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Residues of DDE in kestrel eggs collected near Ithaca, New York, averaged 35, 42, 33 and 37 p.p.m. in 1969, 1970, 1971 and 1972, respectively. Based o...
Read morePitfall trapping in sugar-beet crops in East Anglia in 1970 and 1971 showed that Carabidae were much more active and abundant than other epigeic preda...
Read moreThe effects of increased nutrient and organic loading on a community dominated by submersed macrophytes and gastropods were investigated in a drainage...
Read moreThe numbers of dead and live Sitobion avenae falling to the ground in a wheat crop in 1988-89 in the UK were estimated. The estimates showed that more...
Read moreHerbivorous insect communities were studied on oak (Quercus petraea) trees in pure stands of oak or in mixtures with alder (Alnus glutinosa), pine (Pi...
Read moreAn investigation was made of factors affecting the distribution and abundance of insect herbivores on oak (Quercus petraea) in pure stands or in mixtu...
Read moreThe influence of plot size in assessing the impact of pesticide treatment on invertebrate populations in cereal fields was investigated in winter whea...
Read moreDistribution and phenology of the beetles was studied at an infestation centre in a wood dominated by Ulmus glabra in Scania, S. Sweden, in 1983-85 us...
Read moreCacao has been grown on a large scale round Popondetta in the Northern District of Papua New Guinea since 1958. Pest problems were present in the area...
Read moreThe gut contents of 1206 arthropods of 26 species collected from pitfall traps in cereal crops in southern England in 1973 were examined under a binoc...
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