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Showing 16 results
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...Read more
The large-scale use of organochlorine compounds in insect control causes increasing concern due to their toxicity and persistance which creates enviro...Read more
A recent reappraisal of the evidence of the effects of cyclodiene insecticides on sparrowhawks Accipiter nisus and kestrels Falco tinnunculus in Brita...Read more
The same 25 eyries of golden eagles (Aquila chry-saetos) were examined each year in west Scotland. In 1963-65 the "percentage of nests with eggs from ...Read more
The following is virtually the authors' summary. The dispersal of a population of Hylemya (Erioischia) brassicae (Bch.) was studied in Oxfordshire ove...Read more
Dieldrin was banned from use in sheep dips in January 1966. The proportion of golden eagle eyries in western Scotland that produced young increased fr...Read more
The following is virtually the authors' conclusion and summary. The proportion of eyries of the golden eagle (Aqutta chrysaetos) in western Scotland i...Read more
Sparrowhawks (Accipiter nisus) found dead in eastern England showed a significant reduction in HEOD (organochlorine pesticide residues derived from al...Read more
The following is based largely on the author's summary of this account of investigations in Kenya. The percentage of barley shoots attacked by larvae ...Read more
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