"If you know your soil's potential for leaching and your pesticide's potential leaching, you are ready to determine the soil-pesticide interaction rating. You should know whether your soil has a high, intermediate, or low potential for leaching. You should also know whether your pesticide has a large, medium, small, or extra small potential for leaching. To see how these factors interact, refer to this chart (1)."
sustainability of existing food production systems. Evidence has accumulated showing that whereas the present capital- and technology-intensive farming systems have been extremely productive and competitive, they also bring a variety of economic, environmental and social problems (2) ." "Evidence shows that the very nature of the agricultural structure and prevailing policies have led to this environmental crisis by favoring large farm size, specialized production, crop monocultures and mechanization... The lack of rotations and diversification take away key self-regulating mechanisms, turning monocultures into highly vulnerable agroecosystems dependent on high chemical inputs... An excessive reliance on monoculture farming and agroindustrial inputs, such as capital-intensive technology, pesticides, and chemical fertilizers, has negatively impacted the environment and rural society (3)" "The need to subsidize monocultures requires increases in the use of pesticides and fertilizers, but the efficiency of use of applied inputs is decreasing and crop yields in most key crops are leveling off. In some places, yields are actually in decline. There are different opinions as to the underlying causes of this phenomenon. Some believe that yields are leveling off because the maximum yield potential of current varieties is being approached, and therefore genetic engineering must be applied to the task of redesigning crop. Agroecologists, on the other hand, believe that the leveling off is because of the steady erosion of the productive base of agriculture through unsustainable practices (4)."
Cleome Gynandra have gone unanswered. This weed was blamed for 2 years of student and staff illness at Waimea Canyon Middle School on the island of Kauai. During acute incident's students and staff were taken to the hospital. Coincidentally, it's been 2 years since pesticide spraying on bordering ag land leased by Syngenta ceased and there have been no incidents of illness "spikes". Attached are photos taken on 02-24-2010 of Field #809 covered in blooming Cleome Gynandra. No one was taken to the hospital. The field was plowed under on 02-26-2010. This plowing cycle has been occurring for the past 2 years covering the campus in pesticide lading dust(2). Cleome Gynandra is the only weed that grows in the field now . 
