Results 31 to 40 of about 172,155 (223)

Persistent disruption of interspecific competition after ultra-low esfenvalerate exposure [PDF]

, 2023
Field and mesocosm studies repeatedly show that higher tier process reduce the predictive accuracy of toxicity evaluation and consequently their value for pesticide risk assessment. Therefore, understanding the influence of ecological complexity on toxicant effects is crucial to improve realism of aquatic risk assessment.
arxiv   +1 more source

DropLeaf: a precision farming smartphone application for measuring pesticide spraying methods [PDF]

, 2020
Pesticide application has been heavily used in the cultivation of major crops, contributing to the increase of crop production over the past decades. However, their appropriate use and calibration of machines rely upon evaluation methodologies that can precisely estimate how well the pesticides' spraying covered the crops.
arxiv   +1 more source

Design, synthesis, and biological activity of novel 1,2,4-oxadiazole derivatives

BMC Chemistry, 2020
Background Plant diseases seriously threaten food security, it is urgent to discover efficient and low-risk chemical pesticides. 1,2,4-Oxadiazole derivatives exhibit broad spectrum of agricultural biological activities.
Lingzhi Zhu, Huanan Zeng, Dan Liu, Yun Fu, Qiong Wu, Baoan Song, Xiuhai Gan   +6 more
doaj   +1 more source

Synthesis and biological activity of myricetin derivatives containing 1,3,4-thiadiazole scaffold

Chemistry Central Journal, 2017
Background Myricetin and 1,3,4-thiadiazole derivatives were reported to exhibit favorable antiviral and antibacterial activities. Aiming to discover novel myricetin analogues with potent activities, a series of novel myricetin derivatives containing 1,3 ...
Xinmin Zhong, Xiaobin Wang, Lijuan Chen, Xianghui Ruan, Qin Li, Juping Zhang, Zhuo Chen, Wei Xue   +7 more
doaj   +1 more source

Chromosome-level genome assembly of Cyperus iria, an aggressive weed of rice

Scientific Data
Cyperus iria is an aggressive weed of rice throughout the world. Until now, the reference genome of C. iria has not been published. Here, we completed the chromosome-level genome assembly of C. iria based on Illumina, PacBio and Hi-C reads. The assembled
Siyu Yang, Qingyi Cao, Zexin Wen, Aoxue Wang, Shiyao Shi, Zhuoying Liang, Shuying Li, Wenjun Gui, Jinwen Zhu   +8 more
doaj   +1 more source

Design, synthesis, antiviral bioactivities and interaction mechanisms of penta-1,4-diene-3-one oxime ether derivatives containing a quinazolin-4(3H)-one scaffold

BMC Chemistry, 2019
Background penta-1,4-diene-3-one oxime ether and quinazolin-4(3H)-one derivatives possess favorable agricultural activities. Aiming to discover novel molecules with highly-efficient agricultural activities, a series of penta-1,4-diene-3-one oxime ether ...
Lijuan Chen, Xiaobin Wang, Xu Tang, Rongjiao Xia, Tao Guo, Cheng Zhang, Xiangyang Li, Wei Xue   +7 more
doaj   +1 more source

Rapid Residue Analysis of Phthalanilic Acid in Cereals and Oilseed Rape by High-Performance Liquid Chromatography Coupled to Tandem Mass Spectrometry

Journal of Chemistry, 2022
Phthalanilic acid is widely used in wheat and oilseed rape fields in China, but there is no analysis method to detect its residues in wheat and oilseed rape substrates.
Aijuan Zhang, Li Zhou, Miao Yu, Yizhi Feng, Yanli Bian, Jinju Pan, Bojun Zuo, Lin Liang   +7 more
doaj   +1 more source

Pesticides and bees [PDF]

EMBO reports, 2013
In May 2013, the European Commission (EC) adopted a 2‐year restriction on the use of three neonicotinoid pesticides – clothianidin and imidacloprid, both produced by Bayer, and thiametoxam, produced by Syngenta – on crops that attract bees and other pollinators to protect declining populations of pollinating bees.
Maxim, Laura, Arnold, Gérard
openaire   +4 more sources

Suicide by pesticide ingestion in Nepal and the impact of pesticide regulation

BMC Public Health, 2021
Background Nepal recorded 5754 suicides in 2018–19 - a high number for a relatively small country. Over 24% of these suicides were by poisoning, most by ingestion of highly concentrated agricultural pesticides.
Leah Utyasheva, Dilli Sharma, Rakesh Ghimire, Ayanthi Karunarathne, Gael Robertson, Michael Eddleston   +5 more
doaj   +1 more source

An Innovative Chiral UPLC-MS/MS Method for Enantioselective Determination and Dissipation in Soil of Fenpropidin Enantiomers

Molecules, 2022
As a chiral piperidine fungicide, fenpropidin has been widely used to control plant diseases. However, there are rare studies that have investigated fenpropidin at the enantiomer level.
Rui Li, Yanqing Zhang, Yanhong Li, Zihao Chen, Zhen Wang, Minghua Wang   +5 more
doaj   +1 more source