stinkyattic said:Access- multiple steps to killing thrips:
Bombs- Set them off at intervals of 4 days, 3 if you are running quite warm. You have to kill protected instars, such as the eggs (in meristematic tissue) and pupae (under soil surface), by letting them hatch out and become vulnerable. I'd set off 3 bombs.
Physical barrier- Cut a slit to the center of a paper plate. Slide it around the stem of your plant, LOOSELY covering the surface of the pot. Thrips pupate in the soil; the larvae must drop off the leaf surface and burrow into the soil to become winged sexual adults. If they hit the plate and fall on the floor, they are helpless and starve to death.
Sticky traps- Can be put on the soil surface to monitor and trap winged adults. Thrips prefer blue over the more common yellow ones that gnats and whiteflies are drawn to.
Hope that helps!
SA: I was thinking about this last night while researching thrips. Apparently they do develop in the soil....however, I'm using hydroton.....would you think the same is applicable? How are they able to thrive in an ebb & flow setup?
I'd think they'd drown and be washed away. It seems unfeasible that this would be the case for my particular hydroponic layout. What are your thoughts about this?
I'm wondering if this fact will also work in my favor with regards to keeping their population in check while attempting other methods of elimination.
If one of the primary places these bugs live and develop is the soil and I have a soil-less medium like hydroton.....that may be one strike against their survival long term.
As far as the blue sticky traps are concerned: I've never seen blue ones.....hmmmmmmmmmm. I'll have to look into that.
Thanks a bundle.