Floating chitosan-alginate microspheres loaded with chlorantraniliprole effectively control Chilo suppressalis (Walker) and Sesamia inferens (Walker) in rice fields

Yang, Liupeng; Wang, Shiying; Wang, Ruifei; Zheng, Qun; Ma, Qianli; Huang, Suqing; Chen, Jianjun; Zhang, Zhixiang

doi:10.1016/j.scitotenv.2021.147088

Cited by 14 publications

(9 citation statements)

References 42 publications

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“…These results indicated that the synthesized DMM@HMS‐SS‐COS was more stable. Photolysis is one of the main causes of degradation of pesticide active ingredients under field conditions 20 ; therefore, the UV‐shielding performance of DMM@HMS‐SS‐COS needed to be tested. As shown in Fig.…”

Section: Resultsmentioning

confidence: 99%

“…Despite its beneficial effects in disease control, DMM shows toxicity to a wide range of organisms, including soil and water microbial communities, while showing moderate toxicity to fish and invertebrates and exhibiting sublethal effects 17–19 . Frequent and heavy use of pesticides increases chemical residues in vegetables and endangers human health 20 . It also increases the resistance of pathogenic bacteria to these agents, making it more difficult and expensive to provide continuous control without poisoning certain beneficial organisms (e.g., fish, earthworms) and negatively affecting the healthy development of cucurbit crops 21 .…”

Section: Introductionmentioning

confidence: 99%

“…[17][18][19] Frequent and heavy use of pesticides increases chemical residues in vegetables and endangers human health. 20 It also increases the resistance of pathogenic bacteria to these agents, making it more difficult and expensive to provide continuous control without poisoning certain beneficial organisms (e.g., fish, earthworms) and negatively affecting the healthy development of cucurbit crops. 21 Therefore, there is an urgent need for researchers to find a safe and effective method to manage this disease.…”

Section: Introductionmentioning

confidence: 99%

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A pH‐ and redox‐stimulated responsive hollow mesoporous silica for triggered delivery of fungicides to control downy mildew of Luffa cylindrica

Yang

Chen

Yan

et al. 2022

Pest Management Science

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BACKGROUND: Downy mildew, a devastating disease of cucurbitaceous crops caused by Pseudoperonospora cubensis. Although a variety of fungicides are used to control downy mildew, choosing an effective product can be challenging. Environmental stimulus-responsive pesticide delivery systems have great potential to improve the effectiveness of disease and pest control and reduce the impact on environmentally beneficial organisms. RESULTS: In this work, a disulfide bond (SS)-modified and chitosan oligosaccharide (COS)-capped hollow mesoporous silica (HMS) pesticide delivery system was synthesized using a hard template method for the control of downy mildew in cucurbit crops. The synthesized nanoparticles were loaded with dimethomorph (DMM)

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Section: Resultsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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A pH‐ and redox‐stimulated responsive hollow mesoporous silica for triggered delivery of fungicides to control downy mildew of Luffa cylindrica

Yang

Chen

Yan

et al. 2022

Pest Management Science

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“…The low utilization and nontargeting nature have meant that these formulations have been used repeatedly and excessively, which has caused a series of problems such as pesticide resistance, 14,15 and increased water and soil pollution. 14,16 Recently, double emulsion method-based microcapsules, 17 chitosan-alginate floating hydrogel microspheres, 18 enzyme-triggered functionalized hollow mesoporous silica 5 and metal-organic framework nanohybrid material (MIL-101(Fe) @silica) 6 have been developed to load the CAP to remedy these problems.…”

Section: Introductionmentioning

confidence: 99%

Coprecipitation‐based synchronous chlorantraniliprole encapsulation with chitosan: carrier–pesticide interactions and release behavior

