Phenology of the fly and citrus hosts in Palestine. Graph No. 1 includes a curve representing the fluctuations in the population of the Mediterranean fruit fly during the citrus fruit season along the coastal plain in Palestine. The curve is based upon trappings during 1937-1940 in 20 densel traps hanging on citrus trees in the grove surrounding the Experiment Station grounds at Rehovoth. Other tropical and sub-tropical fruits are available in the Station grounds, offering oviposition opportunities all the year round, thus acting as ""bridge hosts"" which carryover the fly from season to season.
Phenology of the fly and citrus hosts in Palestine. Graph No. 1 includes a curve representing the fluctuations in the population of the Mediterranean fruit fly during the citrus fruit season along the coastal plain in Palestine. The curve is based upon trappings during 1937-1940 in 20 densel traps hanging on citrus trees in the grove surrounding the Experiment Station grounds at Rehovoth. Other tropical and sub-tropical fruits are available in the Station grounds, offering oviposition opportunities all the year round, thus acting as ""bridge hosts"" which carryover the fly from season to season.