Pesticide use in conventional system can use synthetic chemistries whereas organic can only use 'natural' formulations. Thus, it is extremely difficult to compare apples to apples and most studies are flawed. Because the 'natural' formulation aren't as effective (usually), this needs to higher nominal rates.

Again, it's very dicey comparison. I'm not advocating convention > organic, but feel the need to pushback on people that think organic > conventional