PLoS Pathog 8:e1002940Ĭorbiere R, Rekad FZ, Galfout A, Andrivon D, Bouznad Z (2010) Phenotypic and genotypic characteristics of Algerian isolates of Phytophthora infestans. Phytopathology 85:1500–1506Ĭooke DEL, Cano LM, Raffaele S, Bain RA, Cooke LR, Etherington GJ, Deahl KL, Farrer RA, Gilroy EM, Goss EM, Grünwald NJ, Hein I, MacLean D, McNicol JW, Randall E, Oliva RF, Pel MA, Shaw DS, Squires JN, Taylor MC, Vleeshouwers VG, Birch PR, Lees AK, Kamoun S (2012) Genome analyses of an aggressive and invasive lineage of the Irish potato famine pathogen. Phytopathology 97:1274–1283Ĭohen Y, Baider A, Cohen BH (1995) Dimethomorph activity against oomycete fungal plant pathogens. Plant Pathol 64:191–199Ĭohen Y, Gisi U (2007) Differential activity of carboxylic acid amide fungicides against various developmental stages of Phytophthora infestans. PPO-Special Report 14, pp 311–312Ĭhowdappa P, Nirmal Kumar BJ, Madhura S, Mohan Kumar SP, Myers KL, Fry WE, Cooke DEL (2015) Severe outbreaks of late blight on potato and tomato in south India caused by recent changes in the Phytophthora infestans population. Global Crop Protection Federation, Brussels pp 48īugiani R, Antoniacci L, Trevisan I (2010) Curative effect of fungicides against tomato late blight. PPO-Special Report 16:117–122īrent KJ, Hollomon DW (1998) Fungicide resistance: the assessment of risk. MN, USA pp 28–31īraun CA, Wanningen R, Schirring A (2014) Infinito ®: protection against different Phytophthora infestans isolates of the A2 & A1 mating type. Stakman Commemorative Symposium on Crop Loss Assessment. ![]() ANNP 3rd international conference-plant diseases, Bordeaux, France, pp 887–894īerger RD (1980) Measuring disease intensity, Proceedings of E.C. J Econ Entomol 18:265–267Īlbert G, Thomas A, Guhne M (1991) Fungicidal activity of dimethomorph on different stages of the life cycle of Phytophthora infestans and Plasmopara viticola. ![]() This study provided useful information on the post-infection activity of some fungicides used to control tomato late blight and should be taken into account to perform more in depth studies at the field level and to improve the management strategies of the disease.Ībbott WS (1925) A method for computing the effectiveness of an insecticide. Interestingly, evidence of synergy between active ingredients having different modes of action was observed such as in the mixtures containing dimethomorph + ametoctradin, dimethomorph + pyraclostrobin and fosetyl-Al + propamocarb. Metalaxyl-M and cymoxanil showed the best curative activity while among the CAA fungicides, a good efficacy was expressed by dimethomorph. Differences in post-infection control between the different chemical classes were found. Disease severity was assessed three times from the development of the symptoms on the untreated plants and data analysed using a linear mixed model. Nine trials were performed in greenhouse using potted tomato plants that were treated 24 h after inoculation. infestans to determine their efficacy when applied after the infection process. The aim of this work was to study the curative activity of several fungicides toward P. ![]() However, even if curative applications are discouraged because they increase the risk of resistance development in the target pathogens, in practice fungicides may be applied also when the disease is already present, a situation that commonly occurs in the field. Control is achieved mainly by preventive fungicide applications. Late blight caused by Phytophthora infestans is the most devastating disease of tomato ( Solanum lycopersicum L.) and causes important economically losses if not properly controlled.
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