SOME STUDIES ON THE SUBTERRANEAN TERMITE AMITERM.! DESERTORUMDESN. (ISOP. TERMITIDAE) IN NORTH SINAI GOVERNORATE

Document Type : Original Article

Authors

Plant Protection Research Institute, Agricultural Research Center, Dokki, Giza, Egypt

Abstract

Ten tree species were infested with subterranean termite, Amitenns desertorum in North Sinai governorate, these were eucalyptus, sunt, tamarisk, acacia, casuarina, mulberry, mango, citrus, olive and palm trees. Relative susceptibility of infested trees showed that the palm had highest percentage of infestation (37.5 %), while citrus and olive recorded the minimum percentage (3.13 %). Study of host preference revealed that palm fronds attracted the largest number of termite individuals (106 individuals) and gave the highest percentage of lost wood (65 %), while eucalyptus cuttings attracted the minimum number (22 individuals), whereas the least percentage of lost wood occurred in casuarina cuttings (23 %). Percentages of infestation increased with the increase of the exposed part of fronds above ground, it recorded 10-90 % for cuttings above ground with 20-80 cm height The same trend was recorded with the lost wood. No infestation appeared on fresh fronds which fully buried under ground. The oblique fronds showed 70 % infestation and gave about 0-74 % of lost wood. The results indicated also that the optimum distance between the remedial traps was 50 cm which prevent attack of termites or gave 100% mortality. Also, experiment determined a new effective method, using plastic pipes, in control of subterranean termites. This method gave 82.5, 97.5 and 100 % protective when 8asuclin insecticide used at 1, 2, 3 % concentration, respectively.

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