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Observations were made in southern England in 1970-71 on aphid populations infesting the aerial shoots of spring cereals. Aphids mainly Acyrthosiphon ...
Read moreThe viable weed seed content of the surface soil at 78 sites in the upper Belize Valley, British Honduras, averaged 6488 seeds/m2 and included 54 spec...
Read moreWeed communities sampled at 78 sites on farmland in the upper Belize Valley, British Honduras, showed 148 different weeds present, of which 103 were i...
Read moreAn account based on the report prepared in 1959-61 by Hunting Technical Services Ltd. for the West Pakistan Water and Power Development Authority in c...
Read moreSamples of Auchenorrhyncha were collected from fertilized plots in southern England between April 1978 and November 1979. Twenty-nine species were rec...
Read moreThis report sets out the approach and methods adopted to inform development of the 25 Year Environment Plan Outcome Indicator, D5: 'Conservation statu...
Read moreSugar-beet was grown at 7 locations with different soil types in the E. of England and received 2 levels of N during 1960-2. Differences in yield betw...
Read moreThe following is based largely on the author's summary. The insect communities on vegetation in a mixed hedgerow and in neighbouring fields of pasture...
Read moreA map is given showing the distribution in East Africa of 6 ecological zones denned on the basis of rainfall and evaporation data. Of the vegetation t...
Read moreThe nutrition of the eastern grey kangaroo (Macropus giganteus) and the wallaroo (Macropus robustus) was studied in 2 areas in the New England Tablela...
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