Present on the agriculture, Weeds are a problem in crop plants because it unwanted and difficult to get rid of it. With such problems, the production of chemicals to weed out widely take the chemical can eliminate weeds quickly utilised. The problem is chemicals that are expensive and when the injection is absorbed into mixed with minerals in the soil make the chemical residues. The ground was acidic conditions and can't grow other crops If we eat plants cultivated will harm from chemical plants. So the organizer has a concept to produce herbicides from nature using natural vegetation by local can find it easy and inexpensive. Experiments to study the vegetation of any kind can be better weed and how to produce herbicide without the use of chemicals. The organizers hope that the science project is useful in agriculture and the need. Weeds without using chemicals.