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Pesticides and parasites have each been linked to increased mortality in western honey bees (Apis mellifera). Currently, it is uncertain if one makes ...
Read moreIn laboratory studies in Massachusetts with a synthetic diet and the foliage of 4 forest trees (grey birch (Betula populifolia), white oak (Quercus al...
Read moreParasitic plants in the genus Cuscuta (dodders) make their living by extracting resources from other plants. While relatively few dodder species are a...
Read morePopulation densities of Heterodera avenae in a sandy soil in Nottinghamshire, UK, decreased to very low levels between 1957 and 1968, despite intensiv...
Read moreThe following is virtually the author's summary. Observations in southern England in 1964-67 showed that the period when most of the Hymenopterous par...
Read moreAlternative models for the population dynamics of G. pallida using data from a field experiment in which nematode egg densities were observed before p...
Read moreThe numbers of Brevicoryne brassicae and its parasites and predators in a crop of brussels sprouts were counted during a season. The results were grou...
Read moreThe following is based almost entirely on the author's summary. In investigations in southern England, nearly twice as many eggs were laid by females ...
Read moreThe nematode fauna of 4 cropping systems were studied for 5 years in central Sweden. Plots were cropped as follows: barley with (B120) and without (BO...
Read moreData concerning the application of D-D or Dazomet to 48 plots of potatoes in the UK, over 6 years were analysed, using population models, to determine...
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