This is a paper I was reading out of Australia Nothing stunning just interesting facts, I did not know the romans used it Effect of compost extracts and teas on diseases Sprays based on compost extracts have been used for hundreds of years. There is evidence that the Romans used compost teas and the ancient Egyptions used preparations based on compost or manure extracts as long as 4000 years ago, although, not surprisingly, there are no records of how these were made! (Cascadia Consulting Group, 2001). Interest in compost extracts and teas waned when pesticides became available in the 20th century, since pesticides tend to give better, more reliable control of most foliar diseases. However, the recent increase in sustainable and organic farming and problems relating to pesticide use has led to a massive resurgence in interest in compost extracts and teas. A considerable amount of work has been carried out to develop improved methods for preparation and use of compost extracts and teas. Most of this work has been done in the United States and much of it by commercial companies rather than federal research institutes.