Summer is in full swing across Texas, and John Findeisen and his crew have got their pedals to the metal.Findeisen leads the Texas Parks and Wildlife Department's Aquatic Habitat Enhancement Team. The small staff is charged with the huge responsibility of helping to keep an army of aquatic monsters at bay on inland waters across 254 Texas counties.The monsters are invasive plants with peculiar names: giant salvinia, common water hyacinth, common salvinia, yellow floating heart and crested floating heart, to name just a few.Some are considered noxious weeds.