I used rosemary oil (in the clear 1/2 litre bottle), it's white on aphids that were on the leaves of my first round of peppers (weird but they never went near my cannabis). They laughed at me, don't get that one. It was like twenty bucks to and I ended up pulling all of my savina habs, several brain strain seven pots/pods, several douglahs, and several bhut jolokias. I was pissed. I third the nematodes, and agree w tru about having the stuff in the kitchen. Haha. But in the interest of knowing if it works, let us know your results ed!