Wang

Kong

et al. 2023

Pest Management Science

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BACKGROUNDControlled‐release pesticide formulations have emerged as a promising approach towards sustainable pest control. Herein, an environment‐friendly formulation of insecticide chlorantraniliprole (CAP) was fabricated through a simple approach of coprecipitation‐based synchronous encapsulation by chitosan (CTS), with carrier–pesticide interaction mechanism and release behavior investigated.RESULTSThe resulting CAP/CTS controlled‐release formulation (CCF) showed a good loading content of 28.1% and a high encapsulation efficiency of 75.6%. Instrument determination in combination with molecular dynamics (MD) simulations displayed that the primary interactions between CAP and CTS were physical adsorption and complicated hydrogen (H)‐bonds, which formed dominantly between NH in amides [or nitrogen (N) in ring structures] of CAP and hydroxyl (or amino) groups of CTS, as well as oxygen (O) in CAP with hydrogen in CTS or H2O molecules. The in vitro release tests exhibited obvious pH/temperature sensitivity, with release dynamics following the first‐order or Ritger–Peppas model. As the temperature increased, the CAP release process of the Ritger–Peppas model changed from Case‐II to anomalous transport, and ultimately to a Fickian diffusion mechanism. The control effect against Plutella xylostella larvae also was evaluated by toxicity tests, where comparable efficacy of CCF to the commercial suspension concentrate was obtained.CONCLUSIONThe innovative, easy‐to‐prepare CCF can be used as a formulation with obvious pH/temperature sensitivity and good efficacy on target pests. This work contributes to the development of efficient and safe pesticide delivery systems, especially using the natural polymer materials as carriers. © 2023 Society of Chemical Industry.

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“…Chilo suppressalis (Walker) (Lepidoptera: Crambidae) is one of China’s most damaging rice pests, with climate change, cropping systems and cultivar changes all contributing to increasingly frequent outbreaks [ 1 , 2 , 3 ]. Additionally, extensive pesticide use and improper application practices have been significant contributors to C. suppressalis resistance, resulting in severe economic losses due to outbreaks in rice-growing areas [ 4 , 5 ].…”

Section: Introductionmentioning

confidence: 99%

Transcriptomic Analysis Reveals the Detoxification Mechanism of Chilo suppressalis in Response to the Novel Pesticide Cyproflanilide

Zhou

Qiu

et al. 2023

IJMS

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Chilo suppressalis is one of the most damaging rice pests in China’s rice-growing regions. Chemical pesticides are the primary method for pest control; the excessive use of insecticides has resulted in pesticide resistance. C. suppressalis is highly susceptible to cyproflanilide, a novel pesticide with high efficacy. However, the acute toxicity and detoxification mechanisms remain unclear. We carried out a bioassay experiment with C. suppressalis larvae and found that the LD10, LD30 and LD50 of cyproflanilide for 3rd instar larvae was 1.7 ng/per larvae, 6.62 ng/per larvae and 16.92 ng/per larvae, respectively. Moreover, our field trial results showed that cyproflanilide had a 91.24% control efficiency against C. suppressalis. We investigated the effect of cyproflanilide (LD30) treatment on the transcriptome profiles of C. suppressalis larvae and found that 483 genes were up-regulated and 305 genes were down-regulated in response to cyproflanilide exposure, with significantly higher CYP4G90 and CYP4AU10 expression in the treatment group. The RNA interference knockdown of CYP4G90 and CYP4AU10 increased mortality by 20% and 18%, respectively, compared to the control. Our results indicate that cyproflanilide has effective insecticidal toxicological activity, and that the CYP4G90 and CYP4AU10 genes are involved in detoxification metabolism. These findings provide an insight into the toxicological basis of cyproflanilide and the means to develop efficient resistance management tools for C. suppressalis.

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Floating chitosan-alginate microspheres loaded with chlorantraniliprole effectively control Chilo suppressalis (Walker) and Sesamia inferens (Walker) in rice fields

Cited by 14 publications

References 42 publications

A pH‐ and redox‐stimulated responsive hollow mesoporous silica for triggered delivery of fungicides to control downy mildew of Luffa cylindrica

A pH‐ and redox‐stimulated responsive hollow mesoporous silica for triggered delivery of fungicides to control downy mildew of Luffa cylindrica

Coprecipitation‐based synchronous chlorantraniliprole encapsulation with chitosan: carrier–pesticide interactions and release behavior

Transcriptomic Analysis Reveals the Detoxification Mechanism of Chilo suppressalis in Response to the Novel Pesticide Cyproflanilide

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