EFFECTS OF INSECT GROWTH REGULATERS ALSYSTIN DIMILIN AND NEMSIS ON BEHAVIOR AND MORTALITY OF TERMITE WORKERS Microcerotermes diversus (Silv.) IN INCUBATOR CONDITIONS | ||
| IRAQ JOURNAL OF AGRICULTURE | ||
| Article 1, Volume 19, Issue 2, April 2014, Pages 0-0 | ||
| Authors | ||
| R.F. Al-Jassany; M.D. Al-Marsoomy | ||
| Abstract | ||
| The study was conducted to evaluate the effects of IGRs Alsystin (Triflumuron) Dimilin (Diflubenzuron) and Nemsis (Chlorfluazuron) on the behavior and mortality of termites worker M. diversus (Silv) under incubator conditions at a temperature of 30 ± 5 C and R. H of 80 ± 10% during 2011 season. The results of the study proved that the termites worker showed behavior to avoid the treated dishes in the first day, but on the second day termites worker began gradually to attract to treated dishes with Alsystin and Nemsis for all concentrations the ratios of attraction increased gradually over time that reached 100% on the tenth day. As for Dimilin the workers has shown away and full avoidance for treated dishes then a slight and slow attraction happened that gradually increased over time until reached 100% after 15, 16, 20 days for the concentrations 250, 500, 1000 ppm, respectively, while the highest attraction ratio for concentration 2000 ppm was 77% after 19 days. For mortality ratios of termite workers, the results showed an interaction between the attraction and an increased of concentrations of IGRs on the occurring the mortality , Alsystin has achieved mortality 100% after 7, 4, 3, 2 week for concentrations of 250, 500, 1000, 2000 ppm, respectively when Nemsis has achieved 100% mortality after 8, 8, 5 weeks of the concentrations of 200, 250, 300 ppm, respectively, while mortality ratios caused by Dimilin delayed with increasing of the concentration the mortality ratios reached 100% after 7, 7, 9, 11 a week to concentrations 250, 500, 1000, 2000 ppm, respectively. It is clear from these results that the IGRs Alsystin and Nemsis did not cause repellency termites workers and the effectiveness the IGRs by increasing of the concentration while termite worker has shown behavior toward away and avoidance for Dimilin at the beginning of treatment and the mortality rate was delayed when concentration increase over 500 ppm. | ||
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