BIOCHEMICAL ASPECTS OF FLUFENOXURON AND ABAMECTIN ON THE 4th INSTAR LARVAE OF COTTON LEAFWORM Spodoptera /ittota/is (BOISO.) | ||||
| Journal of Plant Protection and Pathology | ||||
| Article 14, Volume 30, Issue 12, December 2005, Page 8223-8231 PDF (470.21 K) | ||||
| Document Type: Original Article | ||||
| DOI: 10.21608/jppp.2005.239493 | ||||
 View on SCiNiTO | ||||
| Author | ||||
| Mohsen M. Ali | ||||
| Plant Protection Res. Inst., Agric. Research Center, Dokki-Giza, Egypt | ||||
| Abstract | ||||
| Biochemical results revealed that both flufenoxuron and abamectin caused, in general, reduction in total protein content of the treated larvae. The reduction percent than check in protein persisted for 120 hrs without signs of recovery. The results indicated that the highest percentage of reduction in protein level was -44.46 % at 120 hrs for abamectin, and -42.17 % for flufenoxuron at 96 hrs, while the lowest percentages were -27.1 % and -39.13 % at 48 hrs for the two tested compounds, respectively. The results showed that there was significant differences between the effects of the two tested compounds and the check at all time intervals. Both compounds resulted in remarkable percentages of reduction in acetylcholinesterase activity which was more pronounced for flufenoxuron than for abamectin. However, the maximum reouction occurred was -39.81 % at 48 hrs time interval for flufenoxuron, while the minimum was 15.55 % and occurred at 72 hrs for abamectin. The results revealed the occurrence of gradual increase in GOT activity by the progression of time in normal larvae. On the other hand, flufenoxuron exhioited similar trend of increase in GOT activity but of higher magnitude. In contrast, abamectin exhibited reduction in GOT, reached its maximum (45.63 %) at 120 hrs after treatment. The results showed significant reduction in GPT activity following treatment by abamectin and flufenoxuron after 48 and 72 hrs of post-treatment. Whereas at 96 and 120 hrs time intervals, the enzyme activity significantly increased relative to check at the two time intervals. | ||||
|
Statistics Article View: 39 PDF Download: 155 |
||||
