Effect of Soil Solarization on Soil Microflora and Survival of Dematophora Necatrix in Temperate Fruit Nurseries

Sharma, Shweta; Kishore, D. K.; Pramanick, K. K.

doi:10.17660/actahortic.2005.696.67

Cited by 7 publications

(7 citation statements)

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“…We did not conduct any quantitative analysis of fungal and prokaryotic population sizes. Solarization has been shown to reduce fungal and bacterial populations (Gelsomino and Cacco, 2006; Sharma et al., 2002) at least initially; however, microbial activity later resumes, either gradually or rapidly after solarization is completed (Gamliel & Katan, 2012). In our trials, we did not detect any plant pathogen taxa with a significant correlation to heat intensity, likely because the sites were not known to have many plant pathogenic microbes.…”

Section: Discussionmentioning

confidence: 99%

The effects of soil solarization and application of a Trichoderma biocontrol agent on soil fungal and prokaryotic communities

Funahashi

Myrold

Parke³

2022

Soil Science Soc of Amer J

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Soil solarization and biological control are two management strategies that have been used globally to manage soil‐borne plant pathogens. However, the broader effects of these strategies on soil microbial communities have not been well described. Soil prokaryotic and fungal communities were investigated by environmental DNA amplicon sequencing as part of field trials conducted in San Rafael, CA, and in Corvallis, OR. We examined microbial community changes following soil solarization, amendment with the biocontrol agent Trichoderma asperellum (TA), or solarization followed by application of the biocontrol agent. Soil solarization caused significant changes to prokaryotic and fungal communities by reducing species richness and diversity. Soil water potential was determined to be a significant factor affecting the prokaryotic community. Application of TA to solarized or nonsolarized soil did not significantly alter the microbial communities. However, solarization resulted in diminished microbial densities that appeared to enhance subsequent establishment of the biocontrol agent. This study revealed how specific environmental variables of heat intensity and soil moisture contribute to changes in the abundance of individual taxa and taxonomic groups.

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Section: Discussionmentioning

confidence: 99%

The effects of soil solarization and application of a Trichoderma biocontrol agent on soil fungal and prokaryotic communities

Funahashi

Myrold

Parke³

2022

Soil Science Soc of Amer J

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“…This method developed in Israel during the late 1970s, was used as an ecofriendly approach to control white root rot disease. This method has proven effective and was used successfully against R. necatrix in established avocado and apple tree orchards (Freeman et al, 1990;López-Herrera et al, 1995;Sztejnberg et al, 1987) and apple nurseries (Sharma and Sharma, 2002). Sztejnberg et al (1987) reportedly achieved 75% mortality of R. necatrix at a soil depth of 60 cm after 56 days of solarization.…”

Section: Solarizationmentioning

confidence: 99%

“…Along with the thermal inactivation of the pathogen, other mechanisms, such as the accumulation of volatile substances under the plastic film and the activation of soil microorganisms assist in pathogen control (Freeman et al, 1990). Moreover, when analyzing solarized soils, Sharma and Sharma (2002) observed an increased population of thermo-tolerant antagonistic microorganisms, although the total microbial population, including fungi, bacteria, and actinomycetes decreased. However, soil solarization fulfills the requirements for successfully controlling soil-borne pathogen in orchards, as the trees are not damaged, since the inoculum is controlled at a considerable depth with delayed soil reinfestation.…”

Section: Solarizationmentioning

confidence: 99%

Current Status and Future Prospects of White Root Rot Management in Pear Orchards: A Review

Sawant¹,

Choi²,

Song

et al. 2021

Res. Plant Dis

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The current social demand for organic, sustainable, and eco-friendly approaches for farming, while ensuring the health and productivity of crops is increasing rapidly. Biocontrol agents are applied to crops to ensure biological control of plant pathogens. Research on the biological control of white root rot disease caused by a soil-borne pathogen, Rosellinia necatrix, is limited in pears compared to that in apple and avocado. This pathogenic fungus has an extensive host range, and symptoms of this disease include rotting of roots, yellowing and falling of leaves, wilting, and finally tree death. The severity of the disease caused by R. necatrix , makes it the most harmful fungal pathogen infecting the economical fruit tree species, such as pears, and is one of the main limiting factors in pear farming, with devastating effects on plant health and yield. In addition to agronomic and cultural practices, growers use chemical treatments to control the disease. However, rising public concern about environmental pollution and harmful effects of chemicals in humans and animals has facilitated the search for novel and environmentally friendly disease control methods. This review will briefly summarize the current status of biocontrol agents, ecofriendly methods, and possible approaches to control disease in pear orchards.

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“…Shimla. Sharma et al (2005) found that long-duration plasticulture treatments during May to June were effective for management of soil-borne pathogens in temperate areas. In their study, soil solarization was conducted for 2, 4, 6, 8, 10, and 12 weeks period in April to June, using polyethylene sheets of 25 μm thickness.…”

Section: Applications Of Soil Solarization In Indiamentioning

confidence: 99%

The Role of Soil Solarization in India: How an Unnoticed Practice Could Support Pest Control

et al. 2017

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Plant protection represents one of the strategies to fill the yield gap and to achieve food security, a key topic for India development. Analysis of climate risks for crops indicates that South Asia is one of the regions most exposed to the adverse impact on many plants that are relevant to inhabitants exposed to food safety risks. Furthermore, accumulation of pesticide residues in the aquatic and other ecosystems is becoming a significant threat in India. These perspectives require to develop programs of crop protection that can be feasible according to Indian rural development and pollution policy. Here we review the research works done on soil solarization in India. Soil solarization (also called plasticulture) is an eco-friendly soil disinfestations method for managing soil-borne plant pathogens. This is the process of trapping solar energy by moist soil covered with transparent polyethylene films and chemistry, biology and physical properties of soil are involved in pest control. So far, this technique is applied in more than 50 countries, mostly in hot and humid regions. India has 29 states and these states fall under five climatic zones, from humid to arid ones. We report pest management application in different climatic zones and their effects on production, weeds, nematodes, and pathogenic microorganisms. The analysis of soil temperatures and crop protection results indicate as environmental requirement for soil solarization fits in most of Indian rural areas. Soil solarization is compatible with future Indian scenarios and may support Indian national food security programs.

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Effect of Soil Solarization on Soil Microflora and Survival of Dematophora Necatrix in Temperate Fruit Nurseries

Cited by 7 publications

References 0 publications

The effects of soil solarization and application of a Trichoderma biocontrol agent on soil fungal and prokaryotic communities

The effects of soil solarization and application of a Trichoderma biocontrol agent on soil fungal and prokaryotic communities

Current Status and Future Prospects of White Root Rot Management in Pear Orchards: A Review

The Role of Soil Solarization in India: How an Unnoticed Practice Could Support Pest Control

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