The venom of the black widow spider contains poisonous chemicals that make people sick. Black widows are found throughout the United States, mostly in the South and West. They are usually found in barns, sheds, stone walls, fences, woodpiles, porch furniture, and other outdoor structures.
Some types of grass hay, in dry weather conditions or on dry ground, will be much too dry when baled as small bales using the eight to 15 percent moisture (the traditional rule of thumb) as a guide. Some of this grass hay produces the best quality bales when baled at 24 to 30 percent moisture.
1 It is generally recommended that alfalfa not be fed as a horseâs sole forage ration though (see this post to learn more.)  Clover: This is a highly palatable hay with a protein content usually running between 13-16%. There are several different types of clover used for hay, but red clover is the most popular. However, clover can be affected by a mold that causes horses to salivate excessivelyâgiving horses the âslobbersâ.