Neem-based products as potential eco-friendly mosquito control agents over conventional eco-toxic chemical pesticides-A review

Chatterjee, Soumendranath; Bag, Souvik; Biswal, Debraj; Paria, Dipanwita Sarkar; Bandyopadhyay, Raktima; Sarkar, Basanta; Mandal, Abhijit; Dangar, Tushar Kanti

doi:10.1016/j.actatropica.2023.106858

Cited by 21 publications

(14 citation statements)

References 69 publications

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“…Essential oils have demonstrated effectiveness in repelling various insect species, with notable success in combating blood-feeding pests that pose a threat to humans, such as mosquitoes ( Sukumar et al., 1991 ; Carroll and Loye, 2006 ; Grison et al., 2020 ; Chatterjee et al., 2023 ). Additionally, essential oils have proven to be efficient in safeguarding stored-product crops ( Karabörklü and Ayvaz, 2023 ).…”

Section: Discussionmentioning

confidence: 99%

Evaluation of a push-and-pull strategy using volatiles of host and non-host plants for the management of pear psyllids in organic farming

Czarnobai De Jorge,

Koßmann,

Hummel

et al. 2024

Front. Plant Sci.

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IntroductionPear decline (PD) is one of the most devastating diseases of Pyrus communis in Europe and North America. It is caused by the pathogen ‘Candidatus Phytoplasma pyri’ and transmitted by pear psyllids (Cacopsylla pyri, C. pyricola, and C. pyrisuga). Identifying attractant and repellent volatile organic compounds (VOCs) could improve the development of alternative plant protection measurements like push-pull or attract-and-kill strategies against pear psyllids. Our objective was to investigate which chemical cues of the host plant could influence the host-seeking behavior of pear psyllids, and if cedarwood (CWO) and cinnamon bark (CBO) essential oils could serve as repellents.Results and discussionBased on the literature, the five most abundant VOCs from pear plants elicited EAG responses in both C. pyri and C. pyrisuga psyllid species. In Y-olfactometer trials, single compounds were not attractive to C. pyri. However, the main compound mixture was attractive to C. pyri and C. pyrisuga females. CWO and CBO were repellent against C. pyri, and when formulated into nanofibers (NF), both were repellent in olfactometer trials. However, CBO nanoformulation was ineffective in masking the odors of pear plants. In a field trial, attractive, repellent CWO and blank formulated NF were inserted in attractive green sticky traps. C. pyri captures in traps with CWO NF were statistically lower than in traps with the attractive mixture. Nevertheless, no statistical differences in the numbers of caught specimens were observed between CWO NF and those captured in green traps baited with blank NF. Transparent traps captured fewer psyllids than green ones. In a second field study with a completed different design (push-and-count design), dispensers filled with CBO were distributed within the plantation, and attractive green sticky traps were placed around the plantation. The numbers of trapped pear psyllids increased significantly in the border of the treated plantation, showing that psyllids were repelled by the EOs in the plantation. Although further field evaluation is needed to assess and improve their effectiveness, our results show that these aromatic compounds, repellent or attractive both in nanoformulations and marking pen dispensers, offer great potential as an environmentally sustainable alternative to currently applied methods for managing pear decline vectors.

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Section: Discussionmentioning

confidence: 99%

Evaluation of a push-and-pull strategy using volatiles of host and non-host plants for the management of pear psyllids in organic farming

Czarnobai De Jorge,

Koßmann,

Hummel

et al. 2024

Front. Plant Sci.

