I= EFFECT OF ALLELOCHEMICALS AGAINST THIRD INSTAR LARVAE OF MUSCA DOMESTICS L. (MALIR STRAIN)
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Title of Thesis
EFFECT OF ALLELOCHEMICALS AGAINST THIRD INSTAR LARVAE OF MUSCA DOMESTICS L. (MALIR STRAIN)

Author(s)
Seema Nizam
Institute/University/Department Details
Department of Zoology/ University of Karachi
Session
1991
Subject
Zoology
Number of Pages
369
Keywords (Extracted from title, table of contents and abstract of thesis)
allelochemicals, musca domestics l. (malir strain), malathion, of n f b, nimocinol, dimilin, hplc

Abstract
Against third instar larvae of Musca domestica L. (Malir strain) the LC50s of malathion, dimilin, NfB and nimocinol were 0.33% , 0.14% 0.15% and 1.06% respectively. Mortality ranges (α = 0.05) were directly proportional to the concentration of the compounds. The LC50s of neem extracts are higher than that of an insect growth regulator (IGR) dimilin. The lower LC50 of N f B in comparison to that of malathion, Strengthens the presence of resistance in M. domestica larvae against malathion, as reported by Akhtar (1989). All the compounds produced morphological abnormalities at LC50 doses.

The total protein content, cholinesterase and total esterase were activated by malathion, While inhibited by other compounds. The activities of acid and alkaline phosphatases, glutamate oxalo acetate transaminase, glutamate pyravate transaminase and lactate dehydrogenase were inhibited by all the four compounds.

The inhibition of protein is comparatively less by malathion than other compounds by HPLC. The percentage recovery of N f B, nimocinol, dimilin and malathion were 60%, 36% 20, and 10% respectively form the treated insects, through HPLC. Comparatively lower recovery of malathion confirms earlier report of the resistance to the chemical(Akhtar, 1989). Recovery of malathion by GLC(only 10%) further supports the phenomenon.

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S. No. Chapter Title of the Chapters Page Size (KB)
1 0 Contents
489.43 KB
2 1 Introduction 1
42.19 KB
3 2 Review Of Literature 6
883.73 KB
4 3 Materials And Methods 88
291.1 KB
5 4 Results 136
1562.52 KB
6 5 Discussion 284
702.93 KB
  5.1 Summary 320
  5.2 Conclusion 323
  5.3 References 325