The Journal "Agriculture and Forestry"
Časopis "Poljoprivreda i šumarstvo"
- Since 1955 -
Year 2023, Volume 69 Issue 2 (30.06.2023)
| Year : | 2023 |
| Volume : | 69 |
| Issue : | 2 (30.06.2023) |
| Authors : | Hassan A. GAD, Hamdy A. MOHAMED, Hassan K. ORABY |
| Title : | EFFECTIVENESS OF SPINOSAD AS A LARVICIDAL AND PUPACIDAL AGAINST CULEX SPECIES IN BENI SUEF GOVERNORATE, EGYPT |
| Abstract : | The present study was conducted to evaluate the larvicidal and pupacidal efficacy of Spinosad on Culex species in their breeding habitats in village of Saft, Beni Suef Governorate, Egypt. The results showed that Spinosad caused a pronounced toxicity against C. pipiens. The total mortality of second and fourth larval instars was achieved by lower concentrations of Spinosad. While the highest pupal morality of C. pipiens was obtained by concentration of 5000 ppm (93.3%), after 168 h under laboratory conditions. Spinosad was applied with concentration of 5000 ppm at semi-field experiments and resulted total mortality of larval instars of C. pipiens, C. theileri and C. perexiguus after 24 and 48 h of exposure. The same concentration induced strong pupal mortalities of C. pipiens, C. theileri and C. perexiguus (90, 60 and 70%), respectively after 48 h. The field experiments, Spinosad (5000 ppm) induced total mortality of larval instars of Culex species and the pupal mortality was higher in breeding habitat, cement irrigation tank (77.8 %) and decreased to 36.4% in agriculture canal. The present study concluded that Spinosad is a promising larvicide that can be used in treatment of mosquito breeding habitat sites with low efficacy on pupae at some habitat sites such as agricultural canals. |
| For citation : | Gad, H.A., Mohamed, H.A., Oraby, H. K. (2023). Effectiveness of Spinosad as a larvicidal and pupacidal against Culex species in Beni Suef Governorate, Egypt. Agriculture and Forestry, 69 (2): 227-235. doi:10.17707/AgricultForest.69.2.18 |
| Keywords : | Culex species; Cement irrigation tank; Breeding habitats; Mosquitos, Agricultural canal |
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