Enviro-Serv, Inc. (EVSV) Announces Successful Proof of Concept Wisconsin Hemp Farming Initiative and Has Obtained Wisconsin Dept. of Agriculture Fit for Commerce Certificates for All Four Hemp Strains TAMPA, FL, Nov. 20, 2019 (GLOBE NEWSWIRE) -- via NEWMEDIAWIRE – Enviro-Serv, Inc. (USOTC: EVSV) (“EVSV”) is pleased and extremely excited to announce that of late last week and commencing in May...