01426cab a2200193Ia 4500001000800000003000600008008004100014040000800055100002300063240019900086245015200285300001500437504002500452520053300477650003101010650002001041773009101061856008001152u198418SIRSI120228s2005    ua     ss b         eng d  aEAL1 aKelany, Ibrahim M.10aEgyptian journal of agricultural research, 2005 v. 83 (3) , Special issueh[electronic resource]:bThe Third International Conference of Plant Protection Research Institute: 26-29 November 2005.10aStudy on some plant extracts and their formulations as save, alternative and bio- control measures for certain insect pestsh[electronic resource].  ap.949-960.  aIncludes references.  aThe conventional pesticides caused for the time being many problems, some of which the appearance of highly resistant strains of numerous pests, deleterious effects on the environment. At the same time such pesticides are expensive to export for developing poor countries with limited foreign currency. Therefore, the search for bio-active substances which have satisfactory properties concerning their effects on the target pests, not expensive to produce and also environmental safety is nowadays very urgent and not later on. 0aPestsxBiological control. 0aPlant extracts.0 tEgyptian Journal of Agricultural Research. g2005.v.83(3),SIx1110-63367nnaswu15858540uhttp://nile.enal.sci.eg/EALE/2005/EJAR/8305/3si/949.pdfzFull Text Article.