Field studies on the foraging populations and castecomposition of sand subterranean termite psammotermes hybostoma (desneux) in el-konooz region, qena governorate

The obtained data from the used poly vinyl chloride is a sermo plastic polymer (p.v.c.) traps which contained the corrugated card board represented the food source of subterranean termite, revealed that, the foraging population mostly differs according to season of year. where, the minimum number of foraging population occurred in january.(1676) individuals. while, the maximum one were represented two peaks (9644 and 12357) individuals during april and august. the foraging population was decreased thought out may and june then decline in july then decreased gradually started from september to reach december. in general, 70913 individuals were collected from 280 m^2 all over the year with an average of 21.1 individuals/m^2 or 88641.24 individuals as estimated number / feddan. the general average of caste composition were 77.62, 13.96, 4.50 and 3.91% for workers, nymphs, soldiers and winged adults, respectively. the total number of workers and soldiers were 58238 individuals. the total number of soldiers were 3193 represented 57.82% of all individuals. these numbers were collected from 235 p.v.c. traps represented 247.82 individuals per trap.