ROOT DIP TREATMENTS FOR CONTROLLING BLUEBERRY STEM BLIGHT CAUSED BY BOTRYOSPHAERIA-DOTHIDEA IN CONTAINER-GROWN NURSERY PLANTS

Dipping highbush blueberry roots into a benomyl-kaolin clay slurry at concentrations of 2,000-3,000-mu-g/ml resulted in protection against stem blight development caused by Botryosphaeria dothidea. Reduction in lesion development was greatest when kaolin clay was used as the slurry rather than Terra-sorb. Phytotoxicity was observed in plants treated with rates higher than 3,000-mu-g/ml.