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Both the number of rice hills (clumps of tillering stalks from planted seedlings) and the density of vectors were divided into 3 categories: healthy, ...
Read moreA key-factor analysis is presented using data on Delia coarctata (Fall.) populations collected over 12 years from Stackyard field, Rothamsted. The ana...
Read moreDispersal of Cryptococcus fagisuga Ldgr. in a beech forest in southern England was studied using suction traps and sticky traps. First instar larvae a...
Read moreA simple model is proposed relating numbers of dispersing insects to distance from a release point and time. One form of the model, which is explained...
Read moreWing lengths of nearly 6000 Spodoptera exempta (Wlk.) adults were measured in samples caught at light-traps at various sites in East Africa between De...
Read moreThe following is based largely on the author's summary of .this part of a series on investigations in south-eastern f-.ngland [cf. RAE A 54 470]. Foll...
Read moreA transect of 44 pitfall traps passing through 11 point habitats associated with citrus in South Africa captured 10 488 individuals comprising 23 gene...
Read moreThe following is based largely on the author's summary of this account of investigations in Kenya. The percentage of barley shoots attacked by larvae ...
Read moreA Littoral Ecosystem Risk Assessment Model (LERAM) is described and evaluated using field data from a previous littoral enclosure study of the effects...
Read moreCommonness and rarity among British butterflies were examined by relating features of biology and ecology to geographical distribution. No single attr...
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