My dad used a spinning reel with 8 lb test and a #3 Veltic spinner with a treble hook. He's cast the spinner past them then retrieve the line until it was close to across their head and the treble hook almost touching their butt. Lock the reel and then set the hook into them and reel them in.
He could also wade up to them and grab them barehanded.
They are delicious and there is meat on the legs plus a bit on the back.
He'd clean them then marinate the meat in soy sauce, a bit of dry gin, freshly minced ginger and garlic and black pepper.
After an over night marinade he'd boil rice, as the water level dropped until just a bit above the surface of the rice, in went the frogs and marinade, stir then cook the rice as normal.
The frog would be moist and delicate and the rice would be flavored by the marinade.
Finish with a few drops of sesame oil and top with minced green onions.