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In further investigations at Rothamsted [cf. preceding abstract], parasitism, overcrowding (two or more larvae in the same shoot), disease and predati...
Read moreThe basic features of the population dynamics of Musca vetustissima Wlk. in Australia have previously been elucidated from field observations and some...
Read moreField and laboratory trials were conducted in southern England to study the effects of seeding density and row spacing of oats on colonisation of seed...
Read moreThreats to bee pollinators such as land use change, high pesticide risk and reduced floral diet diversity are usually assessed independently, even tho...
Read moreCensuses of singing male corncrakes (C. crex) on agricultural land in 7 sample areas of Britain and Ireland indicated a decline in numbers between 198...
Read moreThe abundance of several species of Forcipomyia, known to be pollinators of cacao, increased markedly in 1 cacao farm in Costa Rica when discs of rott...
Read moreThe presence of weeds within the crop provided a habitat which was more suitable for some of the arthropod predators of P. rapae. Harpalus rufipes was...
Read moreAdults of Altica (Haltica) carduorum Guer. from France were released in 1969 and 1970 on Cirsium arvense (creeping thistle) at Silwood Park, Berkshire...
Read moreYields of heather herbage ranged from 3238 to 29, 261 kg DM/ha. The latter stand contained 39, 56, 17, 8 and 192 kg/ha of Ca, K, Mg, P and N, respecti...
Read moreLight-trap records showed that Nilaparvata lugens (Stal), an important pest of rice, is prevalent in the southwestern part of Japan. Populations that ...
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