Biological control of Qinghai plateau terrestrial weeds with the A. alternata HL-1

Cheng, Liang; Zhu, Haixia; Wei, Youhai; Guo, Lei; Wu, Hua Hsi; Guo, Qianjin

doi:10.1007/s41348-021-00514-2

Cited by 3 publications

(4 citation statements)

References 56 publications

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“…5 Microorganisms in the plant phyllosphere and rhizosphere are a valuable resource for the discovery of new and effective biological control agents, particularly those for agricultural systems. 28,29 Endemic, broad host-range pathogens previously have been investigated for use as bioherbicides, with many initial developments involving genera including Colletotrichum, Chondrostereum, Phoma and Sclerotinia. A complete list is provided by Harding and Raizada.…”

Section: Specificity Within Broad Host-range Pathogensmentioning

confidence: 99%

“…malvae (registered as BioMal), has a broad host range, infecting other genera, although this has not precluded its use as a bioherbicide 35 . There are other examples of broad host‐range pathogens being targeted for inclusion in bioherbicides: Alternaria alternata , 28,36 Fusarium spp. including F. oxysporum 37 and F. tumidum , 38,39 Diaporthe spp., 40 Lasiodiplodia pseudotheobromae 41 and Macrophomina phaseolina 42 …”

Section: Specificity Within Broad Host‐range Pathogensmentioning

confidence: 99%

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Broad host‐range pathogens as bioherbicides: managing nontarget plant disease risk

Bourdôt

Casonato

2023

Pest Management Science

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Plant pathogens with a broad host range are commercially more attractive as microbial bioherbicides than strictly host‐specific pathogens as a result of the wider market potential of a product capable of controlling multiple species. However, the perceived spatiotemporal disease risk to nontarget plants is a barrier to their adoption for weed control. We consider two approaches to managing this risk. First, we consider safety zones and withholding periods for bioherbicide treatment sites. These must ensure inoculum spreading from, or surviving at the site, exposes nontarget plants to no more inoculum than from natural sources. They can be determined using simple dispersal models. We show that a ratio of added:natural inoculum of 1.0 is biologically reasonable as an ‘acceptable risk’ and a sound basis for safety zones and withholding periods. These would be analogous to the ‘conditions of use’ for synthetic chemical herbicides aimed at minimizing collateral damage to susceptible plants from spray drift and persistent soil residues. Second, weed‐specific isolates of broad host‐range pathogens may avoid the need for safety zones and withholding periods. Such isolates have been found in many broad host‐range pathogen species. Their utilization as bioherbicides may more easily meet the requirements of regulators. Mixtures of different weed‐specific isolates of a pathogen could provide bioherbicides with commercially attractive spectrums of weed control activity. © 2023 The Authors. Pest Management Science published by John Wiley & Sons Ltd on behalf of Society of Chemical Industry.

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Section: Specificity Within Broad Host-range Pathogensmentioning

confidence: 99%

Section: Specificity Within Broad Host‐range Pathogensmentioning

confidence: 99%

Broad host‐range pathogens as bioherbicides: managing nontarget plant disease risk

Bourdôt

Casonato

2023

Pest Management Science

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“…These effects ultimately cause severe plant stress and gradual death [79][80][81], and experiments and developments in this field have identified several plant sources with the potential to be formulated as a bioherbicide (Table 3). These sources include allelopathic chemicals from Canavalia ensiformis de Candolle (jack bean) (50 g L −1 ) [82], Cirsium setosum L. (HL-1 isolate) [83], Cynara cardunculus L. (artichoke thistle) (ethanol + lyophilized leaf extracts) [84,85], Juglans nigra L. (black walnut) (>42.9% concentration) [86], Lantana camara L. (Lantana) [81], Ocimum basilicum L. (sweet basil) [87] and Sorghum bicolor L. (great millet) [88]. While all these sources have shown success in controlling various weeds (Table 3), it is important to note here that further research on their long-term and repeated use in agricultural and natural ecosystems is required.…”

Section: Plant Extracts (Allelochemicals and Essential Oils)mentioning

confidence: 99%

“…These factors influence the formulation process and the performance of a bioherbicide, which can lower its efficiency when applied directly to a plant [111]. It has also been reported that increased temperatures and carbon dioxide (CO 2 ) levels in the atmosphere, driven by anticipated climate change scenarios, are likely to significantly change weed population dynamics in the future [83,112]. In this regard, current weed management strategies may not provide adequate control of many weeds, with evidence showing that increased CO 2 concentrations and temperature have resulted in more occurrences of herbicide resistance [113][114][115][116].…”

Section: Achievements Developments and Future Challengesmentioning

confidence: 99%

Achievements, Developments and Future Challenges in the Field of Bioherbicides for Weed Control: A Global Review

Roberts

Florentine

Fernando

et al. 2022

Plants

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The intrusion of weeds into fertile areas has resulted in significant global economic and environmental impacts on agricultural production systems and native ecosystems, hence without ongoing and repeated management actions, the maintenance or restoration of these systems will become increasingly challenging. The establishment of herbicide resistance in many species and unwanted pollution caused by synthetic herbicides has ushered in the need for alternative, eco-friendly sustainable management strategies, such as the use of bioherbicides. Of the array of bioherbicides currently available, the most successful products appear to be sourced from fungi (mycoherbicides), with at least 16 products being developed for commercial use globally. Over the last few decades, bioherbicides sourced from bacteria and plant extracts (such as allelochemicals and essential oils), together with viruses, have also shown marked success in controlling various weeds. Despite this encouraging trend, ongoing research is still required for these compounds to be economically viable and successful in the long term. It is apparent that more focused research is required for (i) the improvement of the commercialisation processes, including the cost-effectiveness and scale of production of these materials; (ii) the discovery of new production sources, such as bacteria, fungi, plants or viruses and (iii) the understanding of the environmental influence on the efficacy of these compounds, such as atmospheric CO2, humidity, soil water stress, temperature and UV radiation.

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Endophytic microbiota of floating aquatic plants: recent developments and environmental prospects

Pramanic

Sharma

Dhanorkar

et al. 2023

World J Microbiol Biotechnol

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Biological control of Qinghai plateau terrestrial weeds with the A. alternata HL-1

Cited by 3 publications

References 56 publications

Broad host‐range pathogens as bioherbicides: managing nontarget plant disease risk

Broad host‐range pathogens as bioherbicides: managing nontarget plant disease risk

Achievements, Developments and Future Challenges in the Field of Bioherbicides for Weed Control: A Global Review

Endophytic microbiota of floating aquatic plants: recent developments and environmental prospects

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