WordNet

relating to or indicating a remainder; "residual quantity" (同)residuary
(often plural) a payment that is made to a performer or writer or director of a television show or commercial that is paid for every repeat showing; "he could retire on his residuals"
a chemical used to kill pests (as rodents or insects)

PrepTutorEJDIC

残りの,残留の / 残余
殺虫剤

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1. 流行地域におけるマラリアの疫学、予防、および管理 epidemiology prevention and control of malaria in endemic areas
2. ヒアリの昆虫学および管理 entomology and control of imported fire ants
3. 南京虫 bedbugs
4. アタマジラミ症 pediculosis capitis
5. 有機食品と小児 organic foods and children

English Journal

Residues, dissipation and safety evaluation of chromafenozide in strawberry under open field conditions.

Malhat F1, Badawy HM2, Barakat DA2, Saber AN3.Author information 1Pesticide Residues and Environmental Pollution Department, Central Agricultural Pesticide Laboratory, Agricultural Research Center, Dokki, Giza 12618, Egypt. Electronic address: farag_malhat@yahoo.com.2Department of Economic Entomology and Pesticides, Faculty of Agriculture, Cairo University, Egypt.3Pesticide Residues and Environmental Pollution Department, Central Agricultural Pesticide Laboratory, Agricultural Research Center, Dokki, Giza 12618, Egypt.AbstractThe dissipation and residual levels of new generation insecticide chromafenozide in strawberries under field conditions were studied using HPLC-DAD after QuEChERS extraction. The method was validated using blank samples spiked at three levels and the results showed that recoveries ranged from 99% to 110%. The intra- and inter-day relative standard deviations were less than 7.5% and 9.2%, respectively. Estimated limit of detection and limit of quantification for chromafenozide were 0.003 and 0.01 mg/kg, respectively. The residues of chromafenozide were found to dissipate following first order kinetics and its half-life ranged from 3.53 to 4.07 days. The results showed that the use of chromafenozide at recommended dose does not pose any hazards to consumers. These results can be utilised in formulating spray schedules and safety evaluation for chromafenozide insecticide in strawberry.
Food chemistry.Food Chem.2014 Jun 1;152:18-22. doi: 10.1016/j.foodchem.2013.11.110. Epub 2013 Nov 27.
The dissipation and residual levels of new generation insecticide chromafenozide in strawberries under field conditions were studied using HPLC-DAD after QuEChERS extraction. The method was validated using blank samples spiked at three levels and the results showed that recoveries ranged from 99% to
PMID 24444901

Bioremediation of fipronil by a Bacillus firmus isolate from soil.

Mandal K1, Singh B2, Jariyal M3, Gupta VK4.Author information 1Pesticide Residue Analysis Laboratory, Department of Entomology, Punjab Agricultural University, Ludhiana 141004, Punjab, India. Electronic address: kousik11@gmail.com.2Pesticide Residue Analysis Laboratory, Department of Entomology, Punjab Agricultural University, Ludhiana 141004, Punjab, India.3Department of Microbiology, Punjab Agricultural University, Ludhiana 141004, Punjab, India.4Insect Molecular Biology Laboratory, Department of Entomology, Punjab Agricultural University, Ludhiana 141004, Punjab, India.AbstractPersistence of fipronil, a new molecule in extensive use against various insect pests is causing serious problems to the environment. Bacillus firmus was isolated by selective enrichment from soil samples collected from sugar fields with known history of pesticide usage and evaluated for metabolization of fipronil in clay loam soil. Soil samples in 50g aliquotes were fortified with fipronil @ 0.50-1.50mgkg(-1) and inoculated with B. firmus cells (45×10(7)CFUmL(-1)) and incubated at 25°C. Each sample in triplicates was drawn periodically up to 56d and residual fipronil contents analyzed by gas liquid chromatograph. Fipronil residues were not detected after 35d at lower doses of fipronil (@ 0.50, 0.75 and 1.00mgkg(-1)). However, at higher doses (@ 1.25 and 1.50mgkg(-1)) than this total metabolization of fipronil could be observed after 35 and 42d, respectively. Thus whereas, B. firmus proved its potential in efficient metabolization of fipronil, the period required for the same was dose dependent. Amongst various metabolites of fipronil degradation, fipronil sulfide was found to be the main metabolite followed by fipronil sulfone and fipronil amide. Though, desulfinyl metabolite earlier reported as one of the main metabolite of fipronil degradation, the existence of the same was not detected in any of the treatment.
Chemosphere.Chemosphere.2014 Apr;101:55-60. doi: 10.1016/j.chemosphere.2013.11.043. Epub 2013 Dec 12.
Persistence of fipronil, a new molecule in extensive use against various insect pests is causing serious problems to the environment. Bacillus firmus was isolated by selective enrichment from soil samples collected from sugar fields with known history of pesticide usage and evaluated for metabolizat
PMID 24332735

