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The effects of pasture improvement procedures and subsequent pesticide use on the carabid and spider faunas of semi- natural upland grasslands in nort...
Read moreThe cereal aphid outbreaks of 1979 (Metopolophium dirhodum) and 1980 (Sitobion avenae) and their lower populations in 1981, in Norfolk, eastern Englan...
Read moreDipterous stem-boring larval populations were assessed in rotationally grazed or cut plots of ryegrass [Lolium perenne] in southern England throughout...
Read moreLife tables are presented for 4 consecutive generations of Psila rosae on carrots in southern England, and are analysed using key factor analysis. Of ...
Read moreThe shoots and roots of a barley crop were sampled periodically from 46 days after sowing up to the ripe stage (130 days after sowing). Root weights w...
Read moreEstimates of damage to maize by individual red-winged blackbirds (Agelaius phoeniceus) were derived from energetics and life history information and i...
Read moreIn this technique the roots are laid out on a flat surface and a count is made of the number of intersections between the roots and random straight li...
Read moreA liquid displacement method is described for rapid measurement of volumes of individual detached leaves or other small plant parts with an accuracy o...
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...
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