Hydrilla my man is not your enemy, quite the opposite, it 's your friend, all you need is to take a good look with calm at the weedbed, use your powers of observation and you will start noticing things. If the weedbed is a huge expanse of weeds all of the same size with no pockets get out of there, there ain 't nobody there, a quck glance is not good enough you need to take a real good look at the weedbed. Weeds don 't grow just because, emergents like hydrilla only grow under very special conditions, water quality and clarity, depth and bottom composition are key elements in the way weeds grow. Weeds grow only as deep as there 's enough light to support them, weeds grow only if the water quality is good, weeds grow only if the substrate ( bottom composition ) is adequate otherwise they either don 't gro or grow stunted. Casting a bait on a weedbed without thorough study of the weedbed is just a waste of time, you 'll be casting to nothing and nothing will hit it.
Stand up on your boat and look at the weedbed, look for:
1.- "pockets": you can differentiate pockets from the rest of the weedbed because they look different, you can see "holes" that can be only a couple of feet wide up to several feet wide, those pockets are caused by either greater depth in that area or different bottom composition, something is stunting the growth of the weeds in that area, COVER ON STRUCTURE. If you see holes cast past the hole and retrieve towards the hole then drop your bait as soon as you reach the edge of the hole.
2.- points: just like you look for points in the lake weeds also create points, those points are formed because the water around is deeper or has different bottom composition, COVER ON STRUCTURE again.
3.- eddies: if there 's current eddies will form around the weeds, it doesn 't necessarily mean current as in a river, wind also causes that effect, wind and current are elements of cover, COVER ON STRUCTURE.
Topwaters, súper shallow runners, lightly weighted or weightless soft plastics, spinnerbaits all of them are good baits for fishing the salad.