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EL-SAFTY, N., MORSY, N., GHALLAB, F. (2000). THE INFLUENCE OF CERTAIN INSECTICIDES ON THE EFFICACY OF SOME FUNGICIDES AGAINST BLACK ROT DISEASE ON COTTON. Egyptian Journal of Agricultural Research, 78(3), 1015-1023. doi: 10.21608/ejar.2000.322635
NORELDIN A. EL-SAFTY; NAHED M. MORSY; FATMA M. GHALLAB. "THE INFLUENCE OF CERTAIN INSECTICIDES ON THE EFFICACY OF SOME FUNGICIDES AGAINST BLACK ROT DISEASE ON COTTON". Egyptian Journal of Agricultural Research, 78, 3, 2000, 1015-1023. doi: 10.21608/ejar.2000.322635
EL-SAFTY, N., MORSY, N., GHALLAB, F. (2000). 'THE INFLUENCE OF CERTAIN INSECTICIDES ON THE EFFICACY OF SOME FUNGICIDES AGAINST BLACK ROT DISEASE ON COTTON', Egyptian Journal of Agricultural Research, 78(3), pp. 1015-1023. doi: 10.21608/ejar.2000.322635
EL-SAFTY, N., MORSY, N., GHALLAB, F. THE INFLUENCE OF CERTAIN INSECTICIDES ON THE EFFICACY OF SOME FUNGICIDES AGAINST BLACK ROT DISEASE ON COTTON. Egyptian Journal of Agricultural Research, 2000; 78(3): 1015-1023. doi: 10.21608/ejar.2000.322635

THE INFLUENCE OF CERTAIN INSECTICIDES ON THE EFFICACY OF SOME FUNGICIDES AGAINST BLACK ROT DISEASE ON COTTON

Article 3, Volume 78, Issue 3, September 2000, Page 1015-1023  XML PDF (2.46 MB)
Document Type: Original Article
DOI: 10.21608/ejar.2000.322635
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Authors
NORELDIN A. EL-SAFTY; NAHED M. MORSY; FATMA M. GHALLAB
Department of Fungicides, Bactericides and Nematicides, Central Agricultural Pesticides Laboratory, Agricultural Research Centre, Dokki, Giza, Egypt
Abstract
Alternaria spp., Fuser/um spp. and Helminthospodum spp. were found to be the essential fungi causing black rot on cotton plant. Under laboratory conditions, it had been found that Alternaria spp. had high tolerance to fungicides namely propineb, cuproxate, mancozeb, metalax­yl-mancozeb and s-harts more than the other two fungi. Alternaria spp., was chosen as an experimental fungus. The effects of metalaxyl­mancozeb and propineb on the fungus were the best, followed by man­cozeb and s-haris, while cuproxate failed to inhihbite the spore germina­tion at the field recommended rate (FRR). Insecticides: cyfluthrin. prole­nolos, cypermethrin, deltamethrin, methomyl-dimilin, chlorpyrifos, tiodicarb, fenpropathrin and fenvalerate. had no/or neglected effect on the fungus Alternaria spp. on the basis of LC50 values. Mixing these in­secticides with the above fungicides gave best results in case of manco­zeb, s.haris and metalaxyl-mancozeb, respectively, while in case of pro­pineb the effeciency was reduced.
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