how much of the following do I use to kill the...

knats and thribs?


Hello!!, this is my VERY FIRST post here! So very cool!

here is my question. I purchased Merit 75 wp AND Spinosad to kill knats and thrips that have infested my veg room. I am in week 4 in veg and cant transplant until i kill these fuckers.

So heres my question, I know Im supposed to add these 2 products to my water and nuts but i have ABSOLULTELY NO IDEA how much to add!!!???

how much of these products do I add to one gallon of water?

Thank you very much in advance

Hi brettsilva welcome to the forum!!

I have never used Merit 75 wp, but I have used spinosad.
You do not mix in your nutes!!!
It is a foliar spray.

The brand I use calls for 4 tbl per gallon.

Read your instructions mixing directions are required to be there.

Good Luck :hippy:

AWESOME!!! Thank you very much Dreadscale!! ya man, I was about to pour it into my water/nuts. Close call there.

Ok, I got me a bottle to spray it. Im going to mix the Merit in with it. A double wammy ya know.

The spinosad I am using is the Monterey Garden Insect spray. It says 4 tbls as well. Is this just a one time spray? or do I have to spray it more often?

thanks Dreadscale

Don't over do it. Most people end up hurting there plants because of panicking over bugs. Hit them about every 3 days, being sure to spry the underside of the leaves. Most bugs have a 3 day egg cycle, so if you hit them about every 3 days you'll get them when they're young when they're easy to kill.

The easiest way to keep bugs out of your space is to use a No Pest Strip. They are like $7 at Lowes in the garden section. This eliminates the error in applying too much or not enough.

thanks guys, the combo of the solidad product and the pest strips have WIPED out all 3 different speicies of pests I was fighting. It took 3 sprays over 10 days, and got em :)

Thanks again guys!