الفهرس 
introductionOnly 14 pages are availabe for public view
 |  | from | 146 |  |  |
| | | from | 146 | | |
Abstract
ABSTRACT
Egypt is the largest producer of citrus crops and also, conside red the largest exporter of orange in the world. The phytophagous mites and scale insects are the most important obstacles serious to citrus. The presented of work aimed to study the survey, incidence and population dynamics of mite and insect species associated with leaves and fruits of two citrus varieties at Tukh and Qalub district during two successive years. The obtained results indicated that, Twelve insect pest species from eight families were recorded on two citrus varieties. In addition, the survey studies recorded 29 species of mites were divided according their feeding behavior into three groups, Phytophagous mites, Predacious insects & mites Miscellaneous mites. The population density of predacious mites was correlated positively with the population density of Panonychus citri (McGregor); and chrysomphalus aonidum (L.); at Tukh and Qalub districts during two successive years on navel and balady orange. The popu