Doğu Akdeniz Bölgesi’nde Altıntop bahçelerinde Turunçgil unlubiti [(Planoccus citri) (Risso) (Hemiptera: Pseudococcidae)]’nin populasyon değişimi

Abstract

This study has been conducted for monitoring the population of citrus mealybugs in Eastern Mediterranean Region of Turkey between 2013-2015. Four grapefruit orchards from Erdemli (Mersin), Sarıçam, Kozan and Yüreğir (Adana) were used for this study. 10 trees selected each determined orchards and main stem, branch and fruits of these trees were controlled and number of mealybug were counted every 15 days between November-December, and once a week between April- October. Citrus mealybug population on fruit reached to fırst peak point on June 19, second peak point on July 20, third peak point on August 21, and last peak point on September 19 in Sarıçam. The number of mealybug individuals was too low in winter, the low population has lasted until February 2014 in the second year of this study. Similar dates were determined with the previous year but the population was lower than the first year. Mealybug population reached to peak point on May 30 with 5.9 adults per tree, second peak point on July 10 with 7.3 adults per tree, third peak point on August 7 with 19 adult per tree, and last peak point on September 18 with 13 adults per tree in Erdemli in 2013. Second year’s population was similar to the first year but it was lower than the first year. Mealybug population on fruit reached to first peak point on June 26 with 15 individualper tree, second peak point on July 31, third peak point on August 23 (9 individual), and last peak point on September 25 with 18 individual in Kozan in 2013. Mealybugs have not been determined through 2 years in Yüreğir. Consequently, Citrus mealybugs may complete the fourth generation depending on climatic factors, also may overwinter in different stages of the fifth generation during this study were determined .