Some microbial treatments against the tomato leaf miner; Tuta absoluta (Merick) under natural field conditions

dc.contributor.authorAmira S., Mohammed
dc.contributor.authorNagwa M. M., El-Khatteeb
dc.contributor.authorEzzat, A.
dc.date.accessioned2021-06-28T10:02:20Z
dc.date.available2021-06-28T10:02:20Z
dc.date.issued2013-03-03
dc.description.abstractIn an attempt to find more effective methods and safety to control the tomato leaf miner, Tuta absoluta, this research was conducted to study the efficacy of the four bio-treatments ; two bacterial isolates (Bacillus subtilis. and Pseudomonas Fluorescence), one fungal isolate Trichoderma viride) and Spinosad as a microbial insecticide compared with the most common insecticides used against the dipterous and lepidopterous leaf miners in Egypt; Profenofos and Aphox. In the two successive seasons; 2011 and 2012, the fungal isolate Trichoderma viride achieved the lowest infestation(numbers of infested leaflets, mines, infestation percentages) which were 167, 195, and 21.9% resp.in season 2011 and 198, 222 and 26.2% resp. in season 2012. While the highest infestation was occurred in case of using the insecticides, Aphox (423, 559 and 55.9% resp.& 384, 839 and 72.2%. and Prohpenofos (436, 562 and 57.7% &391, 534 and 51.7% resp.).during 2011 and 2012 respectively. The other treatments occupied the intermediate levels. On the other hand, the yield of tomato fruits was increased by 75% over the check in case of plants treated with Trichoderma viride isolate, but the pesticide treatment given weak or no impact in increasing tomato crop. In season 2012, the infested tomato fruits percentages with T. absoluta larvae and Rhizoctonia soil rot disease(that Frequently observed incidentally) were recorded the minimum levels obtained by spraying Trichoderma viride isolate(21.38 and 10.32% resp.). In contrast, the maximum levels were recorded in Prophenofos (44.87 and22.78% resp.) and Aphox treatments(47.22 and 27.78% resp.).en
dc.formatapplication/pdf
dc.identifier.citationInternational Journal of Horticultural Science, Vol. 19 No. 1-2 (2013) , 81-84.
dc.identifier.doihttps://doi.org/10.31421/IJHS/19/1-2/1087
dc.identifier.eissn2676-931X
dc.identifier.issn1585-0404
dc.identifier.issue1-2
dc.identifier.jatitleInt. j. hortic. sci.
dc.identifier.jtitleInternational Journal of Horticultural Science
dc.identifier.urihttps://hdl.handle.net/2437/314744en
dc.identifier.volume19
dc.languageen
dc.relationhttps://ojs.lib.unideb.hu/IJHS/article/view/1087
dc.rights.accessOpen Access
dc.rights.ownerInternational Journal of Horticultural Science
dc.subjecttomatoen
dc.titleSome microbial treatments against the tomato leaf miner; Tuta absoluta (Merick) under natural field conditionsen
dc.typefolyóiratcikkhu
dc.typearticleen
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