Efficacy of fungicidal protection of newly developing potato leaves against Phytophthora infestans

Evenhuis, A.; Spits, H.G.; Schepers, H.T.A.M.

doi:10.1016/j.cropro.2005.09.001

Cited by 10 publications

(8 citation statements)

References 7 publications

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“…In addition, fluopicolide could be detected in tomato roots and leaves on day 1 after soil treatment, and could even exist for more than 20 days, which is consistent with previous results . With the passage of time, the concentrations of fluopicolide in tomato roots, stems and leaves have a tendency initially to increase and then to decrease, with different time intervals to reach peaks.…”

Section: Discussionsupporting

confidence: 90%

Transportation behaviour of fluopicolide and its control effect against Phytophthora capsici in greenhouse tomatoes after soil application

Jiang

Wang

et al. 2014

Pest Management Science

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Section: Discussionsupporting

confidence: 90%

Transportation behaviour of fluopicolide and its control effect against Phytophthora capsici in greenhouse tomatoes after soil application

Jiang

Wang

et al. 2014

Pest Management Science

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“…In order to optimize the use of fungicides, it is important to know the effectiveness and type of activity of the active ingredients to control blight. What is their effectiveness on leaf blight, stem blight and tuber blight and do they protect the new growing point (Evenhuis et al 1996(Evenhuis et al , 2006bSchepers and Van Soesbergen 1995)? Are the fungicides protectant, curative or eradicant (Schepers 2000)?…”

Section: The Netherlandsmentioning

confidence: 99%

Epidemiology and Integrated Control of Potato Late Blight in Europe

et al. 2011

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Phytophthora infestans, the causal agent of late blight, is a major threat to potato production in northwestern Europe. Before 1980, the worldwide population of P. infestans outside Mexico appeared to be asexual and to consist of a single clonal lineage of A1 mating type characterized by a single genotype. It is widely believed that new strains migrated into Europe in 1976 and that this led to subsequent population changes including the introduction of the A2 mating type. The population characteristics of recently collected isolates in NW Europe show a diverse population including both mating types, sexual reproduction and oospores, although differences are observed between regions. Although it is difficult to find direct evidence that new strains are more aggressive, there are several indications from experiments and field epidemics that the aggressiveness of P. infestans has increased in the past 20 years. The relative importance of the different primary inoculum sources and specific measures for reducing their role, such as covering dumps with plastic and preventing seed tubers from becoming infected, is described for the different regions. In NW Europe, varieties with greater resistance tend not to be grown on a large scale. From the grower's perspective, the savings in fungicide input that can be achieved with these varieties are not compensated by the higher (perceived) risk of blight. Fungicides play a crucial role in the integrated control of late blight. The spray strategies in NW Europe and a table of the specific attributes of the most important fungicides in Europe are presented. The development and use of decision support systems (DSSs) in NW Europe are described. In The Netherlands, it is estimated that almost 40% of potato growers use recommendations based on commercially available DSS. In the Nordic countries, a new DSS concept with a fixed 7-day spray interval and a variable dose rate is being tested. In the UK, commercially available DSSs are used for c. 8% of the area. The validity of Smith Periods for the new population of P. infestans in the UK is currently being evaluated.

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“…Metalaxyl-M is a systemic fungicide which is applied either on foliage or via soil drenching for the control of oomycetes such as Phytophthora parasitica (tobacco), Phytopthora infestans (potato), and Pythium sp. [20]. Nothing is known regarding the impact of those pesticides on the microbial community of plant phyllosphere.…”

Section: Introductionmentioning

confidence: 99%

Effects of Systemic Pesticides Imidacloprid and Metalaxyl on the Phyllosphere of Pepper Plants

Moulas

Petsoulas

Rousidou

et al. 2013

BioMed Research International

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Microbes inhabiting the phyllosphere of crops are exposed to pesticides applied either directly onto plant foliage or indirectly through soil. Although, phyllosphere microbiology has been rapidly evolving, little is still known regarding the impact of pesticides on the epiphytic microbial community and especially on fungi. We determined the impact of two systemic pesticides (metalaxyl and imidacloprid), applied either on foliage or through soil, on the epiphytic fungal and bacterial communities via DGGE and cloning. Both pesticides induced mild effects on the fungal and the bacterial communities. The only exception was the foliage application of imidacloprid which showed a more prominent effect on the fungal community. Cloning showed that the fungal community was dominated by putative plant pathogenic ascomycetes (Erysiphaceae and Cladosporium), while a few basidiomycetes were also present. The former ribotypes were not affected by pesticides application, while selected yeasts (Cryptococcus) were stimulated by the application of imidacloprid suggesting a potential role in its degradation. A less diverse bacterial community was identified in pepper plants. Metalaxyl stimulated an Enterobacteriaceae clone which is an indication of the involvement of members of this family in fungicide degradation. Further studies will focus on the isolation of epiphytic microbes which appear to be stimulated by pesticides application.

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Efficacy of fungicidal protection of newly developing potato leaves against Phytophthora infestans

Cited by 10 publications

References 7 publications

Transportation behaviour of fluopicolide and its control effect against Phytophthora capsici in greenhouse tomatoes after soil application

Transportation behaviour of fluopicolide and its control effect against Phytophthora capsici in greenhouse tomatoes after soil application

Epidemiology and Integrated Control of Potato Late Blight in Europe

Effects of Systemic Pesticides Imidacloprid and Metalaxyl on the Phyllosphere of Pepper Plants

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