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An anholocyclic clone of Rhopalosiphum padi was reared on leaves of barley seedlings at 20°C in LD 16:8. First-instar nymphs and newly moulted, pre-re...
Read moreUnderstanding which factors determine tick-borne disease hazard can contribute to effective disease control. In Europe, the hazard of the pathogens Bo...
Read moreThe following is virtually the authors' summary. A small static population of Schistocerca gregaria (Forsk.) confined to an area of Heliotropium aegyp...
Read moreA biological interpretation was made of spatial distributions of the aleyrodid Trialeurodes vaporariorum reared on Phaseolus vulgaris from various agg...
Read moreFreshwaters are among the most endangered ecosystems in the world as a result of anthropogenic interference such as pollution. Pollution in the form o...
Read moreResults of recent research on Dactylopius opuntiae, a biological control agent for cactus weeds (Opuntia spp.) in South Africa and elsewhere, challeng...
Read moreThe following is virtually the author's summary of this part of a series on investigations in south-eastern England [cf. RAE A 57 889, etc.]. The effe...
Read moreIdentifying invading tick populations provides early warning for emerging tickborne diseases that are expanding their geographic range. But how fast d...
Read moreInsecticides are important drivers of biodiversity loss and ecological impairment in freshwater ecosystems. Freshwater insects may be exposed to insec...
Read moreSamples of Heteroptera and Auchenorrhyncha were taken from replicated plots grazed by sheep in spring, summer, autumn and winter and from ungrazed are...
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