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Li M, Wang S, Lang Z, Xu G, Yu Y. Combination of chemical and toxicological methods to assess bioavailability of Tolclofos-methyl by earthworms. CHEMOSPHERE 2019; 233:183-189. [PMID: 31173956 DOI: 10.1016/j.chemosphere.2019.05.215] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/31/2019] [Revised: 05/24/2019] [Accepted: 05/24/2019] [Indexed: 06/09/2023]
Abstract
Tolclofos-methyl (TM) is an organophosphorus fungicide and widely utilized to control soil-borne diseases. However, toxic effects of TM on terrestrial invertebrates are still unknown. Here we measured the bioaccumulation of TM in earthworms (Eisenia fetida) to assess its environmental bioavailability. Mortality, weight change, and oxidative damage of earthworms were determined to investigate the toxicological bioavailability of TM. ROS, SOD and MDA in highest concentration treatment group significantly increased compared to the control group, suggesting that hazardous effects of TM to earthworms were caused by the oxidative stress. To further examine its toxicological bioavailability, cytotoxicity test was carried out by using extracted earthworm coelomocytes. The biomarkers, e.g., intracellular ROS, extracellular LDH, and cell viability showed correlation with TM in the culture media, demonstrating that cytotoxicity test could be employed to reflect the toxicological bioavailability of pollutants to earthworms or other organisms.
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Affiliation(s)
- Ming Li
- Key Laboratory of Wetland Ecology and Environment, Northeast Institute of Geography and Agroecology, Chinese Academy of Sciences, Changchun, 130102, China; University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Shuai Wang
- School of Food and Environmental Engineering, East University of Heilongjiang, Harbin, 150066, China
| | - Ze Lang
- School of Food and Environmental Engineering, East University of Heilongjiang, Harbin, 150066, China
| | - Guanghui Xu
- Key Laboratory of Wetland Ecology and Environment, Northeast Institute of Geography and Agroecology, Chinese Academy of Sciences, Changchun, 130102, China; University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Yong Yu
- Key Laboratory of Wetland Ecology and Environment, Northeast Institute of Geography and Agroecology, Chinese Academy of Sciences, Changchun, 130102, China.
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A comparative study of intramolecular hydrogen bond on N-formylformamide derivatives in ground and first singlet excited state: a DFT and TD-DFT study. SN APPLIED SCIENCES 2019. [DOI: 10.1007/s42452-019-1068-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022] Open
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3
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Sharma A, Jha P, Reddy GVP. Multidimensional relationships of herbicides with insect-crop food webs. THE SCIENCE OF THE TOTAL ENVIRONMENT 2018; 643:1522-1532. [PMID: 30189568 DOI: 10.1016/j.scitotenv.2018.06.312] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/24/2018] [Revised: 06/23/2018] [Accepted: 06/25/2018] [Indexed: 06/08/2023]
Abstract
Controlling weeds is critical for improving the yield and quality of crops. Herbicides are the most commonly applied pesticides in agro-ecosystems. Herbicides affect insects directly as contact damage and indirectly by influencing food supplies. The innate susceptibility, life stages, and mode of feeding of insects can affect the herbicide-insect interaction. Interaction of herbicides with insect pest and beneficial insects is mainly indirect and absence of weeds either can reduce the insect population or causes switching of host plant and hence can also increase the population. The direct effect of herbicides depends on carrier or surfactant used. Presence of herbicides also provides surfactant to insecticides and increases impact of insecticides. At present, most reports on impact of herbicides indicate alterations in insect survival or egg production due to increase or decrease in host plant population as an indirect affect, only a handful studies reported a direct topical effect of these herbicides on egg, larvae/nymphs and adults of various insects. Further exploration of this interaction seems intriguing. Use of bio-herbicides, cultural control methods, and judicious use of herbicides could offer ecologically sustainable approaches to reduce impact of herbicides on insects.
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Affiliation(s)
- Anamika Sharma
- Montana State University-Bozeman, Department of Research Centers, Western Triangle Agricultural Research Center, 9546 Old Shelby Rd., P.O. Box 656, Conrad, MT 59425, United States of America
| | - Prashant Jha
- Montana State University-Bozeman, Department of Research Centers, Southern Agricultural Research Center, 748 Railroad Highway, Huntley, MT 59037, United States of America
| | - Gadi V P Reddy
- Montana State University-Bozeman, Department of Research Centers, Western Triangle Agricultural Research Center, 9546 Old Shelby Rd., P.O. Box 656, Conrad, MT 59425, United States of America.
