I need help! I have these small gumball trees on my land. Ive cleared everything else off but these small stubs are still sticking up out of the ground about 5''. I need advice on getting rid of these stupid things. Ive rented a 90 hp bobcat on tracks w/ toothbar and it just stripped them. Ive also bushhogged them and thats why I have only 5" out of the ground. Can I spray them or something? Help me please Im building a home and barn there right now. The roots on these things are about 2 or 3 feet in the ground and I have hundreds of them so I cant dig that deep into the ground to get them out. Thanks!