Effect of formulations and adjuvants on the properties of acetamiprid solution and droplet deposition characteristics sprayed by UAV

Frontiers in Plant Science, Journal Year: 2024, Volume and Issue: 15

Published: Aug. 2, 2024

While the pesticide formulations are widely used for pest control, combined effects of these with adjuvants on droplet behavior, spraying characteristics, and control still need to be studied. To clarify their impact efficacy, six acetamiprid were examined. A series laboratory field experiments conducted analyze physicochemical properties, toxicity against cotton aphids, deposition drift. The results indicated that 5% micro-emulsion (ME) enhanced features effectiveness in compared other formulations. nongjianfei considerably efficiency all when added. addition selected improved performance certain properties such as viscosity surface tension led higher aphid mortality rates, demonstrating during present study. In experiments, combination effect exhibited a size, coverage, density within canopy. However, ME was found most effective followed by nongjianfei. Furthermore, adjuvant reduced drift provided better Overall, specific spray drift, increased deposition. These findings highlighted significance selecting appropriate solid foundation efficient through UAVs.

Language: Английский

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Dissipation patterns of trisiloxane ethoxylates in cucumber plants and field soils: Insights from different end-capping groups

Journal of Hazardous Materials, Journal Year: 2025, Volume and Issue: 487, P. 137167 - 137167

Published: Jan. 9, 2025

Language: Английский

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Effect of Vegetable Oil Adjuvant on Wetting, Drift, and Deposition of Pesticide Droplets from UAV Sprayers on Litchi Leaves

Agronomy, Journal Year: 2025, Volume and Issue: 15(2), P. 293 - 293

Published: Jan. 24, 2025

The spatial transportation of pesticide spray droplets and their deposition retention on plant leaf surfaces are critical factors contributing to loss. Adding adjuvants solutions improve wettability behavior can enhance the targeted efficiency pesticides sprayed by unmanned aerial vehicle (UAV) sprayers. In this study, Maifei(MF), a prevalent vegetable oil adjuvant, was selected analyze its effects physicochemical properties water 10% difenoconazole water-dispersible granules (D) wetting performance litchi leaves. changes in drift with or without MF were tested using UAV sprayer, DJI T40. results indicated that addition D significantly decreased surface tension (by 58.33% 23.10%, respectively), time 97.81% 90.95%, contact angle 40.95% 70.75% for adaxial abaxial leaves), achieving best at 1% addition. Moreover, during test, reduced cumulative rate (CDR) 48.10%). Finally, owing weakened risk improved leaves addition, droplet penetration canopy improved, demonstrating an increased density 38.17% middle layers 15.75% lower layers, corresponding coverage 59.49% 12.78%, respectively. Hence, interfacial solution leaves, reduce risk, promote deposition, thereby facilitating efficient transfer from

Language: Английский

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A Review of Drone Technology and Operation Processes in Agricultural Crop Spraying

Drones, Journal Year: 2024, Volume and Issue: 8(11), P. 674 - 674

Published: Nov. 14, 2024

Precision agriculture is revolutionizing the management and production of agricultural crops. The development new technologies in agriculture, such as unmanned aerial vehicles (UAVs), has proven to be an efficient option for spraying various compounds on UAVs significantly contribute enhancing precision agriculture. This review aims determine whether integrating advanced into drones crop enhances accuracy compared utilizing standard technologies. To achieve this, 100 articles published between 2019 2024 were selected analyzed. information was summarized five main areas: (1) improved with drone technologies, (2) operational parameters, (3) applications chemical natural drones, (4) evaluations control pest efficacy, (5) considerable limitations. Finally, considerations are presented advantages technology artificial intelligence (AI); practical effects reducing pesticides, which, some cases, have reached a reduction 30% recommended dose; future directions improving use presents technical scientific challenges maximization efficiency minimization agrochemical use.

Language: Английский

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Effect of Adjuvants on Physical–Chemical Properties, Droplet Size, and Drift Reduction Potential

Agriculture, Journal Year: 2024, Volume and Issue: 14(12), P. 2271 - 2271

Published: Dec. 11, 2024

Adjuvants alter the physical–chemical properties of pesticide formulations, influencing either droplet size or drift phenomenon. Selecting appropriate adjuvant and understanding its characteristics can contribute to efficiency Plant Protection Product (PPP) application. This reduces losses promotes better deposition on crop. The objective this study was evaluate effects four commercial adjuvants based mineral oil (Agefix Assist), vegetable (Aureo), polymer (BREAK-THRU) (surface tension, contact angle, volumetric mass, electrical conductivity, pH), size, drift, using pure water as control treatment (no adjuvant). Surface tension angle were measured with a DSA30 shape analyzer, while measurements determined through laser diffraction particle analyzer (Malvern Spraytec), single flat fan spray nozzle (AXI 110 03) operating at 0.3 MPa. Drift reduction potential evaluated inside wind tunnel an air speed 2 m s−1. All reduced surface compared water. median diameter (VMD) increased for Aureo, Assist, Agefix, generating coarse, medium, medium droplets, respectively, BREAK-THRU formed fine similar those generated by Aureo had greatest in Relative Span Factor (RSF), 30.3%. Overall, Agefix significantly percentage droplets <100 µm >500 µm. achieved all adjuvants, showing highest 59.35%. confirms that selecting improve PPP application promote environmental sustainability agricultural practices.

Language: Английский

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Effects of Tank-Mix Adjuvants on Spray Performance Under Downwash Airflow Fields Using an Indoor Simulated UASS Spraying Platform

Drones, Journal Year: 2024, Volume and Issue: 9(1), P. 6 - 6

Published: Dec. 25, 2024

The unmanned aerial spraying system (UASS) has emerged as an advanced tool in precision agriculture for applying plant protection products (PPP). addition of tank-mix adjuvants to PPP solutions is a common practice enhance spray performance. However, the effects these on performance under downwash airflow fields generated by UASS rotors remain unclear. This study aimed evaluate impacts adjuvant (AGE852B, AGE825, AGE809, and CCL846) droplet size spectrum deposition distribution with various rotor speeds layouts, using indoor simulated single-rotor/multi-rotor platform. results showed that adding AGE809 AGE825 made much better flat fan nozzle LU110-015 field. volume fractions droplets smaller than 100 µm (V100) went down 48.15% 21.04%, respectively. Furthermore, speed was found have significant impact median diameter, relative span, V100 (p < 0.05). field observed increase vertical velocity, achieving more uniform central area. These show choosing right making most operational parameters can improve deposition, coverage uniformity, drift reduction. gives us useful information applications efficient effective agriculture.

Language: Английский

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