Associação Entre a Incidência Do Levantamento De Índice Rápido De Aedes Aegypti (Liraa) E as Condições Climáticas Em Uberlândia, Minas Gerais, Brasil, Entre 2014 a 2016

Rodrigues, Elisângela de Azevedo Silva; Lima, Samuel do Carmo

doi:10.14393/rcg207245265

Cited by 9 publications

(6 citation statements)

References 1 publication

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“…The average monthly air temperature ranges from 20.9 to 23.1 °C. The average annual rainfall is 1500–1600 mm [ 65 ].…”

Section: Methodsmentioning

confidence: 99%

Control of Urochloa decumbens Using Glyphosate Applied by Remotely Piloted Aircraft and Ground Sprayer with Different Spray Nozzles

Lopes,

Cunha,

Nomelini

et al. 2024

Plants

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The use of remotely piloted aircraft (RPA) to spray pesticides currently occurs, but knowledge about this technology is lacking due to the different locations, targets, and products applied. The objective of this study was to evaluate the control of Urochloa decumbens with glyphosate applied using an RPA (10 L ha−1) equipped with different spray nozzles (XR 11001 and AirMix 11001). For the purpose of comparison, ground application was also performed (100 L ha−1). The deposition was evaluated by means of the quantification of a tracer by spectrophotometry, the droplet spectrum was evaluated with water-sensitive paper, and the control efficiency was evaluated based on visual measurements with percentage scores. Statistical process control was used to analyse the quality of the deposition in the area. The results showed that the application via RPA presented a greater amount of tracer on the leaves than the ground application, suggesting that the former is a good option for application, even providing a lower coverage and number of droplets per area. Both application methods were effective at controlling Urochloa decumbens. The nozzles showed potential for use in applications, with control efficiency higher than 84% from 21 days after application. The percentage of droplets smaller than 100 μm in the applications was less than 5%. No nonrandom behaviour was observed during deposition, indicating a high-quality process.

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“…The average monthly air temperature ranges from 20.9 to 23.1 °C. The average annual rainfall is 1500–1600 mm [ 65 ].…”

Section: Methodsmentioning

confidence: 99%

Control of Urochloa decumbens Using Glyphosate Applied by Remotely Piloted Aircraft and Ground Sprayer with Different Spray Nozzles

Lopes,

Cunha,

Nomelini

et al. 2024

Plants

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“…The rainy season in summer runs from November to April, and the dry season in winter runs from May to October. The average monthly air temperature in this area varies between 20.9 and 23.1 • C. The average annual precipitation is 1500-1600 mm [17].…”

Section: Experimental Sitementioning

confidence: 95%

“…The average monthly air temperature in this area varies b tween 20.9 and 23.1 °C. The average annual precipitation is 1500-1600 mm [17].…”

Section: Cultivarmentioning

confidence: 99%

Use of Unmanned Aerial Vehicle for Pesticide Application in Soybean Crop

Lopes,

Cunha,

Nomelini

2023

AgriEngineering

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The use of unmanned aerial vehicles (UAVs) for pesticide application has increased substantially. However, there is a lack of technical information regarding the optimal operational parameters. The aim of this study was to evaluate the quality of pesticide application on a soybean crop using a UAV employing different spray nozzles. The experiments were conducted using a completely randomized design with four treatments and eight repetitions. The trial was conducted in a soybean growing area during the soybean reproductive stage (1.1 m tall). The treatments included aerial application (rate: 10 L hm−2) using an Agras MG1-P UAV with XR 11001 (flat fan), AirMix 11001 (air-induction flat fan), and COAP 9001 (hollow cone spray) nozzles; for comparison, ground application (rate of 100 L hm−2) using a constant pressure knapsack sprayer with an XR 110015 (flat fan) nozzle was performed. The deposition was evaluated by quantifying a tracer (brilliant blue) using spectrophotometry and analyzing the droplet spectrum using water-sensitive paper. Furthermore, the application quality was investigated using statistical process control methodology. The best deposition performance was exhibited by the application via UAV using the COAP 9001 and AirMix 11001 nozzles. For all the treatments, the process remained under statistical control, indicating commendable adherence to quality standards. The aerial application provided greater penetration of the spray into the crop canopy. With the use of the UAV, the coverage on the water-sensitive paper was <1%; moreover, the AirMix 11001 and XR 110015 nozzles had the lowest drift potential.

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“…The average monthly air temperature ranges from 20.9 to 23.1 °C. The average annual rainfall is 1,500-1,600 mm (Rodrigues & Lima, 2019).…”

Section: Study Areamentioning

confidence: 99%

Evaluation of Remotely Piloted Aircraft for Agricultural Spraying in Corn Cultivation in the Brazilian Savannah

Lopes,

Cunha,

Nomelini

2023

JSD

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This study aimed to evaluate the quality of application using both RPA and ground techniques in corn cultivation using different spray nozzles in Brazilian savannah (Cerrado). The experiment was conducted using a completely randomized design, with four treatments and eight repetitions. The treatments involved two methods of application: aerial (RPA, 10 L ha-1) and ground (backpack sprayer, 100 L ha-1); and two types of nozzles: the standard flat fan nozzle XR 11001 and the air induction flat fan nozzle AirMix 11001. To study the quality of the application, the deposition was evaluated using a tracer and spectrophotometry, and the droplet spectrum, evaluated through the analysis of water-sensitive paper. Furthermore, a study on application quality was conducted using the Statistical Process Control methodology. The results demonstrated that with RPA, the deposition was higher, and the AirMix 11001 nozzle also stood out in this variable. No non-random behavior was observed in the deposition. Ground application showed the best performance in terms of target coverage and droplet density. The XR 11001 nozzle resulted in a higher droplet density. Overall, the XR11001 nozzle and the RPA application showed smaller volume median diameters (VMDs), indicating a higher potential for drift, which should be taken into account. Given the results obtained, it can be stated that the use of RPAs for agricultural spraying is viable for application.

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Associação Entre a Incidência Do Levantamento De Índice Rápido De Aedes Aegypti (Liraa) E as Condições Climáticas Em Uberlândia, Minas Gerais, Brasil, Entre 2014 a 2016

Cited by 9 publications

References 1 publication

Control of Urochloa decumbens Using Glyphosate Applied by Remotely Piloted Aircraft and Ground Sprayer with Different Spray Nozzles

Control of Urochloa decumbens Using Glyphosate Applied by Remotely Piloted Aircraft and Ground Sprayer with Different Spray Nozzles

Use of Unmanned Aerial Vehicle for Pesticide Application in Soybean Crop

Evaluation of Remotely Piloted Aircraft for Agricultural Spraying in Corn Cultivation in the Brazilian Savannah

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