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The populations of Operophtera brumata (L.) on 8 cider apple trees of 4 cultivars were monitored from October 1972 until May 1975 in Western England. ...
Read moreWoodpigeons (Columba palumbus) foraging on Brassica sites in England spent about 50% of their time resting. They tended to move from Brassica to clove...
Read moreBroods of grey and red-legged partridges were radio-tracked for 20 days after hatching and their diet estimated from faeces collected at nocturnal roo...
Read moreThe cereal aphid outbreaks of 1979 (Metopolophium dirhodum) and 1980 (Sitobion avenae) and their lower populations in 1981, in Norfolk, eastern Englan...
Read moreThe importance of ecotonal or edge environments to white-tailed deer (Odocoileus virginianus) was assessed by pellet group counts. Edge and non-edge h...
Read moreA statistical model is presented which explores the effects of weed patchiness on crop yield. Input data are a non-linear regression of yield versus w...
Read moreThe weed seed populations built up in the top 6 in. of soil in land on which vegetable crops have been grown for long periods, was estimated from soil...
Read moreThe experimental material (all of Queen Charlotte Islands provenance) consisted of seedlings grown for three months in growth chambers and detached sh...
Read moreA soil disturbance treatment often results in more annual weed seedlings emerging when conducted in light than when conducted in darkness, suggesting ...
Read moreIn field studies at Westerholt, Netherlands, (a) an Agrostis capillaris stand lightly grazed by sheep, (b) a moderately grazed Holcus lanatus stand an...
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