Fund a Jatropha Seed Oil Press for Haiti, Change the Lives of Thousands For the past three years, 1,000 farmers have been growing hundreds of thousands of Jatropha trees in southern Haiti. Why? Because the seeds from these trees produce oil so rich it serves as a straight replacement for diesel fuel. Yes, that means you can run your car, truck or farm machinery on it. Right now, Haiti has to import all of it’s petroleum. The jatropha program can reverse this trend.