Can this be added to a resivior to treat root aphids in a re circulating hydroponic system, these guys were in my rockwool cubes when i got them beware............. (grodan)
Personally I used merit, 3 1/2 teaspoons in my 35 gallon res. and ran the drip sys, and also handwatered from the same res to ensure full soaking. I noticed nothing living in there, crawling or flying after 24 hours. 14 days later and still no signs of anything alive, and nothing dead draining into the resi anymore..
1 soaking for an hour or 2, and then drain.. i don;t think there is any reason to rinse, just start hitting them with nutes again...
that there is a commercial landscape product for systemic control of sucking insects. Don't poison your peeps. Your Better of with some Diotemaceous earth.
If your worried abotu merit 75 ... just know that its used up until the day of harvest in california on grapes and pecans so i would say that it dosn't transfer to the upper portion of the plant..............
thanks greyskull! Gonna kill those buggers now