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The distribution of the cacao swollen shoot virus is markedly discontinuous in West and Central Africa. The available data were re-examined to investi...
Read moreBecause cyst-nematode populations are relatively static, immigration and emigration are negligible and population fluctuations under different crops c...
Read moreA population model for the tick Ixodes ricinus, the most significant vector of pathogens in Europe, is used to explore the relative impact of changes ...
Read moreAs biting lice (Mallophaga) pass their whole life on the host, they have little opportunity for dispersal, except during direct contact between host i...
Read moreThe aim of this work was to estimate spatio-temporal parameters of an individual based model of Trichogramma female foraging behaviour in a mass reari...
Read moreAlthough phytophagous insects can vary genetically in host use and exhibit long-range movements, the combined implications of these phenomena for pest...
Read moreA study was conducted during 1993-95 to assess the ability of different rhizobial isolates collected from 67 populations of 22 species of Acacia acros...
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