Largemouth bass love to hide under thick vegetation when the conditions are right, making weed beds great areas to target. Why? In part it's due to the sense of protection that the cover provides. But equally important are the production of oxygen and improvements in water quality. Both lead to healthy bass and an abundance of prey. Dying vegetation, however, has the opposite effect and should be avoided. It still provides cover, but can deplete oxygen to a point in which fish head for other nearby areas.