EFFICIENCY OF CERTAIN PESTICIDES ON SOME BIOLOGICAL ASPECTS OF SPODOPTERA LITTORALIS (BIOSD) UNDER FILED AND LABORATORY CONDITIONS | ||||
| Menoufia Journal of Plant Protection | ||||
| Article 1, Volume 1, Issue 3, November and December 2016, Page 163-171 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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