PRE HARVEST GRAY MOLD CONTROL AND FUNGICIDE RESIDUES IN THE HARVESTED STRAWBERRIES
EL-NESHAWY, S., OKASHA, K., COOK, L. (2003). PRE HARVEST GRAY MOLD CONTROL AND FUNGICIDE RESIDUES IN THE HARVESTED STRAWBERRIES. EKB Journal Management System, 81(4), 1521-1534. doi: 10.21608/ejar.2003.287185
SANEYA M. EL-NESHAWY; KHALEFA A. OKASHA; LINEARD W. COOK. "PRE HARVEST GRAY MOLD CONTROL AND FUNGICIDE RESIDUES IN THE HARVESTED STRAWBERRIES". EKB Journal Management System, 81, 4, 2003, 1521-1534. doi: 10.21608/ejar.2003.287185
EL-NESHAWY, S., OKASHA, K., COOK, L. (2003). 'PRE HARVEST GRAY MOLD CONTROL AND FUNGICIDE RESIDUES IN THE HARVESTED STRAWBERRIES', EKB Journal Management System, 81(4), pp. 1521-1534. doi: 10.21608/ejar.2003.287185
EL-NESHAWY, S., OKASHA, K., COOK, L. PRE HARVEST GRAY MOLD CONTROL AND FUNGICIDE RESIDUES IN THE HARVESTED STRAWBERRIES. EKB Journal Management System, 2003; 81(4): 1521-1534. doi: 10.21608/ejar.2003.287185

PRE HARVEST GRAY MOLD CONTROL AND FUNGICIDE RESIDUES IN THE HARVESTED STRAWBERRIES

Egyptian Journal of Agricultural Research
Article 3, Volume 81, Issue 4, December 2003, Page 1521-1534  XML PDF (3.57 MB)
Document Type: Original Article
DOI: 10.21608/ejar.2003.287185
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Authors
SANEYA M. EL-NESHAWY1; KHALEFA A. OKASHA2; LINEARD W. COOK3
1Plant Pathology Research Institute, Agricultural Research Center, Giza, Egypt
2Faculty of Agriculture, Ain Shams University, Shobra EL-Khiema, Cairo, Egypt
3Biochemistry Department, NDSU, Fargo, ND. 58105. USA.
Abstract
Protective pre harvest spray of three fungicides i.e. Benlate [Methyl 1-(butyl carbamoyl)-2-benzimidazol carbamatej, Prochloraz [1- (N-propyl-N- (2-(2,4,6 -tri-chlorophenoxy) ethyl) carbamoyl) imidazole] and Vinchlozolin [3 - (3,5 Dichlorophenyl) 5-etheny1-5-methyl-2,4- oxazolidinedione] were applied to Strawberry (Fragaria chiloensis Duches­ne var ananassa Baily) (cv. Pajaro) at 0.5, 1, 2 g I -1 under either natural or artificial infection. The applied fungicides significantly reduced the lev­el of gray mold caused by Botrytis cinerea. Excellent control was ob­tained with Vinchlozolin, at the rate of 2.0 g I -' which developed 4.8% and 1.2% rot for two successive years compared with 28.5% and 16.2% in the check under artificial infection conditions. Gas chromatographic detection of Vinchlozolin in treated straw­berries revealed residues of 0.0354, 0.3871 and 0.0838 ppm after two days, one and two weeks, respectively, in strawberries treated with 2.0 g '1.
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