Does "accrue not only to" mean "depend not only on"?

1) Does "accrue not only to" mean "depend not only on"?
2) Does "This reduction in economic incentives to adopt BMPs and the economic and environmental benefits associated with the HT crop-glyphosate combination" mean "this reduction (including the reduction in economic incentives to adopt BMPs and the reduction in the economic and environmental benefits associated with the HT crop-glyphosate combination)"?

Context:

Because the pollen and seeds of many different weed species can disperse between farms in the atmosphere and in conjunction with the movement of animals and farm equipment, economic incentives for adopting best management practices (BMPs) that maintain the effectiveness of glyphosate over time are reduced (Miranowski and Carlson, 1986). The economic and biological impacts associated with any farmer's pesticide-use decisions will accrue not only to that farmer, but to other nearby farmers as well. Unless resistance management is coordinated across farms, economic incentives for farmers to account for the effects of their decisions on resistance are reduced, even on their own farms. This is because the effectiveness and longrun economic beneits of using BMPs to manage resistance depend on the level of adoption by nearby farmers, while the short-run costs of BMP adoption are borne solely by the adopters. In this setting, resistance can evolve at an economically ineficient rate because market-based economic incentives are insuficient to promote an eficient level of BMP adoption (Hueth and Regev, 1974; Feder and Regev, 1975).

This reduction in economic incentives to adopt BMPs and the economic and environmental benefits associated with the HT crop-glyphosate combination have contributed to an overreliance on glyphosate and a concomitant reduction in the diversity of weed management practices by U.S. crop producers. This, in turn, has contributed to the evolution of glyphosate resistance in some weed species and a shift in weed composition in ields, favoring weeds that are naturally resistant to glyphosate. This leads to higher management costs, reduced yields and proits, and increased use of
less environmentally benign herbicides. Glyphosate resistance is currently documented in 14 U.S. weed species (Heap, 2012), and the potential exists for much more acreage to be affected (Frisvold et al., 2009; Shaw et al., 2011).