Wednesday, October 10th: 8:00 - 9:30 AM
Did you know that between 80 - 90% of plant disorders are the result of irrigation related issues rather than from plant diseases or insects? Even during the drought many landscape trees and shrubs are overwatered leading to a lack of oxygen in the root zone which can kill a plant. In other cases, overwatering leads to the infection of roots and crown by plant pathogens such as Phytophthora or Cytospora spp. Other non-pathogenic disorders (called abiotic disorders) are the result of too little water after transplanting, herbicide drift from neighboring sites, lack of light, lack of air circulation around mature plantings, or construction damage too close to plant roots. Janet Hartin will discuss how to identify and prevent these important issues during her talk.