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Treesearch

Dependency of outbreaks distribution from insects - defoliators' seasonal development

Informally Refereed
Download (PDF 91 KB): https://research.fs.usda.gov/download/treesearch/19121.pdf

Abstract

Analysis of data on the population dynamics of foliage browsing insects in time and space was conducted in the Ukraine. For each of the main species, correlation indices were calculated between outbreak characteristics (mean and specific foci area, outbreak probability), weather elements (air temperature, precipitation), indices (hydrothermal coefficient, winter severity) and the dates of air temperature transition over and below different limits (0, 5, 10, and 15?C).

Parent Publication

Citation

Meshkova, Valentina. 2003. Dependency of outbreaks distribution from insects - defoliators'' seasonal development. In: McManus, Michael L.; Liebhold, Andrew M., eds. Proceedings: Ecology, Survey and Management of Forest Insects; 2002 September 1-5; Krakow, Poland. Gen. Tech. Rep. NE-311. Newtown Square, PA: U.S. Dept. of Agriculture, Forest Service, Northeastern Research Station. 52-60.