Leaves were collected from pistachio trees (Pistachia vera L) from different cultivated field in Aegina. in August 2013, Dr. V. Kavvadias and Prof. A. Assimakopoulou visited many fields in Aegina, discussed with farmers and collected many leaves samples. From the samples collected, it was obvious that different causes result in different types of toxicity. AgroStrat thanks prof. Assimakopoulou for her contribution.