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A field experiment on lucerne in British Columbia in which populations of Acyrthosiphon pisum (Harris) were harvested at various rates is described an...
Read moreIn investigations on Merodon equestris (F.) infesting daffodils in southern England in 1968-71, daily estimates of adult populations were made using a...
Read moreThis document sets out Natural England's view on favourable conservation status for kittiwake in England. Favourable conservation status is the situat...
Read moreThis document sets out Natural England's view on favourable conservation status for lowland meadows in England. Favourable conservation status is the ...
Read moreThis document sets out Natural England's view on favourable conservation status for Bechstein's bat in England. Favourable conservation status is the ...
Read moreThis document sets out Natural England's view on favourable conservation status for greater horseshoe bat in England. Favourable conservation status i...
Read moreThis document sets out Natural England's view on favourable conservation status for lowland mixed deciduous woodland in England. Favourable conservati...
Read moreSee also W.A. 20, 2439 and 2892. Experimental simulation of the theoretical effects of ploughing, both to different depths, and at different times of ...
Read moreDistribution records of the flora within arable field boundaries and the associated crop indicated that most species in field boundaries did not occur...
Read moreFlight phenologies of the migrant aphid Rhopalosiphum padi, as indicated by suction trap catches throughout France in 1978-88, were compared using mul...
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