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Yang G, Chen C, Yu Y, Zhao H, Wang W, Wang Y, Cai L, He Y, Wang X. Combined effects of four pesticides and heavy metal chromium (Ⅵ) on the earthworm using avoidance behavior as an endpoint. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2018; 157:191-200. [PMID: 29621711 DOI: 10.1016/j.ecoenv.2018.03.067] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/16/2017] [Revised: 03/22/2018] [Accepted: 03/24/2018] [Indexed: 06/08/2023]
Abstract
In natural ecosystems, organisms are commonly exposed to chemical mixtures rather than individual compounds. However, environmental risk is traditionally assessed based on data of individual compounds. In the present study, we aimed to investigate the individual and combined effects of four pesticides [fenobucarb (FEN), chlorpyrifos (CPF), clothianidin (CLO), acetochlor (ACE)] and one heavy metal chromium [Cr(Ⅵ)] on the earthworm (Eisenia fetida) using avoidance behavior as an endpoint. Our results indicated that CLO had the highest toxicity to E. fetida, followed by Cr(Ⅵ), while FEN showed the least toxicity. Two mixtures of CPF+CLO and Cr(Ⅵ)+CPF+CLO+ACE exhibited synergistic effects on the earthworms. The other two quaternary mixtures of CLO+FEN+ACE+Cr(Ⅵ) and Cr(Ⅵ)+FEN+CPF+ACE at low concentrations also displayed synergistic effects on the earthworms. In contrast, the mixture of Cr(Ⅵ)+FEN had the strongest antagonistic effects on E. fetida. Besides, the quinquenary mixture of Cr(Ⅵ)+FEN+CPF+CLO+ACE also exerted antagonistic effects. These findings highlighted the importance to evaluate chemical mixtures. Moreover, our data strongly pointed out that the avoidance tests could be used to assess the effects of combined effects.
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Affiliation(s)
- Guiling Yang
- State Key Laboratory Breeding Base for Zhejiang Sustainable Pest and Disease Control / Lab (Hangzhou) for Risk Assessment of Agricultural Products of Ministry of Agriculture / Key Laboratory for Pesticide Residue Detection of Ministry of Agriculture/Institute of Quality and Standard for Agro-products, Zhejiang Academy of Agricultural Sciences, Hangzhou 310021, China
| | - Chen Chen
- Key Laboratory of Agro-Product Quality and Safety of Ministry of Agriculture / Institute of Quality Standards and Testing Technology for Agro-Products, Chinese Academy of Agricultural Sciences, Beijing 100081, China
| | - Yijun Yu
- Administration for Farmland Quality and Fertilizer of Zhejiang Province, Hangzhou 310020, China
| | - Huiyu Zhao
- State Key Laboratory Breeding Base for Zhejiang Sustainable Pest and Disease Control / Lab (Hangzhou) for Risk Assessment of Agricultural Products of Ministry of Agriculture / Key Laboratory for Pesticide Residue Detection of Ministry of Agriculture/Institute of Quality and Standard for Agro-products, Zhejiang Academy of Agricultural Sciences, Hangzhou 310021, China
| | - Wen Wang
- State Key Laboratory Breeding Base for Zhejiang Sustainable Pest and Disease Control / Lab (Hangzhou) for Risk Assessment of Agricultural Products of Ministry of Agriculture / Key Laboratory for Pesticide Residue Detection of Ministry of Agriculture/Institute of Quality and Standard for Agro-products, Zhejiang Academy of Agricultural Sciences, Hangzhou 310021, China
| | - Yanhua Wang
- State Key Laboratory Breeding Base for Zhejiang Sustainable Pest and Disease Control / Lab (Hangzhou) for Risk Assessment of Agricultural Products of Ministry of Agriculture / Key Laboratory for Pesticide Residue Detection of Ministry of Agriculture/Institute of Quality and Standard for Agro-products, Zhejiang Academy of Agricultural Sciences, Hangzhou 310021, China
| | - Leiming Cai
- State Key Laboratory Breeding Base for Zhejiang Sustainable Pest and Disease Control / Lab (Hangzhou) for Risk Assessment of Agricultural Products of Ministry of Agriculture / Key Laboratory for Pesticide Residue Detection of Ministry of Agriculture/Institute of Quality and Standard for Agro-products, Zhejiang Academy of Agricultural Sciences, Hangzhou 310021, China.
| | - Yueping He
- Hubei Insect Resources Utilisation and Sustainable Pest Management Key Laboratory, College of Plant Science and Technology, Huazhong Agricultural University, Wuhan 430070, China
| | - Xinquan Wang
- State Key Laboratory Breeding Base for Zhejiang Sustainable Pest and Disease Control / Lab (Hangzhou) for Risk Assessment of Agricultural Products of Ministry of Agriculture / Key Laboratory for Pesticide Residue Detection of Ministry of Agriculture/Institute of Quality and Standard for Agro-products, Zhejiang Academy of Agricultural Sciences, Hangzhou 310021, China.
