Document Type
Article
Publication Date
11-16-2006
Abstract
The gall fly Cecidochares connexa (Macquart) (Diptera: Tephritidae) was imported from Indone ia into Guam in 1998. It was field-established at one location in north central Guam, and its spatial and temporal spread in Guam was monitored. The biology of the gall fly is presented. No relationship between the number of larvae in a gall and the dimensions of the gall (length and width) existed. Three pupae per gall was the most frequent density with a range of 1-7. The sex ratio of flies emerging from galls was 1:1 irrespective of number of larvae per gall. C. connexa-induced galls established a "nutrient sink" as a result of the formation of a nutritive tissue along the walls of the larval chamber. Younger galls contained more mineral nutrients, namely, calcium, iron, potassium, manganese, and zinc, which were depleted as the galls matured, but the reverse trend was noted for sodium. Galls developing on terminal meristems significantly reduced the length of the shoots of Chromolaena odorata (Asteraceac). © 2006 Entomological Society of America.
Publication Source (Journal or Book title)
Annals of the Entomological Society of America
First Page
845
Last Page
850
Recommended Citation
Cruz, Z., Muniappan, R., & Reddy, G. (2006). Establishment of Cecidochares connexa (Diptera: Tephritidae) in Guam and its effect on the growth of Chromolaena odorata (Asteraceae). Annals of the Entomological Society of America, 99 (5), 845-850. https://doi.org/10.1603/0013-8746(2006)99[845:EOCCDT]2.0.CO;2