Direct and indirect effects of the fungicide carbendazim on ecosystem structure and functioning were studied < or =8 weeks after application (nominal concentrations: 0, 3.3, 33, 100, and 1000 microg/L) to outdoor microcosms in Thailand. Direct effects on macroinvertebrates are discussed in detail in a separate article. The present article presents the effects on other end points and discusses t...

A series of N-(substituted pyridinyl)-1-methyl(phenyl)-3-trifluoromethyl-1H-pyrazole-4-carboxamide derivatives were synthesized. All target compounds were characterized by spectral data (¹H-NMR, ¹³C-NMR, IR, MS) and elemental analysis and were bioassayed in vitro against three kinds of phytopathogenic fungi (Gibberella zeae, Fusarium oxysporum, Cytospora mandshurica). The results showed that so...

The degradation of pesticide Carbendazim was investigated by combination of TiO2-based photocatalysis and ozonation. A batch annular photoreactor has been used for carrying out the combined process and the influence of TiO2 concentration, ozone dose and pH were investigated. The results showed that the removal rate increased with increase in ozone dosage upto 0.48 g/h and decreased above 1g/L o...

A rapid method has been developed for the determination of thiophanate methyl and its metabolite carbendazim in tea samples using ultra-high-performance liquid chromatography tandem mass. Dispersive solid-phase extraction was optimized and employed as a sample preparation technique without concentration and solvent exchange. Degradation of thiophanate methyl and its isotope were observed and th...

TLC bioautography using precoated glass thin-layer plates impregnated with benomyl or carbendazim (MBC), and Cladosporium herbarum as a test fungus was evaluated as a facil way to detect plant secondary m etabolites antidoting against benzimidazole fungicides. In ad­ dition to emodin and a-tocopherol from Polygonum sachalinense, three phenolics, 3,5-dihydroxy-4-methylstilbene and 5-methoxy-6,7-...

Tolerance of Trichoderma species collected from tea plantation to fungicides was evaluated in vitro using poisoned food method. Fungicides like Carbendazim 50 WP, Copperoxychloride 50 WP, Hexaconazole 5 EC, and Propiconazole 25 EC were used at two lower and two upper of recommended doses. The growth of T. harzianum was mostly inhibited by the Carbendazim 50 WP and Propiconazole 25 EC with the r...

Two simple, sensitive, rapid, accurate and precise spectrophotometric methods were developed for the analysis of parts per million levels of widely used carbamate pesticide Carbendazim. The first proposed method A is based on the Oxidation followed by complex formation product with 2,2-Bipyridyl – Fe(III) to form orange colored chromophore exhibiting absorption maximum at 512 nm with apparent m...

Nine fungicides namely: carbendazim, hexaconazole, thiophonate methyl, triadimefan, metalaxyl, mancozeb, captan, copper oxychloride and chlorothalonil and seven bioagents namely: Trichoderma harzianum, Trichoderma viride, Gliocladium virens, Lacaria laccata, Boletus edulis, Suillus placids and Russula lutea were evaluated in vitro by using dual culture and cultural filtrate techniques for their...

A multi-residue method for the determination of 54 pesticide residues in pollens has been developed and validated. The proposed method was applied to the analysis of 48 crude pollen samples collected from eight provinces of China. The recovery of analytes ranged from 60% to 136% with relative standard deviations (RSDs) below 30%. Of the 54 targeted compounds, 19 pesticides were detected. The ma...

The agrochemical overuse, especially that of paraquat, cypermethrin and carbendazim, has been observed in Thailand. Residuals do not only contaminate the environment agricultural products, but also other living organisms related to farming. With less attention being paid residues environment, this study aimed quantify soil, water, chicken’s blood worker’s urine samples across different periods ...