MORPHOLOGICAL AND BIOECOLOGICAL STUDY AND PARASITISM OF TWO OLIVE SCALES POLINIA POLLINI (COSTA) AND LEUCASPIS RICCAE TARG IN GREECE AND ALBANIA
Abstract
A RESEARCH WORK WAS CARRIED OUT ON DISTRIBUTION, MORPHOLOGY, BIOLOGY OF THE SCALES POLLINIA POLLINI (COSTA) (HOM.: ASTEROLECANIIDAE AND LEUCASPIS RICCAE TARG.(HOW.: DIASPIDIDAE) WHICH ATTACK THE OLIVE TREES, IN GREECE AND ALBANY. THUS THE DATA WHICH ACCUMULATED SHOWED THAT A) P. POLLINI IS WIDELY DISTRIBUTED IN MEDITERRANEAN COUNTRIES IN GREECE, THE SCALE IS APPEARED IN FOCUS IN THE MOST WARM PLACES AND WEAK OLIVE TREES WHERE IT CAUSES SEVERE DAMAGES. IN ALBANY THE S INTESTATION IS LOW AND THE DAMAGE NEGLECTED. B) THE SCALE L. RICCAE IS NOT A SEVERE PEST ON OLIVE TREES IN BOTH COUNTRIES, ALTHOUGH EXISTS ALMOST IN ALL OLIVE GROVES. THE NATURAL ENEMIES KEEP THE SCALE POPULATION IN LOW POPULATION LEVEL. THE OBTAINED DATA ON BIOLOGY AND LIFE CYCLE OF THESE SCALES COULD INCORPORATE ON OLIVE PESTS AND TO GIVE ECONOMIC PROFITS AND LESS POLUTION OF THE ENVIRONMENT.
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