Here is a surprising but true fact. My father who works for a coal mining company proved something to me. Would you believe that honeysuckle and kudzu vines can stop a D11 dozer??!! Now, to give you a reference point, the D11 dozer weighs over 100 tons, has about 850 hp, can push 45 cubic yards of dirt per pass, as it gulps over 40 gallons of diesel fuel per hour, and generally costs about 2 million dollars. We drove into a grove of honeysuckle and kudzu vines and hooked a massive wad of them with the blade and began to drive through them. Huge trees were falling behind us as the vines began to take hold. Soon black smoke began pouring out of the exhaust and full power was applied. We moved ahead for another 20 or 30 feet dragging even more vines with us, and then it happened; both massive tracks on each side began spinning! The blade was still about 1 foot off of the ground and all that was holding the beast was those vines, yet it was stopped!
Obviously, two smaller passes and all was ripped out. However, my only point is that it amazed me how much strength mere vines can have! I would not have believed that one of the largest and most powerful dozers on the planet could be stopped by some measley honeysuckle and kudzu vines!