Fate and residues of pesticides in rice production

Tejada, A. W.; Varca, Leonila M.; Ocampo, Pablo P.; Bajet, Cristina M.; Magallona, E.D.

doi:10.1080/09670879309371806

Cited by 14 publications

(14 citation statements)

References 2 publications

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“…Faster dissipation of monocrotophos residues in soil has been reported (11,12). Faster dissipation of monocrotophos residues in soil has been reported (11,12).…”

Section: Insecticide Residues In the Soilmentioning

confidence: 95%

Insecticide Residues in Cotton Crop Soil

Vig

Singh

Agarwal

et al. 2001

Journal of Environmental Science and Health, Part B

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Dimethoate, monocrotophos, triazophos, deltamethrin, cypermethrin and endosulfan were applied to a cotton crop soil located at Nurpur village, Punjab, India. The insecticides were applied sequentially at recommended dosages in cotton fields by foliar application in 1995, 1996 and 1998. Soil samples were collected from the cotton crop farms and extracted with acetone. The extracted material was analysed by a gas liquid chromatograph (GLC) equipped with an 63Ni electron-capture detector (ECD-63Ni). Recovery data was obtained by fortifying soil with insecticide. The average recoveries from the fortified soil samples were 76-92% for organophosphorous compounds and 90-98% for synthetic pyrethroids and organochlorines. The results showed that the insecticide residues under study were present in the range of 1.16 to 41.97 ng g(-1) d.wt.soil. The pattern of dissipation of the insecticides used was similar for the duration of the crop. Half lives of the insecticides ranged from 7 to 22 days. Except endosulfan none of the other insecticides used were leached below 15 cm. Endosulfan was found to be rapidly degraded in the soil and formed a sulfate metabolite. Persistence and dissipation pattern in soils with history of exposure to the insecticide compared to non-history soils were similar.

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“…Faster dissipation of monocrotophos residues in soil has been reported (11,12). Faster dissipation of monocrotophos residues in soil has been reported (11,12).…”

Section: Insecticide Residues In the Soilmentioning

confidence: 95%

Insecticide Residues in Cotton Crop Soil

Vig

Singh

Agarwal

et al. 2001

Journal of Environmental Science and Health, Part B

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“…No mortality was observed with λ-cyhalothrin and cyfluthrin at the application rates and times tested (Cagauan, 1990). Tejada et al (1993a) sprayed the recommended rate of monocrotophos, azinphos ethyl, and endosulfan separately at 40 d after transplanting rice. Paddy water was collected 3 h after spraying and was bioassayed with 50 mm long tilapia fingerlings.…”

Section: Ecotoxicology Of Pesticides In Philippine Aquatic Ecosystemsmentioning

confidence: 99%

Ecotoxicology of pesticides in Philippine aquatic ecosystems

Bajet¹

2002

Pesticide Residues in Coastal Tropical Ecosystems

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“…Although monitoring programs designed to investigate pesticide residues in the environment have mainly involved the OC insecticides, organophosphate (OP), carbamate, and other pesticides are increasingly being analyzed [8,14]. Because of the relatively unstable nature of these chemicals in the environment, residues of OP and carbamate pesticides were non‐detectable even after recent applications, and detectable levels were generally found to be low [8,14]. Random sampling of rice grains at harvest did not show any detectable residues of chlorpyrifos, 2‐sec‐butyl phenyl N‐methylcarbamate (BPMC) methyl parathion, diazinon, and monocrotophos 30 to 40 d after application.…”

Section: Fate Of Pesticides In the Tropical Paddy Field Ecosystemmentioning

confidence: 99%

Ecotoxicology of pesticides in the tropical paddy field ecosystem

Abdullah

Bajet

Matin

et al. 1997

Enviro Toxic and Chemistry

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In tropical countries rice has been identified as one of the crops that is particularly susceptible to the negative impacts of pesticide use. In addition to the physicochemical nature of the pesticide, tropical climatic conditions and agricultural practices play important roles in determining the fate and distribution of pesticides in the tropical paddy field ecosystem. The assessment of ecotoxicological effects of pesticides in the tropical paddy field ecosystem has been based primarily on acute lethality tests conducted on fish species commonly found in paddy fields. The effects of pesticides in the paddy field ecosystem on other nontarget organisms ranging from microalgae and cyanobacteria to paddy field crabs have also been investigated, although such studies are limited. As a means to promote a more judicious use of pesticides in the paddy field, the adoption of integrated pest management strategies have resulted in varying degrees of success. The most widely accepted form of control measure is the integration of multiresistant cultivars with reduced use of pesticides. Effective training of the paddy farmer has been identified as the key to successful implementation of integrated pest management strategies.

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Fate and residues of pesticides in rice production

Cited by 14 publications

References 2 publications

Insecticide Residues in Cotton Crop Soil

Insecticide Residues in Cotton Crop Soil

Ecotoxicology of pesticides in Philippine aquatic ecosystems

Ecotoxicology of pesticides in the tropical paddy field ecosystem

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