TOXICITY OF CAPPARIS, CAPPARIS SPINOSA SEED EXTRACTS TO THE LESSER GRAIN BORER, RHIZOPERTHA DOMINICA, F. (BOSTRYCHIDAE: COLEOPTERA) LABORATORY EVALUATION | ||||
| Egyptian Journal of Agricultural Research | ||||
| Article 11, Volume 79, Issue 2, July 2001, Page 481-488 PDF (2.66 MB) | ||||
| Document Type: Original Article | ||||
| DOI: 10.21608/ejar.2001.318826 | ||||
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| Author | ||||
| SAWSAN A. SHEMAIS | ||||
| Plant Protection Research institute, Agriculture research Centre, Dokki, Giza, Egypt | ||||
| Abstract | ||||
| The toxicity of 3 different extracts from Capparis spinosa seeds was tested against the lesser grain borer, Rhizopertha dominica, F. adults . The petroleum ether extract was applied to wheat grains at 7, 9, 10, 11, 13 and 14 ml/kg (as surface treatment) , chloroform extract was added at 13, 14, 15, 16 and 18 ml/kg , while acetone extract was used at 11, 12, 13, 14 and 15 ml/kg. Results indicated that all extracts at the high doses gave complete mortality (100%) after 7 days of exposure. LC95 level continued to give 90% kill up to 4 weeks for acetone extract, while continued up to 5 and 6 weeks for petroleum ether and chloroform extracts, repectively. The LC59 values of the three extracts caused high reduction in the number of F1 progeny, no offspring was produced with LC95 level. The percentage of germination of the treated wheat grains variety Sakha 69 were highly affected by the three extracts of Capparis spinosa seeds . | ||||
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