Apiculture and the environment. The honeybee as a biological indicator of pesticides (with particular reference to Forli province) . (Preventive note)

Celli, G.; Porrini, C.; Tiraferri, S.

Bollettino dell' Istituto di Entomologia "Guido Grandi" della Universita di Bologna 39: 231-241


Accession: 001531203

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A pesticide monitoring programme using honeybees has been in operation in Forli, Italy, for several years. At each of the 24 sampling stations a beekeeper manages 2 hives fitted with Gary dead bee traps; he records bee mortality each week. If numbers exceed the critical level of 500-700, dead bees are analysed. The 1983 results show the areas of high, medium and low pesticide hazard. In 19 samples of dead bees analysed, fungicides were found in 14, insecticides in 11 and an acaricide in 1. Dithiocarbamates were present at levels up to 7.1 ppm in some samples, and parathion up to 1.3 ppm, and in one sample the captafol content was 82 ppm.P. Walker.