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Schmidt-Jeffris RA, Nault BA. Anthranilic Diamide Insecticides Delivered via Multiple Approaches to Control Vegetable Pests: A Case Study in Snap Bean. JOURNAL OF ECONOMIC ENTOMOLOGY 2016; 109:2479-2488. [PMID: 27760786 DOI: 10.1093/jee/tow219] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/10/2016] [Accepted: 09/11/2016] [Indexed: 06/06/2023]
Abstract
Many vegetable insect pests are managed using neonicotinoid and pyrethroid insecticides. Unfortunately, these insecticides are toxic to many bees and natural enemies and no longer control some pests that have developed resistance. Anthranilic diamide insecticides provide systemic control of many herbivorous arthropod pests, but exhibit low toxicity to beneficial arthropods and mammals, and may be a promising alternative to neonicotinoids and pyrethroids. Anthranilic diamides may be delivered to vegetable crops via seed, in-furrow, or foliar treatments; therefore, it would be desirable to identify which application method provides high levels of pest control while minimizing the amount of active ingredient. As a case study, chlorantraniliprole and cyantraniliprole applied via the methods listed above were evaluated for managing seedcorn maggot, Delia platura (Meigen) (Diptera: Anthomyiidae), and European corn borer, Ostrinia nubilalis (Hübner) (Lepidoptera: Crambidae), in snap bean. Chlorantraniliprole and cyantraniliprole delivered as seed and in-furrow treatments reduced D. platura damage to the same level as the standard neonicotinoid seed treatment. Both diamides applied via all three methods significantly reduced O. nubilalis damage, but only the foliar application provided similar control as the standard pyrethroid spray. Results from laboratory bioassays revealed that both diamides applied as seed and in-furrow treatments caused high O. nubilalis neonate mortality up to 44 d after application. While the diamides provided equivalent control of these pests as the neonicotinoid and pyrethroid standards when applied in the same manner, chlorantraniliprole delivered as a seed treatment showed the most promise for managing both pests.
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Affiliation(s)
| | - Brian A Nault
- Cornell University, New York State Agricultural Experiment Station, 630 W. North St., Geneva, NY 14456 (; )
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Schmidt-Jeffris RA, Huseth AS, Nault BA. Estimating E-Race European Corn Borer (Lepidoptera: Crambidae) Adult Activity in Snap Bean Fields Based on Corn Planting Intensity and Their Activity in Corn in New York Agroecosystems. JOURNAL OF ECONOMIC ENTOMOLOGY 2016; 109:2210-2214. [PMID: 27452000 DOI: 10.1093/jee/tow149] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/29/2016] [Accepted: 06/02/2016] [Indexed: 06/06/2023]
Abstract
European corn borer, Ostrinia nubilalis (Hübner), is a major pest of processing snap bean because larvae are contaminants in pods. The incidence of O. nubilalis-contaminated beans has become uncommon in New York, possibly because widespread adoption of Bt field corn has suppressed populations. Snap bean fields located where Bt corn has been intensively grown in space and time may be at lower risk for O. nubilalis than fields located where Bt corn is not common. To manage O. nubilalis infestation risk, growers determine insecticide application frequency in snap bean based on pheromone-trapping information in nearby sweet corn fields; adult activity is presumed equivalent in both crops. Our goal was to determine if corn planting intensity and adult activity in sweet corn could be used to estimate O. nubilalis populations in snap bean in New York in 2014-2015. Numbers of O nubilalis adults captured in pheromone-baited traps located in snap bean fields where corn was and was not intensively grown were similar, suggesting that O. nubilalis does not respond to local levels of Bt corn in the landscape. Numbers of Ostrinia nubilalis captured in pheromone-baited traps placed by snap bean fields and proximal sweet corn fields were not related, indicating that snap bean growers should no longer make control decisions based on adult activity in sweet corn. Our results also suggest that the risk of O. nubilalis infestations in snap bean is low (∼80% of the traps caught zero moths) and insecticide applications targeting this pest should be reduced or eliminated.
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Affiliation(s)
- Rebecca A Schmidt-Jeffris
- Department of Entomology, Cornell University, New York State Agricultural Experiment Station, 630 W. North Street, Geneva, NY, 14456 (; )
| | - Anders S Huseth
- Department of Entomology, Campus Box 7630, North Carolina State University, Raleigh, NC, 27695
| | - Brian A Nault
- Department of Entomology, Cornell University, New York State Agricultural Experiment Station, 630 W. North Street, Geneva, NY, 14456 (; )
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