Dietary fiber or roughage is the indigestible portion of food derived from plants. It has two main components: 1  Soluble fiber, which dissolves in water, is readily fermented in the colon into gases and physiologically active byproducts, and can be prebiotic and viscous.
Usage. If the willow tree is small, apply the herbicide as a foliage spray covering the willow's entire foliage until the chemical begins to drip off the leaves. For larger willow trees, cut the upper and lower branches off with a chainsaw and cut the trunk as close to the ground as possible.
Weeping willow trees are deciduous -- trees that lose their leaves in the fall. The tree is a native of western China and grew in ancient Babylon, which is where its Latin name, salix babylonica, comes from. The weeping willow tree is a fast grower, growing 8 to 10 feet in a year. Unfortunately, fast-growing trees do not have a long lifespan -- the weeping willow's is 50 to 100 years. Weeping willow trees grow to about 50 feet tall, with an equal spread.