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Experimentation has been the cornerstone of much of integrated pest management (IPM) research. Here, we aim to open a discussion on the possible merits of expanding the use of observational studies, and in particular the use of data from farmers or private pest management consultants in "ecoinfor...
Fourteen strains were isolated from nitrogen-fixing nodules on the roots of plants of the genus Mimosa growing in Taiwan, Brazil and Venezuela. On the basis of 16S rRNA gene sequence similarities, all of the strains were previously shown to be closely related to each other and to belong to the ge...
El añublo del arroz causado por Pyricularia grisea (Sacc) es la principal enfermedad del cultivo en todo el mundo. El desarrollo dc variedades resistentes es el método preferido para el control de la enfermedad; sin embargo, las variedades pierden su resistencia en períodos de 1 a 2 años después ...
Bean dwarf mosaic virus (BDMV) was transmitted mechanically and by the whitefly Bemisia tabaci from and to susceptible bean (Phaseolus vulgaris) cultivars. Two species of Sida, suspected weed reservoirs of BDMV, were also shown to be susceptible hosts by whitefly transmission tests. Electron micr...
Greenhouse studies on pathogenic variability of Xanthomonas manihotis did not reveal the occurrence of distinct pathogenic races. The non-race status of the pathogen suggests that CBB could be well-controlled in the field by using known levels of genotype resistance in specific ecosystems and by ...
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