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Salem, R., Hendawy, M. (2016). EFFICIENCY OF CERTAIN PESTICIDES ON SOME BIOLOGICAL ASPECTS OF SPODOPTERA LITTORALIS (BIOSD) UNDER FILED AND LABORATORY CONDITIONS. Menoufia Journal of Plant Protection, 1(3), 163-171. doi: 10.21608/mjapam.2016.176673
Rehab E. M. E. Salem; M. A. Hendawy. "EFFICIENCY OF CERTAIN PESTICIDES ON SOME BIOLOGICAL ASPECTS OF SPODOPTERA LITTORALIS (BIOSD) UNDER FILED AND LABORATORY CONDITIONS". Menoufia Journal of Plant Protection, 1, 3, 2016, 163-171. doi: 10.21608/mjapam.2016.176673
Salem, R., Hendawy, M. (2016). 'EFFICIENCY OF CERTAIN PESTICIDES ON SOME BIOLOGICAL ASPECTS OF SPODOPTERA LITTORALIS (BIOSD) UNDER FILED AND LABORATORY CONDITIONS', Menoufia Journal of Plant Protection, 1(3), pp. 163-171. doi: 10.21608/mjapam.2016.176673
Salem, R., Hendawy, M. EFFICIENCY OF CERTAIN PESTICIDES ON SOME BIOLOGICAL ASPECTS OF SPODOPTERA LITTORALIS (BIOSD) UNDER FILED AND LABORATORY CONDITIONS. Menoufia Journal of Plant Protection, 2016; 1(3): 163-171. doi: 10.21608/mjapam.2016.176673

EFFICIENCY OF CERTAIN PESTICIDES ON SOME BIOLOGICAL ASPECTS OF SPODOPTERA LITTORALIS (BIOSD) UNDER FILED AND LABORATORY CONDITIONS

Article 1, Volume 1, Issue 3, November and December 2016, Page 163-171  XML PDF (568.03 K)
Document Type: Original Article
DOI: 10.21608/mjapam.2016.176673
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Authors
Rehab E. M. E. Salem; M. A. Hendawy
Plant Protection Dept., Faculty of Agric., Zagazig Univ., Egypt.
Abstract
Efficiency of four pesticides belonging to different groups of chemicals ,namely : Chlorosan, Agrinate , Daizinone and Nasractine  on some biological  aspects of 2nd and 4th instar larvae of the cotton leaf worm  S. littoralis  (Boisd) under field and laboratory conditions were investigated . The LC50 and LC 90 values were calculated after 24 , 48 , and 72h. Post – treatment . The obtained results showed that a wide range of toxicity of the tested pesticides , however the insecticide Chlorosan proved itself to be the highest toxic compound to the treated  larvae as LC50 and LC90 values after 72h. post – treatment recording 0.01 , 0.83 ppm and 0.13 , 5.23 ppm for 2nd and 4th instar larvae , respectively . On the other hand , the compound Diazinon exhibited the lowest toxicity to the tested  larvae at the both levels of toxicity (LC50 and LC90 values after 72h. were 16.86 ,69.31 ppm and 39.59 , 186.67 ppm) for 2nd and 4th instar larvae , respectively . The other tested pesticides occupied an intermediate position. The tested pesticides increased the larval , pupal duration and malformed pupae and decreased the percentage of pupation , adult emergence compared with control.                                                                            
Keywords
Efficiency; pesticides; biological aspects; Spodoptera littoralis
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