Hazards to wildlife from the use of DDT in orchards

Abstract

Abstract An investigation into the poisoning of birds with 1,1,1‐trichloro‐2, 2‐di (4‐chlorophenyl) ethane (DDT) on a fruit farm in South‐East England is described. Pesticide levels in wild birds were sufficient to be held responsible for deaths. It is suggested that levels in samples of soil, earthworms, sludge, eggs, etc. did not indicate the source of the poisoning. Examination of caged birds following exposure to normal spraying indicated little hazard from this type of operation. Some discussion of the assessment of levels of intoxication is included.