Resistance to Confidor (imidacloprid) in Two Sap-Sucking Insects and Cross-Resistance to Several Insecticides | ||||
| Egyptian Academic Journal of Biological Sciences, F. Toxicology & Pest Control | ||||
| Article 1, Volume 8, Issue 1, June 2016, Page 1-5 PDF (321.63 K) | ||||
| Document Type: Original Article | ||||
| DOI: 10.21608/eajbsf.2016.17128 | ||||
 View on SCiNiTO | ||||
| Authors | ||||
| Azza I. Dawood; Sayeda F. Farghaly | ||||
| Central Agriculture Pesticides Laboratory, Research Center Agriculture , Dokki, Giza, Egypt. | ||||
| Abstract | ||||
| Laboratory selection pressure was implemented to the adults of cowpea Aphis craccivora ( Koche ) as well as adults of whitefly Bemisia tabaci (Gennadius) collected from Behira field-strain to build up resistance toward confidor (imidacloprid) insecticide. The level of selection pressure was carried out using LC25 and LC50 values of tested compound . After 15 generations, the level of resistance to confidor (imidacloprid) was 73.78 folds for B. tabaci and 78.40 fold for A. craccivora. The two strains showed cross-resistance to primiphos-methyl (actilic) (9.64 and 7.04 fold) for B-tabaci and A. craccivora respectively, while these strains showed high resistance to lambda-cyhalothrin (karate) and diafenthiuron ( polo) with 73.90 and 33.73 fold for A. craccivora respectively and it was 50.41 and 19.07 fold for B. tabaci respectively. | ||||
| Keywords | ||||
| Aphis craccivora; Bemisia tabaci; Cross-resistance; Imidacloprid | ||||
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