Direct and Indirect Impact of Artemisia judaica Extract on Euseius scutalis | ||||
| Journal of Plant Protection and Pathology | ||||
| Article 8, Volume 11, Issue 1, January 2020, Page 37-40 PDF (381.46 K) | ||||
| Document Type: Original Article | ||||
| DOI: 10.21608/jppp.2020.79161 | ||||
 View on SCiNiTO | ||||
| Authors | ||||
M. A. Nawar  1; Iman I. Imam2
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| 1Animal Pest Unit, Plant Protection Department, Desert Research Center. | ||||
| 2Economic Entomology Unit, Plant Protection Department, Desert Research Center. | ||||
| Abstract | ||||
| The potential of extract of Artemisia Judaica L. against the predator Euseius scutalis (Athias-Henriot) and two kinds of prey that fed on them, first-instar nymphs of whitefly and second instar larvae of onion thrips, The results showed that, the effect of extract on B. tabaci nymphs recorded great decline in the rate of mortality to 26.8% compared to 81.6% respectively; The same results on T. tabaci larvae were increased from 23.95% to 77% respectively, by increasing the applied concentration from 125 to 2000 ppm., while when newly emerged E. scutalis adult treated with the same concentration of extract increased total percent mortality such increase was concentration dependent. Indirect exposure technique of is more effective than the direct exposure technique. Therefore, when using the plant extract and the predator in one control program is recommended to spray the extract first and then release the predator about 48 hours later. | ||||
| Keywords | ||||
| plant extract; Artemisia judaica; Euseius scutalis; Thrips tabaci; Bemisia tabaci; IPM | ||||
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