Results 31 to 40 of about 123,592 (340)
Agriculture, 2022 The use of unmanned aerial spray systems (UASS) has increased owing to their many advantages. However, studies related to a standardized method to evaluate the spray performance of UASS are lacking.
Chun-Gu Lee +2 more
doaj +1 more source
Factors Affecting Droplet Loss behind Canopies with Air-Assisted Sprayers Used for Fruit Trees
Agronomy, 2023 Air-assisted sprayers are widely employed in orchards, but inappropriate spray parameters can lead to large droplet losses, pesticide waste, and environmental pollution.
Shijie Jiang +5 more
doaj +1 more source
Influence of Spray Volume on Spray Deposition and Coverage within Nursery Trees [PDF]
Journal of Environmental Horticulture, 2008 Abstract Information on better utilizing airblast sprayers to achieve high pesticide spray application efficiency in nursery tree production is needed. Foliar spray deposition and coverage at different heights inside crabapple tree canopies were investigated for a conventional airblast sprayer operating at four different application rates ...
H. Zhu +4 more
openaire +1 more source
Performance of Drift-Reducing Nozzles in Controlling Small Weed Seedlings with Contact Herbicides
Agronomy, 2023 In many EU countries, spray applications should comply with increasingly stringent requirements regarding the drift reduction class of spray nozzles. Many farmers fear that the use of drift-reducing nozzles producing coarse droplet spectra may compromise
Benny De Cauwer +5 more
doaj +1 more source
Frontiers in Plant Science, 2023 Plant protection drone spraying technology is widely used to prevent and control crop diseases and pests due to its advantages of being unaffected by crop growth patterns and terrain restrictions, high operational efficiency, and low labor requirements ...
Yu Yan +16 more
doaj +1 more source
Estimating the impact of city-wide Aedes aegypti population control: An observational study in Iquitos, Peru. [PDF]
, 2019 During the last 50 years, the geographic range of the mosquito Aedes aegypti has increased dramatically, in parallel with a sharp increase in the disease burden from the viruses it transmits, including Zika, chikungunya, and dengue.
Astete, Helvio +12 more
core +2 more sources
The Effect of Operational Parameters of Plant Protection Unmanned Aerial Vehicle on the Droplet Deposition Distribution in Tea Canopy [PDF]
Chaye kexueIn order to improve the droplet deposition distribution and enhance the control effect, the operational parameters (spray droplet size, flight height, flight speed and spray volume) of a four-multirotor plant protection unmanned aerial vehicle (EA-30X ...
WU Mengtao, LI Zhaoqun, YANG Yuzhou, MENG Xiangfei, LUO Zongxiu, BIAN Lei, XIU Chunli, FU Nanxia, CHEN Zongmao, WANG Guochang, CAI Xiaoming
doaj +1 more source
Validating Spray Coverage Rate Using Liquid Mass on a Spray Card
Transactions of the ASABE, 2018 Abstract. Validation of agricultural sprayers is important for quantifying as-applied coverage rates under field conditions. The complexity of modern sprayer control systems presents a challenge for precise field validation due to the use of nozzle control technologies, such as pulse width modulation, to meter chemical flow rates at individual nozzles.
Michael P. Sama +2 more
openaire +2 more sources
Emulsions stabilised by whey protein microgel particles: Towards food-grade Pickering emulsions [PDF]
, 2014 We have investigated a new class of food-grade particles, whey protein microgels, as stabilisers of triglyceride-water emulsions. The sub-micron particles stabilized oil-in-water emulsions at all pH with and without salt.
Binks, Bernard P. +4 more
core +1 more source
HortScience, 2020 The western flower thrips, Frankliniella occidentalis (Pergande) (Thysanoptera: Thripidae), is a major insect pest of greenhouse-grown horticultural crops.
Devin L. Radosevich +2 more
doaj +1 more source