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Adults of Altica (Haltica) carduorum Guer. from France were released in 1969 and 1970 on Cirsium arvense (creeping thistle) at Silwood Park, Berkshire...
Read moreCarduus nutans spp. nutans was introduced into Australia in 1950, since when it has spread into several agricultural areas. Models were developed to d...
Read moreLight-trap records showed that Nilaparvata lugens (Stal), an important pest of rice, is prevalent in the southwestern part of Japan. Populations that ...
Read moreThe structural dynamics of the growth of Betula pendula were examined using demographic techniques in which elements of the crown (buds, leaves, shoot...
Read moreA computerized matrix model of bud production by Betula pendula was developed and applied to data from 3 mature trees. Limitations of the model are di...
Read moreA model was developed to simulate the production rate of above-ground dry matter by trees and by ground vegetation. Values for a Scots pine stand in c...
Read moreReproductive behaviour was recorded in 23 populations of D. glomerata grown under uniform field conditions. In most populations some plants headed in ...
Read moreThe assessment of multihazard risks in urban areas poses particular difficulties due to the different temporal and spatial scales of hazardous events ...
Read moreGermany is generally characterized by intensive agriculture. There is increasing concern about the situation of extensively used meadows and pastures ...
Read moreGlossina control operations are more likely to succeed if timed to exploit periods of natural vulnerability. One measure of a population's condition i...
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