Seven chemicals are presently being tested in field trials and include three single and two combination formulations (Table 1). Field trial one and two are currently set up at South Coast Research and Extension Center (SCREC) in Irvine. Field trial one was set up 03/08/11 and field trial two was set up six weeks later, on 04/18/11. Both trials will be up for three months with trial one taken down starting 05/30/11 and trial two taken down starting 07/11/11. Treated branches Akwill then be pruned out and taken back to the lab where lesions will be measured and the data analyzed.