Results 31 to 40 of about 1,280,051 (301)

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, Wenwei Li, Shenghui Yang, Yongjun Zheng, Yu Tan, Jiawei Xu   +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, R.H. Zondag, R.C. Derksen, M. Reding, C.R. Krause   +4 more
openaire   +1 more source

Evaluation of the Effects of Airflow Distribution Patterns on Deposit Coverage and Spray Penetration in Multi-Unit Air-Assisted Sprayer

Agronomy, 2022
Efficient utilization is a pre-requisite for pesticide reduction, and appropriate airflow distribution pattern plays a key role in enhancing the effectiveness of pesticide application by air-assisted orchard sprayers, yet the mechanism of this is unclear.
Tian Li, Peng-xiang Qi, Zhichong Wang, Shaoqing Xu, Zhan Huang, Leng Han, Xiongkui He   +6 more
semanticscholar   +1 more source

Formulation of a Composite Nasal Spray Enabling Enhanced Surface Coverage and Prophylaxis of SARS‐COV‐2

Advances in Materials, 2021
Airborne pathogens pose high risks in terms of both contraction and transmission within the respiratory pathways, particularly the nasal region. However, there is little in the way of adequate intervention that can protect an individual or prevent ...
R. Moakes, S. Davies, Z. Stamataki, L. Grover   +3 more
semanticscholar   +1 more source

Optimizing Caneberry Spray Coverage for Drosophila suzukii (Diptera: Drosophilidae) Management on Diversified Fruit Farms

Journal of Economic Entomology, 2020
Spray coverage may influence the efficacy of insecticides targeting the invasive vinegar fly Drosophila suzukii (Matsumura), a primary pest of raspberries and blackberries.
M. Lewis, K. Hamby
semanticscholar   +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, Ilke De Meuter, Sander De Ryck, Donald Dekeyser, Ingrid Zwertvaegher, David Nuyttens   +5 more
doaj   +1 more source

Evaluation of the deposition and distribution of spray droplets in citrus orchards by plant protection drones

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, Yu Yan, Yubin Lan, Yubin Lan, Guobin Wang, Guobin Wang, Mujahid Hussain, Mujahid Hussain, Huizheng Wang, Huizheng Wang, Xiaoqing Yu, Changfeng Shan, Changfeng Shan, Baoju Wang, Baoju Wang, Cancan Song, Cancan Song   +16 more
doaj   +1 more source

Mosquito Abundance, Bed net Coverage and Other Factors Associated with Variations in Sporozoite Infectivity Rates in Four Villages of Rural Tanzania. [PDF]

, 2008
Entomological surveys are of great importance in decision-making processes regarding malaria control strategies because they help to identify associations between vector abundance both species-specific ecology and disease intervention factors associated ...
A Mahande, A Mnzava, A Smits, A Tami, AM Mahande, Aneth M Mahande, Asanterabi Lowassa, B Greenwood, C Lengeler, C Roper, CA Maxwell, CA Maxwell, CA Maxwell, Charles Assenga, Charles P Massenga, CM Mutero, D Fontenille, E Worrall, EA Temu, Edwin M Nyale, Eliningaya J Kweka, Ester E Lyatuu, FH Msuya, Franklin W Mosha, GF Killeen, J Gallup, J Rugemalila, J Sachs, JA Alaii, JA Alaii, JA Scott, JB Duchemin, JC Beier, JC Beier, JD Charlwood, JD Lines, K Mugittu, L Barat, LL Koekemoer, M Coluzzi, M Coosemans, MH Hodjati, Ministry of Health, MK Aikins, MK Aikins, R Ndyomugyenyi, RA Wirtz, RS Bray, RW Snow, SI Hay, SM Magesa, Stephen B Mwakalinga, TM Gillies, W Takken, Watoky MM Nkya, World Health Organization   +55 more
core   +4 more sources

The Effect of Sample Height on Spray Coverage in Mature Pecan Trees. [PDF]

Plant Disease, 2015
Pecan scab (caused by Fusicladium effusum) is the most damaging disease of pecan in the southeastern United States. Large air-blast sprayers for orchards are used to apply fungicide to control the disease but little quantitative information exists on the spray coverage achieved in the canopy of these trees.
C. Bock, M. Hotchkiss, T. Cottrell, B. Wood   +3 more
semanticscholar   +3 more sources

The Effect of Operational Parameters of Plant Protection Unmanned Aerial Vehicle on the Droplet Deposition Distribution in Tea Canopy [PDF]

Chaye kexue
In 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