Evaluation of Selected Biological and Chemical Treatments against Soil-Borne Diseases of Ginger in High Tunnel Production

With its multifaceted health benefits, ginger is one of the commonly consumed dietary condiments with continued demand worldwide leading to more importation into countries such as U.S. The rhizome ginger, seed-piece but also edible portion, highly vulnerable pathogen infections causing and soil-borne diseases (SSDs). Laboratory high tunnel (HT) studies were conducted between 2018 2020 evaluate effect soil transplant drenches selected biocontrol agents (BCAs) chemicals. In vitro dual-culture tests revealed that Trichoderma harzianum strain T-22 (Th-22) grew significantly faster than Fusarium oxysporum f.sp. zingiberi (Foz), fungus yellows rot in ginger. Th-22 three times Foz within 3 days engulfed 7 when incubated at 30 °C. bioproducts (RootShield® Plus, LifeGard®), an insecticide/nematicide (Vydate®) disinfectant (10% Clorox) tested against any pre-existing pathogens a HT reduced severity yellowing compared non-treated control. Yield was higher for RootShield® Plus control trials. Spatially, declining growth increased incidence SSDs observed walked from door towards back HT. Phospho-lipid fatty acid analysis showed better microbial activity on soils received BCAs sampled pre-treatment.