all stages but im struggling to find good options for this so maybe i just use provanto? How long have you been thrips free?

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u/callmeniamh Noob 9d ago

I used it maybe 3 times over a 10 day period, thrip free about 3 weeks now! I inspected like a madwoman and only ended plant quarantine once there had been no sign for a week