Strain Differences in Adult Survival and Fecundity
There was a critical need for information on the basic biology of Anoplophora glabripennis (Motschulsky) (ALB). This information is needed to predict the timing of biological events fundamental to the development and improvement of exclusion and eradication methodologies. Some information on total fecundity and adult longevity on three tree species exists and suggests that the adults will choose the trees with the higher sugar content for feeding and oviposition. There is no documentation of how strains from different geographic areas differ and how this might impact management programs.
Reproductive traits and longevity of ALB from the Ravenswood, Chicago, IL, and Bayside, Queens, NY, populations were compared for first-generation adults that emerged from cut infested wood and for second-generation adults that were reared on artificial diet.
The biological basis for predicting developmental phenology, in order to time exclusion and eradication methodologies and attack rates and development on different tree species. This data can be used in developing phenological models to predict the timing of egg hatch and adult mortality, which are important for management programs.
Illinois females were significantly more fecund than those from New York when they emerged from infested wood and tended to be more fecund when reared on artificial diet. Weights of adult females that emerged from infested wood varied with the hosts they emerged from, but when reared on artificial diet, Illinois females were significantly heavier than New York females. There were no significant differences between the two populations in egg viability or adult longevity. In general, females laid more eggs and survived longer in the laboratory on sugar maple, Acer saccharum Marshall than has generally been reported for this tree species. Larval food source and quality had significant effects on female fecundity and longevity. The above differences between the two populations and the effects of host quality and host species should be taken into account when management decisions are made in the current eradication program for A. glabripennis in the United States.
Keena MA. 2002. Anoplophora glabripennis (Coleoptera: Cerambycidae) fecundity and longevity under laboratory conditions: Comparison of populations from New York and Illinois on Acer saccharum. Environmental Entomology 31(3): 490-498.
- Melody Keena, USDA Forest Service- Northern Research Station Research Entomologist
Last Modified: 07/13/2017