Natural Herbicide vs. Commercial Herbicide
Grade Level: 6th to 9th; Type: Biochemistry
Allelopathic substances work like herbicides, preventing the germination and growth of the seedlings of competing plant species. The research aspect of this science fair project is to compare the natural allelopathic chemical produced by the Black Walnut tree to that of a commercial herbicide in stopping the growth of a shrub.
Warning is hereby given that not all Project Ideas are appropriate for all individuals or in all circumstances. Implementation of any Science Project Idea should be undertaken only in appropriate settings and with appropriate parental or other supervision. Reading and following the safety precautions of all materials used in a project is the sole responsibility of each individual. For further information, consult your state's handbook of Science Safety.