DEAR PETE: Thank you very much for your letter of August 5 inquiring about the lack of "stoop" labor as it involves such products as beets. tomatoes. potatoes. etc. Upon receipt of your letter. I directed inquiries to our personnel who work in this area. Needless to say. they expressed great concern regarding the migrant labor situation. They reported that produce had rotted in the fields due to lack of labor and that in some instances inexperienced help. both in the fields and grading sheds. contributed to the damage. Of course. as you know. time is a very important element In harvesting such crops and the product is lost if labor is not available.