Several people asked me to share the responses to my query as to where to get BASTA (a.k.a. PPT) so I am posting the source: Crescent Chemical Co. 1324 Motor Parkway, Hauppauge, NY 11788 phone (516) 348-0333 FAX (516) 348-0913 They sell glufosinate ammonium (active ingredient of BASTA) at $90/250mg D. Belostotsky SUNY Albany