Lignin-based compounds for the microencapsulation of neem extract for the control of Diabrotica speciosa (Coleoptera: Chrysomelidae) larvae on maize roots

Costa, Eduardo Neves; Forim, Moacir Rossi; Costa, Eveline Soares; Nogueira, Lafayette; Moraes, Renata Mendonça; Júnior, Arlindo Leal Boiça

doi:10.1007/s12600-021-00915-x

Cited by 5 publications

(4 citation statements)

References 46 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…However, only recently, it has been established that nanoscale fabrication of lignin enhances its stability at extreme pH ranges and under UV light as compared to its bulk-scale counterparts. The development of biobased and biodegradable nano- and microcarriers for agriculture was the focus of some recent studies. − Costa et al evaluated the effect of different doses (0.3–3.0 μg) of neem active compound (azadirachtin) in distinct lignin-based microencapsulated formulations on the development and survival of Diabrotica speciosa (Germar) larvae on maize ( Zea mays L). The neem tree, Azadirachta indica A. Juss (Meliaceae), is an economically important cosmopolitan plant native to Burma and India that has shown insecticidal activity against many different species of insects including Diabrotica virgifera virgifera .…”

Section: Resultsmentioning

confidence: 99%

Micro- and Nanocarriers for Encapsulation of Biological Plant Protection Agents: A Systematic Literature Review

Pinto¹,

Silva²,

Siquenique³

et al. 2022

ACS Agric. Sci. Technol.

View full text Add to dashboard Cite

Biological plant protection agents (BPPAs) are proposed as sustainable alternatives to chemical-based pesticides to face threats caused by pests and diseases emerging due to climate change. The present Review was conducted to identify the most promising materials to encapsulate and deliver BPPAs for pest and disease control with improved efficacy, increased systemic activity, and lower environmental impact. Searches on Scopus and Web of Science databases from inception up to June 30, 2022, revealed a total of 98 reports that met the eligibility criteria, 45% of which described the use of (1) naturally sourced polymers, such as chitosan (36%), alginate (23%) and plant-based proteins (16%); (2) synthetic polymers (35%); (3) inorganic materials (19%); and (4) microorganisms (1%). The review confirmed that micro- and nanoencapsulation of BPPAs using carrier materials of marine/terrestrial/synthetic sources should provide the agricultural community access to safer and more sustainable plant protection products.

show abstract

Section: Resultsmentioning

confidence: 99%

Micro- and Nanocarriers for Encapsulation of Biological Plant Protection Agents: A Systematic Literature Review

Pinto¹,

Silva²,

Siquenique³

et al. 2022

ACS Agric. Sci. Technol.

View full text Add to dashboard Cite

show abstract

“…The neem extract microencapsulation has been effective for the biocontrol of insects. Costa et al [ 17 ] evaluated the microencapsulation of neem using lignin obtained from sugarcane bagasse. The results evidenced that the microcapsules delayed the larva to the adult period and reduced the weight of the adults reducing the population of insects.…”

Section: Discussionmentioning

confidence: 99%

“…The uses of encapsulation agents that wrap the components of the plant extracts are a current strategy for its preservation [ 16 ]. Many publications have demonstrated the efficiency of encapsulation processes in the preservation of neem compounds [ 17 , 18 ]. The encapsulation methods have involved the development of micrometric and nanometric particle sizes [ 14 , 19 , 20 ].…”

Section: Introductionmentioning

confidence: 99%

The Insecticidal Activity of Azadirachta indica Leaf Extract: Optimization of the Microencapsulation Process by Complex Coacervation

Michel

Aguilar‐Zárate

Rojas

et al. 2023

Plants

View full text Add to dashboard Cite

The objective of the present work was to optimize the microencapsulation conditions of neem (Azadirachta indica A. Juss) leaf extracts for the biocontrol of Tenebrio molitor. The complex coacervation method was used for the encapsulation of the extracts. The independent factors considered were the pH (3, 6, and 9), pectin (4, 6, and 8% w/v), and whey protein isolate (WPI) (0.50, 0.75, and 1.00% w/v). The Taguchi L9 (33) orthogonal array was used as the experimental matrix. The response variable was the mortality of T. molitor after 48 h. The nine treatments were applied by immersion of the insects for 10 s. The statistical analysis revealed that the most influential factor on the microencapsulation was the pH (73% of influence), followed by the pectin and WPI (15% and 7% influence, respectively). The software predicted that the optimal microencapsulation conditions were pH 3, pectin 6% w/v, and WPI 1% w/v. The signal-to-noise (S/N) ratio was predicted as 21.57. The experimental validation of the optimal conditions allowed us to obtain an S/N ratio of 18.54, equivalent to a T. molitor mortality of 85 ± 10.49%. The microcapsules had a diameter ranging from 1–5 μm. The microencapsulation by complex coacervation of neem leaf extract is an alternative for the preservation of insecticidal compounds extracted from neem leaves.

show abstract

“…To overcome this, nanobiotechnology provides great potential, as it involves the production of unique nano formulations that could enhance the physicochemical stability, degradability, and effectiveness of natural products (Perlatti et al, 2013). According to Costa et. al.…”

Section: Utilization Of Neem In Agriculturementioning

confidence: 99%

Neem (Azadirachta indica A. Juss; Meliaceae) as the source for plant-based pesticides as an effective and sustainable biocontrol alternative

Wahjono,

Suhatman,

Wihermanto

et al. 2024

J. Bioresour. Environ. Sci.

View full text Add to dashboard Cite

The neem tree has strengths such as effective and environmentally friendly active compounds, as well as the ability to improve the quality and productivity of plants organically. However, the use of botanical pesticides has several challenges, such as potentially lower effectiveness compared to chemical insecticides, high production costs, and requiring specific knowledge in formulation and application. Botanical pesticides are readily available tools for insect pest management and are eco-friendly. The research results show that a neem formula at a concentration of 20 ml.l-1 water can cause mortality of brown planthopper is 48.75 - 70%, while mortality in the synthetic insecticide (positive control) at a concentration of 2 ml.l-1 water (as recommended) resulted in 45% mortality. It is obvious that there is a need to develop biological control as alternatives for eco-friendly and sustainable for pests’ control in insect’s pest management strategies. This research study has both qualitative and quantitative approach, data collection strategies were desk review of information and will be based on empirical data and literature. For the desk study, relevant internet web pages were browsed to have an overview of the key concepts of the research issue, problem of pests and diseases control and benefit of neem tree as botanical pesticides. Nevertheless, the use of botanical pesticides can provide long-term benefits to the environment and human health and support more sustainable agriculture. There is a great opportunity for the development of more effective and affordable technology for botanical pesticide production for farmers, but there are also threats such as strong competition from synthetic pesticides. The objective this study aims to determine the potential of neem (Azadirachta indica A.Juss) as a plant producing botanical pesticides as an effective and sustainable biological control alternative.

show abstract

Lignin-based compounds for the microencapsulation of neem extract for the control of Diabrotica speciosa (Coleoptera: Chrysomelidae) larvae on maize roots

Cited by 5 publications

References 46 publications

Micro- and Nanocarriers for Encapsulation of Biological Plant Protection Agents: A Systematic Literature Review

Micro- and Nanocarriers for Encapsulation of Biological Plant Protection Agents: A Systematic Literature Review

The Insecticidal Activity of Azadirachta indica Leaf Extract: Optimization of the Microencapsulation Process by Complex Coacervation

Neem (Azadirachta indica A. Juss; Meliaceae) as the source for plant-based pesticides as an effective and sustainable biocontrol alternative

Contact Info

Product

Resources

About