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“…Essential oils have been shown to repel many species of insects, and their practical application has been most prominent against blood feeding pests attacking humans, such as mosquitoes (Carroll & Loye, 2006; Chatterjee et al., 2023; Sukumar et al., 1991; Xue et al., 2003) and ticks (Jaenson et al., 2006; Nwanade et al., 2020). There has also been successful application of botanical oils for protection of stored‐product crops (Jilani et al., 1988).…”

Section: Discussionmentioning

confidence: 99%

Glycerin‐based dispensers of fir oil reduce response of Asian citrus psyllid, Diaphorina citri, to citrus odours

Chuang,

Stelinski,

Pérez Cordero

et al. 2023

J Applied Entomology

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The Asian citrus psyllid, Diaphorina citri Kuwayama, transmits the bacterial pathogen associated with huanglongbing, a fatal citrus disease. Alternatives to insecticides for D. citri management are being explored, given the development of insecticide resistance and the lack of efficient biological controls. Essential oils as pest repellents have shown some efficacy in laboratory and field evaluations; however, lack of an effective dispenser for field deployment has prevented their application. In this investigation, we evaluated glycerin‐based dispensers releasing fir (Abies spp.) oil as repellents for D. citri. In olfactometer tests, glycerin dispensers loaded with fir oil at 20% w/w repelled psyllids from citrus odours but did not cause repellency at lower loading dosages. Field evaluations were conducted with dispensers at the 20% loading dosage based on laboratory results. In open‐air cage bioassays, fewer psyllids alighted on trees treated with 2 dispensers per tree than on control trees. Similarly, fewer psyllids were found on mature lime trees in homeowner landscapes treated with 4 dispensers per tree compared to paired control trees. In small plot experiments in commercial grapefruit, psyllid infestation of young leaf flush shoots was reduced in plots treated with at least 250 dispensers/ha compared to untreated control plots. Our results indicate that these glycerin‐based fir oil dispensers can reduce infestation of citrus by D. citri. However, the efficacy observed within replicated small plots of citrus grown in monoculture was judged insufficient to manage this vector as a stand‐alone treatment. Larger scale evaluations at higher loading dosages of fir oil and/or in combination with other management tools are warranted based on the outcomes of these initial experiments.

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“…Ultimately, a comprehensive risk-benefit analysis should guide the decision-making process when considering the application of these agents. Hence, certain well-documented safer agents, including plant-extracted anti-insect agents (such as neem oil and canola oil) [ 208 , 209 ] and microbial pesticides (such as the mosquitocidal agents from Bacillus sphaericus ) [ 210 ] should be considered in livestock excrement treatment.…”

Section: Strategies To Predict Prevent the Microbial Risks Of Livesto...mentioning

confidence: 99%

Microbial Risks Caused by Livestock Excrement: Current Research Status and Prospects

Abdugheni,

Li,

Yang

et al. 2023

Microorganisms

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Livestock excrement is a major pollutant yielded from husbandry and it has been constantly imported into various related environments. Livestock excrement comprises a variety of microorganisms including certain units with health risks and these microorganisms are transferred synchronically during the management and utilization processes of livestock excrement. The livestock excrement microbiome is extensively affecting the microbiome of humans and the relevant environments and it could be altered by related environmental factors as well. The zoonotic microorganisms, extremely zoonotic pathogens, and antibiotic-resistant microorganisms are posing threats to human health and environmental safety. In this review, we highlight the main feature of the microbiome of livestock excrement and elucidate the composition and structure of the repertoire of microbes, how these microbes transfer from different spots, and they then affect the microbiomes of related habitants as a whole. Overall, the environmental problems caused by the microbiome of livestock excrement and the potential risks it may cause are summarized from the microbial perspective and the strategies for prediction, prevention, and management are discussed so as to provide a reference for further studies regarding potential microbial risks of livestock excrement microbes.

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Neem-based products as potential eco-friendly mosquito control agents over conventional eco-toxic chemical pesticides-A review

Cited by 21 publications

References 69 publications

Evaluation of a push-and-pull strategy using volatiles of host and non-host plants for the management of pear psyllids in organic farming

Evaluation of a push-and-pull strategy using volatiles of host and non-host plants for the management of pear psyllids in organic farming

Glycerin‐based dispensers of fir oil reduce response of Asian citrus psyllid, Diaphorina citri, to citrus odours

Microbial Risks Caused by Livestock Excrement: Current Research Status and Prospects

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