For the fourth consecutive year, Certis USA, the leader in biopesticides, has donated $20,000 to the Citrus Research and Development Foundation, Inc. (CRDF) to help fund the non-profit’s research aimed at finding a cure for Huanglongbing (HLB; citrus greening). The company’s successful “Certis for Citrus” program utilizes sales from their top citrus products to annually support CRDF’s mission. The …