Assessing the impact of irrigation treatments on thiram residual trends: correspondence with numerical modelling and field-scale experiments.

Gupta M1, Garg NK, Joshi H, Sharma MP.Author information 1Department of Civil Engineering, Indian Institute of Technology Delhi, New Delhi, 110016, India, manikagup@gmail.com.AbstractThe present study was undertaken to study the trends of transport of thiram, a dithiocarbamate pesticide, at different time and depth in the fields under real field conditions for wheat crop. Numerical simulations were carried out by solving the coupled soil-water content movement and mass transport equations using HYDRUS- 1D. The supplementary data used for paramaterization of HYDRUS-1D comprise of irrigation treatments, climatic conditions, and soil characteristics. Results focus on the effects and influence of irrigation treatments on pesticide persistence and mobility. Modelling results were in good agreement with the experimentally determined thiram concentrations. Application of the model to measured field data of thiram movement indicates that the modelling approach can provide reliable and useful estimates of the mass flux of water and non-volatile pesticide in vadose zone. For policy-makers and planners, some regulation strategies are suggested for controlling inappropriate pesticide application under deficit irrigation or rain-fed conditions.
Environmental monitoring and assessment.Environ Monit Assess.2014 Mar;186(3):1639-54. doi: 10.1007/s10661-013-3480-0. Epub 2013 Oct 31.
The present study was undertaken to study the trends of transport of thiram, a dithiocarbamate pesticide, at different time and depth in the fields under real field conditions for wheat crop. Numerical simulations were carried out by solving the coupled soil-water content movement and mass transport
PMID 24174119

Japanese Journal

Development and Validation of an Analytical Method for Simultaneous Quantitation of Organic Volatile Impurities in Technical-Grade Active Ingredients of Pesticides and Agrochemicals by Headspace Gas Chromatography

KAZUSAKI Masato,OKUMURA Satoshi,KITA Kozo,MUKUMOTO Makiko,OKAMOTO Masahiko
CHROMATOGRAPHY advpub(0), 2015
… A simple, rapid, accurate, precise headspace gas chromatographic (HS-GC) method was developed and validated for simultaneous quantitation of organic volatile impurities (residual solvents) in technical-grade active ingredients (TGAIs) of pesticides and agrochemicals. … The proposed method was successfully applied to the analysis of pesticide and agrochemical TGAIs. …
NAID 130005085685

Antifouling agents and Fenitrothion contamination in seawater, sediment, plankton, fish and selected marine animals from the Seto Inland Sea, Japan

Kaonga Chikumbusko Chiziwa,Takeda Kazuhiko,Sakugawa Hiroshi
GEOCHEMICAL JOURNAL 49(1), 23-37, 2015
… The general trend was that of decreasing pesticide concentrations away from the mouth of rivers flowing into the Seto Inland Sea. … Measured concentrations of both the antifoulant booster biocide Irgarol 1051 and the insecticide Fenitrothion in both whole fish and marine animals sampled exceeded the Japanese Maximum Residual Limits (MRLs) as did 21% of foods sampled for Diuron. …
NAID 130004857886