Drivers of entomopathogenic fungi presence in organic and conventional vineyard soils

Uzman, Deniz; Pliester, Jasmin; Leyer, Ilona; Entling, Martin H.; Reineke, Annette

doi:10.1016/j.apsoil.2018.09.004

Cited by 39 publications

(33 citation statements)

References 47 publications

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“…Dhanapal et al Egyptian Journal of Biological Pest Control (2020) 30:34 (Uzman et al, 2019 andMoloinyane et al, 2020) whereas the pH and EC of the soil samples did not show any significant impact on the occurrence of EPF (Karthick et al, 2013). This might be because of higher cation exchange capacities of the soil with greater organic matter, which are responsible for enhanced adsorption of fungal conidia.…”

Section: Resultsmentioning

confidence: 99%

Exploration of indigenous strains of the green muscardine fungus from soils and their pathogenicity against the tobacco caterpillar, Spodoptera litura (Fabricius) (Lepidoptera: Noctuidae)

Dhanapal

Kumar

Lakshmipathy³

et al. 2020

Egypt J Biol Pest Control

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In the recent years, the keen interest has been increased towards biological control-based management practices using entomopathogenic fungi (EPF) for the control of many economically important insects. In this management practices, selection of right strains of EPF is an important criteria to control the target pests in effective manner. In this context, this research work was formulated to find out environmentally effective strains of EPF in the soils of costal districts of Andhra Pradesh. Out of 135 soil samples collected, 8 soil samples yielded 8 strains of Metarhizium anisopliae. Among all 8 M. anisopliae isolates, the least median lethal concentration (LC 50) for 2nd instar of the tobacco caterpillar, Spodoptera litura (Lepidoptera: Noctuidae) was 1.24 × 10 5 spores ml-1 in M-7, followed by 1.72 × 10 5 spores ml-1 in M-5 and 1.86 × 10 5 spores ml-1 in M-4 in an increasing order. Likewise, the median lethal time (LT 50) values of different isolates of EPF against 2 nd instar of S.litura were calculated for a uniform highest dose of 1 × 10 8 spores ml −1. Among all 8 M. anisopliae isolates, the lowest LT 50 was observed as 186.44 hours post infection (hpi) with M-5 and 189.34 hpi with M-7.

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Section: Resultsmentioning

confidence: 99%

Exploration of indigenous strains of the green muscardine fungus from soils and their pathogenicity against the tobacco caterpillar, Spodoptera litura (Fabricius) (Lepidoptera: Noctuidae)

Dhanapal

Kumar

Lakshmipathy³

et al. 2020

Egypt J Biol Pest Control

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“…Entomopathogenic fungi also act as endophytes in the absence of host that explains their high abundance in the soils of argan elds having vegetation throughout the year [11,59,60]. On the other hand, recently Uzman, et al [21] have reported that entomopathogenic fungi can even persist in intensively managed vineyard systems. They reported that application of chemicals had no signi cant effect on the presence of entomopathogenic fungi in vineyard soils of Germany.…”

Section: Discussionmentioning

confidence: 99%

Diversity of entomopathogenic fungi associated with Mediterranean fruit fly (C. capitata) in Moroccan Argan forests and nearby area: impact of soil factors on their distribution

Zahidi

et al. 2020

Preprint

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Background: Studying the ecology of biocontrol-agents is a prerequisite to effectively control medfly (C. capitata) with entomopathogenic fungi. In this context, factors affecting the occurrence and distribution of medfly-associated entomopathogenic-fungi were studied. Soil samples (22) were collected from natural and cultivated areas of Souss-region Morocco. Results: A total of 260 fungal isolates belonging to 22 species and 10 genera were obtained by using medfly pupae as bait. Medfly-associated fungi were detected in all studied soils and pupae infection percentages ranged from 3.33% to 48%. Two genera, Fusarium and Beauveria were the most frequent with 83 isolates (32%) and 50 isolates (19.23%) respectively. Pathogenicity test of isolated species against medfly pupae showed high mortality rates up to 91% for some strains. Principal component analysis (PCA) demonstrated strong influence of origin, physical and chemical properties of soil on the abundance of these fungi. In general, medfly-associated fungi were more abundant in soils with moderate pH (7.5 to 8) having high sand and organic content. High relative humidity negatively influenced the abundance of these fungi. Both factors directly affected the fungal infection percentages in pupae. The response of fungi to these parameters varied among species. According to principal component analysis (PCA) the soils of argan fields and forests were more suitable for the development of medfly-associated fungi than citrus orchards. Conclusions: These results provide guidance on identifying suitable soils for effective application of entomopathogenic fungi as biological control agents. In summary, isolated indigenous strains seem to be a promising option to control C. capitata.

