Effect of treatments on symptoms of crown rot in strawberry plants 14 days after treatment and 13 days after inoculation with Colletotrichum gloeosporioides. (A) Non-treated control plants, (B) Plants subjected to heat shock treatment at 50 C for 20 s, (C) Plants treated with BIT (2-benzisothiazol-3(2H)-one,1,1-dioxide).