Some aspects of the insect fauna of Romagna in connection with poisoning by pesticides. 1. Market-garden crops grown for seed. (Preventive note)

Celli, G.; Bellini, R.

Bollettino dell' Istituto di Entomologia della Universita degli Studi di Bologna 38: 217-230


Accession: 001253114

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Market-garden crops (lucerne, red clover, sainfoin [Onobrychis sp.], faba bean [Vicia faba], cabbage, onion, radish and turnip) grown for seed in 2 areas of the Romagna region of Italy were surveyed by visual counts and by sweep-net collections for wild insect pollinators, in order to determine the extent to which these can remain in areas frequently subjected to chemical treatments. Greater numbers of pollinators were found in the area with less pollution from pesticides. Lists are given on the pollinators present on crucifers, legumes and onion. Wild bees such as Bombus spp. were the most affected by the chemical sprays and could thus be used as test organisms for assessing the extent and degree of chemical pollution and high-input farming. Syrphid pollinators (Eristalis arbustorum and E. tenax) were much less sensitive and were numerous in both the treated and the untreated area.