My extension program has been mainly focusing on weed management in rice and other agronomical crops. The program reaches front-line weed managers. My program has direct contact with natural extenders of weed management information who can multiply my efforts to reach the front-line managers. The goal of my weed management program is to reduce risks of weeds and weed management related strategies. My efforts coordinates the use of weed biology, environmental information, and available technology to prevent unacceptable levels of weed damage by the most economical means, while posing the least possible risk to people, and the environment. Herbicide is important components of any program to manage weeds. However, off-target herbicide movement may cause plants and environmental damage. My extension efforts are also focused on safe application of herbicides by using modern spray technology and understand the physical and environmental factors that contribute to off-target movement.