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The 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 moreSeveral decades of frustrated attempts to prevent fires in the Brazilian Savanna (Cerrado) have led to deleterious ecological and management consequen...
Read moreA method of detecting slugs below ground, using recoverable potato baits in a medium heavy silt soil, is described. Arion hortensis and Milax buda-pes...
Read moreRainfall data were collated for years preceding historical outbreaks of Mastomys [Praomys] rats in East Africa in order to test the hypothesis that su...
Read moreCattle egrets (Ardeola ibis) feeding in dairy pastures in the south-western Cape, South Africa, ate mainly grasshoppers, caterpillars and earthworms, ...
Read moreIn each of three years, sugar beet was grown on; seven different soils with two rates of fertilizer-N. Differences in yield between different soils an...
Read moreThe production of current season growth by Coleogyne ramosissima was determined by length measurement in Sept. when the twigs were dormant. Percentage...
Read moreIn field trials in Silwood Park, Berkshire, UK in 1982-85, wheat cv. Hustler was subjected to no grazing or to several regimes of grazing by rabbits. ...
Read moreClimate change is driving changes in fire frequency and intensity, making it more urgent for conservation managers to understand how species and ecosy...
Read morecf. F.A. 32 Nos. 4094, 6036.] Seeds were sown on (a) undisturbed forest sites, (b) sites cleaned by pulling out the weeds, and (c) hoed forest sites, ...
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