Controlling of cotton leafworm using some manufacturing Botanical formulations | ||||
| Egyptian Academic Journal of Biological Sciences, F. Toxicology & Pest Control | ||||
| Article 2, Volume 5, Issue 2, December 2013, Page 7-13 PDF (181.27 K) | ||||
| Document Type: Original Article | ||||
| DOI: 10.21608/eajbsf.2013.17264 | ||||
 View on SCiNiTO | ||||
| Authors | ||||
| Amal A. Abd-Allah1; Sondos A. Mohamed1; Ahmed G. El-Sisi2 | ||||
| 1Plant Protection Research Institute, ARC, Dokki, Giza | ||||
| 2Central Agricultural Pesticides Laboratory, ARC, Dokki, Giza | ||||
| Abstract | ||||
| Three synthetic botanical materials which are Camphour, Menthol and Thymol were prepared as suitable fromulations: Camphour as 25% emulsifable concentrate, both Menthol and Thymol as 20% concentrated emulion. Prepared formulations sprayed on tomato plants at concentrations 1.0, 1.5 and 2.0% (V. /V.). Direct effect on present 2nd and 4th instar larvae of cotton leafworm was determined by takeing tomato leaves samples directly after spraying and introducing these leaves samples to larvae in laboratory, for studying latent effect,treated leaves samples were taken each two days and introduced to the rest alive larvae ,mortality counts was recorded each two days,then mortality percentages were calculated.Residual effect was determined by the same method mentioned before,by taking leaves samples after 7 days of treatment and introduchngto larvae in laboratory, other samples taken each two days and introduced to the rest alive larvae. Antifeedent effect also was determined by determination the consumed amount of treated tomato leaves and untreated, then reduction percentage in food consumed was calculated. Results obtained indicated that the tested matrials at all tested concentrations showed hightoxic effect directly against the present larvae or residual after7days against new infestation if occurred .Also, the tested materials showed antifeedent effect against 4th instar larvae to be more than 50% at 1% concentration. For economic consideration,concentration 1% could be recommended for controlling larvae of cotton leafworm infested tomato. | ||||
| Keywords | ||||
| Cotton leafworm; Botanical formulations – control | ||||
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