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The effects of bush clearing, cultivation and crop protection with DDT on surface casting activity and populations of earthworms were monitored over a...
Read moreDDT, 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...
Read moreSeed 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...
Read morePersistent pesticide residues remain a significant environmental pollutant, reducing breeding success of predatory birds even where such pesticides ha...
Read moreThe 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...
Read moreThe 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...
Read moreThe 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...
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...
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...
Read moreThe 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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