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In Malayer city (West Iran), grape (Vitis vinifera L.) is the most significant farming crop and the space under grape cultivation is more than 10000 ha. Among all the fruit crops, the grape has emerged as the most successful commercial crop in the recent years (1). Vine cicada, Psalmocharias alhageos (Hem., Cicadidae), is one of the most important pests of vineyards in Malayer. Main harm of P. alhageos is caused by long feeding time of nymphs on the vine roots and laying eggs of females under the skin of the shoots (2,3). Imidacloprid 1-(6-chloro-3-pyridylmethyl)-Nnitroimidazolidin-2-ylideneamine (fig.1), is a systemic neonicotinoid insecticide with soil, seed and foliar uses for the mastery of sucking pests, because the active ingredient is stored in plant tissues for 2 or 3 months (4–6,7). It is widely used in Malayer vineyards for the control of Psalmocharias alhageos (2) A-R-T-I-C-L-EI-N-F-O A-B-S-T-R-A-C-T Article Notes: Received: Jun 30, 2018 Received in revised form: Agu 20, 2018 Accepted: Sep 19, 2018 Available Online: Oct 7, 2018 Background & Aims of the Study: Grape, a crucial agriculture crop of Malayer, is affected by Vine cicada, Psalmocharias alhageos. Imidacloprid, a neonicotinoid insecticide, provides good management of this insect. The aim of the current study was to residue persistence of imidacloprid on grapes, to estimate its residue deposit, the half-life of degradation and safe pre-harvest consumption time. Materials & Methods: Residues of imidacloprid were estimated in grape following two spraying of recommended (80.0 g a.i. ha -1 ) and doubles the application rate (160.0 g a.i. ha -

Food Safety Evaluation of Imidacloprid Residues in Grape Berries at a Different Dose of Spraying