Partial Life Tables for the Black Hills Beetle
- 1 December 1959
- journal article
- research article
- Published by Oxford University Press (OUP) in Journal of Economic Entomology
- Vol. 52 (6) , 1199-1202
- https://doi.org/10.1093/jee/52.6.1199
Abstract
Life tables have been developed for use in ecological studies of Black Hills beetle (Dendroctonus ponderosae Hopk.) populations. These tables reveal very high mortalities among the developing beetles for all classes of infestations. Decreasing infestations suffer more than 99% mortality; static infestations about 97% and increasing infestations more than 90%. The critical mortality period is between April and July of the spring following the initial attack on the trees, late in the life cycle of the insect.Keywords
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