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“…Entomopathogenic fungi also act as endophytes in the absence of a host that explains their high abundance in the soils of argan elds having vegetation throughout the year [11,59,60]. On the other hand, recently Uzman, et al [21] have reported that entomopathogenic fungi can even persist in intensively managed vineyard systems. They reported that the application of chemicals had no signi cant effect on the presence of entomopathogenic fungi in the vineyard soils of Germany.…”

Section: Discussionmentioning

confidence: 99%

“…However, the parameters of this medium such as texture, pH, electrical conductivity, relative humidity, carbon/nitrogen ratio, and organic matter content directly affect the availability and abundance of fungal species [17][18][19]. Several studies have reported the effect of soil type, climatic factors, and agricultural practices on the distribution of entomopathogenic fungi [20][21][22]. Thus, suitable levels of these soil parameters may promote the development of speci c species than others.…”

Section: Introductionmentioning

confidence: 99%

Diversity of entomopathogenic fungi associated with Mediterranean fruit fly (Ceratitis capitata (Diptera: Tephritidae)) in Moroccan Argan forests and nearby area: impact of soil factors on their distribution 

HALLOUTI

Hamza

Zahidi

et al. 2020

Preprint

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Background: Studying the ecology of biocontrol-agents is a prerequisite to effectively control medfly (Ceratitis capitata (Diptera: Tephritidae)) with entomopathogenic fungi. In this context, factors affecting the occurrence and distribution of medfly-associated entomopathogenic-fungi were studied. Soil samples (22) were collected from natural and cultivated areas of Souss-region Morocco. Results: A total of 260 fungal isolates belonging to 22 species and 10 genera were obtained by using medfly pupae as bait. Medfly-associated fungi were detected in all studied soils and pupae infection percentages ranged from 3.33% to 48%. Two genera, Fusarium and Beauveria were the most frequent with 83 isolates (32%) and 50 isolates (19.23%) respectively. Pathogenicity test of isolated species against medfly pupae showed high mortality rates up to 91% for some strains. Principal component analysis (PCA) demonstrated a strong influence of origin, physical, and chemical properties of soil on the abundance of these fungi. In general, medfly-associated fungi were more abundant in soils with moderate pH (7.5 to 8) having high sand and organic content. High relative humidity negatively influenced the abundance of these fungi. Both factors directly affected the fungal infection percentages in pupae. The response of fungi to these parameters varied among species. According to principal component analysis (PCA), the soils of argan fields and forests were more suitable for the development of medfly-associated fungi than citrus orchards. Conclusions: These results guide identifying suitable soils for the effective application of entomopathogenic fungi as biological control agents. In summary, isolated indigenous strains seem to be a promising option to control C. capitata.

show abstract

Drivers of entomopathogenic fungi presence in organic and conventional vineyard soils

Cited by 39 publications

References 47 publications

Exploration of indigenous strains of the green muscardine fungus from soils and their pathogenicity against the tobacco caterpillar, Spodoptera litura (Fabricius) (Lepidoptera: Noctuidae)

Exploration of indigenous strains of the green muscardine fungus from soils and their pathogenicity against the tobacco caterpillar, Spodoptera litura (Fabricius) (Lepidoptera: Noctuidae)

Diversity of entomopathogenic fungi associated with Mediterranean fruit fly (C. capitata) in Moroccan Argan forests and nearby area: impact of soil factors on their distribution

Diversity of entomopathogenic fungi associated with Mediterranean fruit fly (Ceratitis capitata (Diptera: Tephritidae)) in Moroccan Argan forests and nearby area: impact of soil factors on their distribution

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Drivers of entomopathogenic fungi presence in organic and conventional vineyard soils

Cited by 39 publications

References 47 publications

Exploration of indigenous strains of the green muscardine fungus from soils and their pathogenicity against the tobacco caterpillar, Spodoptera litura (Fabricius) (Lepidoptera: Noctuidae)

Exploration of indigenous strains of the green muscardine fungus from soils and their pathogenicity against the tobacco caterpillar, Spodoptera litura (Fabricius) (Lepidoptera: Noctuidae)

Diversity of entomopathogenic fungi associated with Mediterranean fruit fly (C. capitata) in Moroccan Argan forests and nearby area: impact of soil factors on their distribution

Diversity of entomopathogenic fungi associated with Mediterranean fruit fly (Ceratitis capitata (Diptera: Tephritidae)) in Moroccan Argan forests and nearby area: impact of soil factors on their distribution&nbsp;

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Diversity of entomopathogenic fungi associated with Mediterranean fruit fly (Ceratitis capitata (Diptera: Tephritidae)) in Moroccan Argan forests and nearby area: impact of soil factors on their distribution