Field and greenhouse trials in the San Joaquin Valley of California have been designed to evaluate a range of seed-applied chemical treatments and surface soil=applied chemical treatments under Fusarium race 4 pressure in fields confirmed infested with Race 4 Fusarium oxysporum vas infectum.  Seed treatment trials have been conducted in two locations under naturally-infested field soil conditions, and in four separate sets of trials in greenhouse potting soil mixes.  Seed treatment evaluations have been done in: (1) infested field soil but under greenhouse conditions; (2) 1:3 field soil to potting mix ratios in the greenhouse, and (3) containers where seed was sprayed with an inoculum mix and directly planted in otherwise non-infested potting soil.  Chemical treatments of the surface 15 to 45 cm of soil depth have been conducted in field and greenhouse conditions in containers (greenhouse) or micro-plots approximately 1 by 1.5 m in size (field sites).  In all cases, plants were evaluated to determine seedling emergence and survival percentages, foliar symptom and vascular root symptoms at 3-4 weeks after treatment and again 6-8 weeks after treatment, plus some measures of rate of leaf area and stem growth (node counts, height).  Plant responses under these treatments will be the subject of data presented.