Drench in Beauveria/Metarhizium twice 3 days apart. Add aminos and a little sugar. For your second drench, add immunoboosters to it. After the 6th day, drench in spirotetramat/imidacloprid full dose with surfactant. Reason for this is spirotetramat/imidacloprid + surfactant will inhibit Beauveria somewhat and work better if you let the beauveria kill run its course, then drench the chems. If you do foliar of spiro, you can reduce the amount you use and the effect is good. Imida won't work the foliar route on RA. They are a good combo showing 90% kill after 14 days in field trials. For field trial, that is good. No need for overdosing. Just go standard rates on label.
I've got 100% kill on areal aphids with Beauveria spray...just bag the plant for 24hrs after spray, nothing survives it. Works as well on mite, even eriophyid/tarsonemid mtes (needs an additional compatible surfactant to get into the tiny cracks though- combo with insecticidal soap is great) .
I've ignored RA to the point they covered the floor with walkers (up to 5 per square inch near pots). Hardly saw winged ones though. Harvested good stuff with low yield
You can get kill with avid drench...it works on nematodes too, provides some residual inhibition of the todes- abamectin has a really long half life in soil. Aba will only work on contact with aphid...so after a couple hrs, any activity will have stopped because the aba strongly binds to particles.
I grow with them around all the time. Get em every year at my last homestead. Its because I keep houseplants that go in and out every year and I don't care a whole lot about it. For a commercial op, I'd add a bunch of other stuff and not end up treating for em in the first place (some of your standard bennies inhibit aphid in the soil).
I tried stuff like acephate. Killed most of the plants in the room. Still had the aphid. The protocol above works well if you can get a few hundy together for it (the cheapest units are like 80 a pop with this stuff, but you will have a life supply as an individual grower; the beauveria won't last a lifetime though, but you can figure out how to make your own supply if you try and reup your spores every few years)
Last edited by Bongstar420; 02-15-2018 at 02:13 AM..