The use of granular pesticides from the point of view of residues

Walker, Peter T.

doi:10.1007/978-1-4615-8476-6_2

Cited by 11 publications

(1 citation statement)

References 233 publications

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“…to allow their use as pesticides179 21 9 22 and have vapour pressures similar to or higher than pesticides such as dichlorv0~,~3 but even so studies on their uptake by plants should provide information of value in the understanding of the principles of uptake of organophosphate vapour and information relevant qualitatively, if not quantitatively, to the fate of pesticide vapours in the biosphere. D. J. Howeb st al.…”

Section: Introductionmentioning

confidence: 99%

Uptake of some volatile alkyl methylphosphonofluoridates from the vapour phase by wheat plants

Howells¹,

Hambrook²,

Allenby³

1976

Pestic. Sci.

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The uptake of cyclohexyl, isopropyl and 1,2,2-trimethyIpropyl methylphosphonofluoridates from the vapour phase by growing wheat plants was studied. The compounds were absorbed through the leaves of the plants and were degraded in a manner similar to that following their uptake through the roots from hydroponic culture solution. The levels of the methylphosphonic acid derivatives in the plant extracts were influenced by the vapour concentration of the methylpbosphonofluoridate, the period of exposure to the vapour and the state of illumination of the plants, but were not markedly influenced by the chemical nature of the compounds. Likely mechanisms for the uptake are discussed and it is concluded that the main route of absorption involves the stomata. The studies suggest that growing plants can absorb and possibly have a "sink effect" for atmospheric organophosphorus contamination.

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Section: Introductionmentioning

confidence: 99%

Uptake of some volatile alkyl methylphosphonofluoridates from the vapour phase by wheat plants

Howells¹,

Hambrook²,

Allenby³

1976

Pestic. Sci.

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References

2000

Pesticide Application Methods

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General principles governing the behaviour of granular formulations

Furmidge

1972

Pestic. Sci.

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Granular forniulations are defined and a brief description is given of the most common methods used for their preparation. The physical behaviour of granules when applied to the soil surface is discussed in terms of uniformity of the treatment and release of toxicant by rain and by diffusion. The importance of granule size, toxicant content, application rate and granule density is considered and the way in which changes in these parameters are likely to affect the performance of granular formulations is illustrated.

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The use of granular pesticides from the point of view of residues

Cited by 11 publications

References 233 publications

Uptake of some volatile alkyl methylphosphonofluoridates from the vapour phase by wheat plants

Uptake of some volatile alkyl methylphosphonofluoridates from the vapour phase by wheat plants

References

General principles governing the behaviour of granular formulations

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