1. pathogen-any disease-producing agent (especially a virus or bacterium or other microorganism). microorganism, micro-organism-any organism of microscopic size.infectious agent, infective agent-an agent capable of producing infection. Translations.. pathogen-any disease-producing agent (especially a virus or bacterium or other microorganism). microorganism, micro-organism-any organism of microscopic size.
Agricultural Tools. The Agricultural Tools ClipArt gallery offers 195 illustrations of hand tools such as plows, pitchforks, insecticide sprayers, rakes, and rollers.
The tractor is the primary piece of equipment that you use on the farm. Its primary function is to pull farming equipment, but you can use it for many things. An example of a different type of tractor is a front loader tractor.You can use this type of tractor for a number of things such as loading manure into a manure spreader.ombine. Combines are usually the most expensive piece of equipment that farmers buy.It is the most important piece of farm equipment as well. It is the piece of equipment that you use to reap the benefits of your hard work. You use a combine to harvest your crop.