Fungi-based biopesticides: shelf-life preservation technologies used in commercial products

Quiroz, Reynaldo de la Cruz; Maldonado, Juan Jesús Cruz; Alanis, Magdalena de Jesús Rostro; Torres, J. Antonio; Parra‐Saldívar, Roberto

doi:10.1007/s10340-019-01117-5

Cited by 39 publications

(24 citation statements)

References 121 publications

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“…Naturally, pathogens have also not escaped attention as antagonists of insects [7][8][9]; among those, viruses have had a central role in ecological studies [10]. Moreover, from the late 1990s, there has been an exponential growth in studies focusing on the use of fungi as biocontrol agents [2,11]. However, the knowledge about the role of entomopathogenic fungi in natural settings is still scarce, despite the almost two centuries long awareness about these organisms in the scientific community [12].…”

Section: Introductionmentioning

confidence: 99%

Fungi Recorded on Folivorous Lepidoptera: High Diversity Despite Moderate Prevalence

Gielen

Meister

Tammaru

et al. 2021

JoF

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The knowledge about the diversity and ecological role of entomopathogenic fungi is primarily based on agroecosystems whereas information derived from natural insect populations is much more limited. To contribute to filling this gap, we recorded the prevalence of fungal infections in laboratory rearing experiments with five species of Lepidoptera, and in a field rearing experiment including one of these moths. The diversity of detected fungi was found to be high; we isolated 25 species of fungi from insects that had died in the course of these experiments. Six species belonged to the family Cordycipitaceae known to include unambiguous insect pathogens. The trophic niche of the representatives of other taxa is less clear and requires further studies. Regarding the most abundant species, Cordyceps farinosa, in which this question could be addressed, there was no indication of specialization on particular insect hosts, whereas several of the less common species may have been recorded from lepidopteran hosts for the first time. Across the subsets of the data, the prevalence of fungal infections generally remained below 5%. Our results are thus consistent with the idea that entomopathogenic fungi are always present in insect populations but rarely reach epizootic levels. The detected species richness shows that much is to be gained from mapping the diversity of fungal species associated with folivorous insects in natural populations.

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Section: Introductionmentioning

confidence: 99%

Fungi Recorded on Folivorous Lepidoptera: High Diversity Despite Moderate Prevalence

Gielen

Meister

Tammaru

et al. 2021

JoF

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“…The worth of an IP/technology will be derived from the likely benefits that would accrue to its end-users, and the price will be determined from the extent of the benefits that the R & D agencies would deem to appropriate. The valuation of new technology tends to be very complex, since it involves determining the present value against a future technology or product [ 39 ]. Cost of biopesticide unit: High costs are involved in establishing and running the lab for production of biopesticides at commercial scale and their quality control.…”

Section: Status Of Commercialization Diffusion and Adoption Of Biopesticides By The Farmers In Indiamentioning

confidence: 99%

Commercialization, Diffusion and Adoption of Bioformulations for Sustainable Disease Management in Indian Arid Agriculture: Prospects and Challenges

2021

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Trichoderma spp. is one of the most popular genus of fungi commercially available as a plant growth promoting fungus (PGPF) and biological control agent. More than 80 species of Trichoderma are reported in the literature. However T. asperellum, T. harzianum, T. viride, and T. virens are most commonly utilized as biocontrol agents. Studies were initiated to explore the potential of biocontrol agents in order to develop a cost effective and practical management strategy. Analysis of large number of soil samples collected from western parts of the region led to isolation of native biocontrol agents viz., Trichoderma harzianum, Aspergillus versicolor, and Bacillus firmus from different agricultural systems. These biocontrol agents have proved their antagonistic ability in laboratory tests and field trials. In India, two species of Trichoderma i.e., T. viride and T. harzianum are commercially registered for usage against soil borne plant pathogens mostly as a seed treatment or soil application. There are published scientific papers on the efficacy of T. asperellum and T. virens in India for suppressing pathogens but these are not yet registered under Central Insecticide Board and Registration Committee (CIB & RC). This review article focuses on the uses, commercialization and adoption issues of various fungal and bacterial consortium products in sustainable disease management.

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“…For these reasons, biocontrol methods that incorporate natural predators, parasites, and microbial pathogens of the target pest need to be developed. One of these is fungus-based biopesticides, which have a low possibility of resistance development, high specificity and biodegradability, and no health risks, and among several entomopathogenic fungi species, Metarhizium anisopliae (Hypocreales: Clavicipitaceae) has been intensively studied and commercialized in at least 25 countries 10 , 11 .…”

Section: Introductionmentioning

confidence: 99%

“…Among them, fungus-colonized grains are the most used because of their advantages in conidia production and direct application to soil 10 – 12 . However, the lack of conidia stability during distribution is a critical obstacle to its widespread use and market competitiveness 11 . To overcome this issue, several research efforts, such as designed formulations, pre-incubation, and adjuvant, have been suggested 11 , 13 , 14 ; however, constraints of high installation cost and obstacle of scaling up still limit commercial applications of these treatments.…”

Section: Introductionmentioning

confidence: 99%

Effect of storage conditions on the shelf-life extension of fungus-colonized substrates based on Metarhizium anisopliae using modified atmosphere packaging

Jeong¹,

Kim²,

Kim

et al. 2022

Sci Rep

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Metarhizium anisopliae is a promising alternative to chemical pesticides against pine wilt disease caused by Bursaphelenchus xylophilus. Herein, we investigated the efficacy of modified atmosphere packaging (MAP) to prolong the shelf-life of the M. anisopliae conidia. The effects of various conditions on its stability were also examined. M. anisopliae-inoculated millet grains were treated in a MAP system with different packaging materials (polypropylene, PP; polyethylene terephthalate, PET; ethylene vinyl alcohol, EVOH), gas compositions (high CO2 atmosphere, ≈ 90%; high O2 atmosphere, > 95%; high N2 atmosphere, > 95%; 30% CO2 + 70% N2; 50% CO2 + 50% N2; 70% CO2 + 30% N2), and storage temperatures (4 and 25 °C). Results revealed EVOH film as the best for the preservation of gases at all concentrations for 28 days. MAP treatment in the high-barrier EVOH film under an atmosphere of 30% CO2 + 70% N2 achieved 80.5% viability of dried conidia (7.4% moisture content), with 44.2–64.9% viability recorded with the other treatments. Cold storage for technical concentrates formulation promoted extension of shelf-life of MAP-treated conidia. These results imply that MAP under optimized conditions could enhance the shelf-life of fungus-based biopesticides in fungus-colonized substrates formulations.

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Fungi-based biopesticides: shelf-life preservation technologies used in commercial products

Cited by 39 publications

References 121 publications

Fungi Recorded on Folivorous Lepidoptera: High Diversity Despite Moderate Prevalence

Fungi Recorded on Folivorous Lepidoptera: High Diversity Despite Moderate Prevalence

Commercialization, Diffusion and Adoption of Bioformulations for Sustainable Disease Management in Indian Arid Agriculture: Prospects and Challenges

Effect of storage conditions on the shelf-life extension of fungus-colonized substrates based on Metarhizium anisopliae using modified atmosphere packaging

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