The movement and persistence of insecticides in plant tissue

Finlayson, D. G.; MacCarthy, H. R.

doi:10.1007/978-1-4615-8395-0_3

Cited by 13 publications

(6 citation statements)

References 159 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The explanation for this result is that the insecticides penetrated whole grains, and were partially extracted during the extraction procedure. The insecticides we studied are contact insecticides; even so, they can penetrate and even move within the plant tissues (Finlayson & MacCarthy, 1965). The rate at which contact insecticides penetrate stored grains affects their metabolic fate and the persistence of their residues, with degradation being directly proportional to penetration velocity (Rowlands, 1971).…”

Section: Resultsmentioning

confidence: 99%

Fenitrothion and esfenvalerate stability during corn and wheat sample processing

Vásquez-Castro

Baptista²,

Trevizan

et al. 2008

Sci. agric. (Piracicaba, Braz.)

View full text Add to dashboard Cite

The presence of insecticide residues in cereals represents a risk for the consumer, because these substances are used in large scale to protect stored grains from the attack of pests. The effects of three processing methods for corn and wheat samples on the stability of stored-grain protective insecticides were here evaluated. Fenitrothion and esfenvalerate were applied so as to produce theoretical concentrations of 10 and 0.5 mg kg -1 , respectively. Two hours after treatment, the grains were processed and deposition was analyzed by gas chromatography. Grain species did not influence insecticide stability. This stability was only dependent upon the processing method and insecticide type. Grains processed together with dry ice provided the greatest percentage of recovery for both insecticides. Regardless of the processing method, more esfenvalerate than fenitrothion was recovered, thus demonstrating the greater stability of the pyrethroid during this operation. Key words: stored grain, insecticide degradation, dry ice, gas chromatography ESTABILIDADE DE FENITROTION E ESFENVALERATO DURANTE O PROCESSAMENTO DE AMOSTRAS DE MILHO E TRIGORESUMO: A presença de resíduos de inseticida em amostras de cereais representa um risco ao consumidor, pois estas substâncias são empregadas em larga escala na preservação de grãos armazenados. Neste sentido, o efeito de três métodos de processamento de amostras de milho e trigo na estabilidade de inseticidas protetores de grãos armazenados foram avaliados. O fenitrotion e o esfenvalerato foram aplicados de modo a produzir concentração teórica de 10 e 0,5 mg kg -1 , respectivamente. Duas horas após o tratamento, os grãos foram processados e os depósitos analisados mediante cromatografia gasosa. A espécie de grão não teve influência na estabilidade dos inseticidas, sendo que essa estabilidade apenas dependeu do método de processamento e do inseticida. Os grãos processados junto com gelo seco proporcionaram a maior porcentagem de recuperação de ambos os inseticidas. Independente do método de processamento utilizado, conseguiu-se recuperar mais esfenvalerado do que fenitrotion, demonstrando-se assim, a maior estabilidade do piretróide durante esta operação. Palavras-chave: grãos armazenados, degradação de inseticida, gelo seco, cromatografia gasosa

show abstract

Section: Resultsmentioning

confidence: 99%

Fenitrothion and esfenvalerate stability during corn and wheat sample processing

Vásquez-Castro

Baptista²,

Trevizan

et al. 2008

Sci. agric. (Piracicaba, Braz.)

View full text Add to dashboard Cite

show abstract

“…Some of these chemicals may be translocated and incorporated into the plant and may be toxic to phytophagous insects (Finlayson and MacCarthy 1965, Nash 1974, Suzuki et al 1977, Jastrow and Koeppe 1980, Sommers 1980). These and other chemicals and nutrients in sludges may also influence respiration, transpiration, growth, and nutrient makeup of plants exposed to them (Carlson et al 1975, Ernst 1980, Sherwood et al 1981, Strek and Weber 1982.…”

Section: Resultsmentioning

confidence: 99%

Effects of Chemically Contaminated Sewage Sludge On an Aphid Population

Culliney¹,

Pimentel²

1986

Ecology

View full text Add to dashboard Cite

Survival and fecundity of green patch aphids, Myzus persicae, were markedly reduced when they were fed on collard plants grown in pots of soil treated with chemically contaminated sewage sludge, as compared to populations on potted plants grown in uncontaminated sludge or on fertilized soil (control). Calculated demographic parameters differed significantly between the contaminated sludge and uncontaminated sludge populations and between the contaminated sludge and control populations. No significant differences were detected between the uncontaminated sludge and control populations. The ecological effects on the aphids suggest that plant uptake and translocation of chemical from the contaminated sludge affected aphid fitness through direct toxicity and/or reduced nutritional value of the plant. These results indicate that phytophagous insects may be affected by chemical contaminants in sewage sludge used in agriculture.

show abstract

“…Plants are the major ultimate recipients of herbicides and pesticides, either from direct application, soil uptake, or atmospheric drift. These may reside on the surface of plants or by their lipophilicity they may penetrate the cuticle of leaves, fruits, stems, roots, or seeds (Finlayson and MacCarthy 1965). Animals, in part, due to an efficient circulatory and excretory system tend to eliminate biotransformation products primarily in urine and feces.…”

Section: Pollution Levels In Plants and Animalsmentioning

confidence: 99%

Herbicides and Pesticides as Potential Pollutants: A Global Problem

Rashid¹,

Husnain²,

Riazuddin³

2010

Plant Adaptation and Phytoremediation

View full text Add to dashboard Cite

Herbicides and pesticides have been used to control, eliminate or destroy pests in order to protect human being's food. This technology could be economical and effective if the selection of herbicides and pesticides is based on its mode of action, chemical nature, method and time of application and nature of crop. They have been extensively studied for their toxic potential to biological systems. Herbicides and pesticides are gradually more water soluble, polar and heat stable, therefore it is difficult to reduce their lethalness and to fade away them from the atmosphere. They are highly selective, and found to be toxic to a number of people in industry, agriculture and public health work places. They have harmful effects directly or indirectly on soil, environment, surface and ground water natural flora and fauna, aquatic life which will ultimately adversely influence the human beings and livestock. So, likely impact of herbicides and pesticides on atmosphere and community health is of great significance regardless of their noticeable benefits. It is likely to reduce the selection of pest resistance by preventing the contact between pesticide which act in a particular way and the pest population and to subsequently apply pesticides from diverse classes of compounds having dissimilar modes of accomplishment. Integrated Pest Management (IPM) is intended to protect the maximum likely risks to agriculture as well as environment by using cost-effective measures and pest management will prolong for improvements with the advent of new and improved technologies. B. Rashid (B)Centre for Applied Molecular Biology, 87 W Canal Bank Road, Thokar Niaz Baig,

show abstract

The movement and persistence of insecticides in plant tissue

Cited by 13 publications

References 159 publications

Fenitrothion and esfenvalerate stability during corn and wheat sample processing

Fenitrothion and esfenvalerate stability during corn and wheat sample processing

Effects of Chemically Contaminated Sewage Sludge On an Aphid Population

Herbicides and Pesticides as Potential Pollutants: A Global Problem

Contact Info

Product

Resources

About