Laboratory studies with fruit (see PowerPoint slide set no. 2). Wounds on harvested fruit treated with CC and CP and then inoculated exhibited 30% smaller lesions than those treated with CS or the control, which were similar. Infections following treatment with CC and CP exhibited delayed formation of acervuli relative to the control and CS, which were similar. When fruit were inoculated with varying concentrations of conidia, fruit treated with CC exhibited reduced incidence of infection after inoculations with 10³ conidia/ml. In all tests at 10⁴ and 10⁵ conidia/ml, the control and calcium salt treatments exhibited similar incidences of infection after inoculations of wounded fruit.

Field studies with fruit (see Power Point slide set no. 3). In three trials where fruit received 3 weekly dilute applications of calcium solutions, fruit treated with CC or CP and then inoculated with conidia of either C. gloeosporioides or C. acutatum exhibited lower incidences of infection when compared to control fruit and fruit treated with CS. On control fruit, most infections became visible between the first and second weeks after harvest (at 22 C), reaching 83% incidence in trial 1 and 100% incidence in trials two and three. In comparison, for C. acutatum, mean incidences of infection at 2 weeks postharvest for fruit treated with calcium salts were 46%, 18%, and 8%, respectively for fruit treated with CS, CC, and CP. All three salt treatments were significantly different from the control (P = 0.05), and CC and CP were similar to each other and different from CS (p = 0.05). For C. gloeosporioides, mean incidence of infection at two weeks postharvest in the control treatment was 85% compared to 31%, 8%, and 7% for CS, CC, and CP, respectively. All three salt treatments were significantly different from the control (P = 0.05), and CC and CP were similar to each other and different from CS (p = 0.05).