String Blossom Thinner Proves Effective Across Stages of Bloom Development (image) American Society for Horticultural Science Share Print E-Mail Caption String arrangement of molded hollow cords of mechanical string thinner when thinning peach trees. More strings are required for thinning apple trees. Credit Photo by M. Wherley Usage Restrictions None Share Print E-Mail Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.