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Showing 29 results

Effects of cultivation and DDT on earthworm activity in a forest soil in the sub-humid tropics.

Published online: 01 Jan 1980

Authors: Cook, A. G. & Critchley, B. R. & Critchley, U. & Perfect, T. J. & Yeadon, R.

Content type: Journal article

Journal title: Journal of Applied Ecology

The effects of bush clearing, cultivation and crop protection with DDT on surface casting activity and populations of earthworms were monitored over a...

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Persistence in earthworms and potential hazards to birds of soil applied DDT, dieldrin and heptachlor.

Published online: 01 Jan 1980

Authors: Beyer, W. N. & Gish, C. D.

Content type: Journal article

Journal title: Journal of Applied Ecology

DDT, dieldrin and heptachlor were applied to separate plots in a hay field at 0.6, 2.2 or 9.0 kg/ha. For 11 yr thereafter, soil and earthworms were an...

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The effect of DDT contamination on the productivity of a cultivated forest soil in the sub-humid tropics.

Published online: 01 Jan 1980

Authors: Perfect, T. J. & Cook, A. G. & Critchley, B. R. & Critchley, U. & Davies, A. L. & Swift, M. J. & Russell-Smith, A. & Yeadon, R.

Content type: Journal article

Journal title: Journal of Applied Ecology

Seed yields of cowpea (Vigna unguiculata) were assessed in each of two annual growing seasons over the 4-year period 1973 to 1976 in experimental plot...

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Eggshell pigmentation indicates pesticide contamination.

Published online: 26 Mar 2008

Authors: Jagannath, A. & Shore, R. F. & Walker, L. A. & Ferns, P. N. & Gosler, A. G.

Content type: Journal article

Journal title: Journal of Applied Ecology

Persistent pesticide residues remain a significant environmental pollutant, reducing breeding success of predatory birds even where such pesticides ha...

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The effect of sprays on the fauna of apple trees. V. DDT/BHC and lead arsenate/nicotine applied at the green cluster stage.

Published online: 25 Oct 1969

Authors: Morris, M. G.

Content type: Journal article

Journal title: Journal of Applied Ecology

The effects of single pre-blossom applications of DDT/ BHC and lead arsenate/nicotine on the fauna of apple trees in an orchard which was otherwise ne...

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The effect of sprays on the fauna of apple trees. V. DDT/BHC and lead arsenate/nicotine applied at the green cluster stage.

Published online: 01 Jul 1970

Authors: Morris, M. G.

Content type: Journal article

Journal title: Journal of Applied Ecology

The following is virtually the author's summary of this part of a series on investigations in south-eastern England [cf. RAE A 57 889, etc.]. The effe...

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The control of Pieris rapae with DDT. III. Some changes in crop fauna.

Published online: 01 Jul 1970

Authors: Dempster, J. P.

Content type: Journal article

Journal title: Journal of Applied Ecology

The following are virtually the author's summaries of these parts of a series on observations in central England [cf. RAE A 57 7969].
Some of the chan...

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The control of Pieris rapae with DDT. II. Survival of the young stages of Pieris after spraying.

Published online: 01 Jul 1970

Authors: Dempster, J. P.

Content type: Journal article

Journal title: Journal of Applied Ecology

The following are virtually the author's summaries of these parts of a series on observations in central England [cf. RAE A 57 7969].
Following the us...

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The effect of sprays on the fauna of apple trees. IV. The re-coloniziilíon of orchard plols by the predatory Mirid Blepharidopierus angulatus and its effect on populations of Panaychus ulmi..

Published online: 02 Jul 1969

Authors: Muir, R. C.

Content type: Journal article

Journal title: Journal of Applied Ecology

The following is based largely on the author's summary of .this part of a series on investigations in south-eastern f-.ngland [cf. RAE A 54 470]. Foll...

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The effects of carbaryl and DDT on the litter fauna of a Corsican pine (Pinus nigra var. maritima) forest: a multivariate comparison.

Published online: 01 Jan 1975

Authors: Spain, A. V.

Content type: Journal article

Journal title: Journal of Applied Ecology

The effects of two levels of the insecticides carbaryl (0.11 and 1.13 g/m2) and DDT (0.56 and 5.60 g/m2) on the litter fauna of a closed canopy stand ...

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