The Phytophagous Insect Fauna of the Ragweed, Ambrosia psilostachya , in Southern California 1
- 1 December 1976
- journal article
- research article
- Published by Oxford University Press (OUP) in Environmental Entomology
- Vol. 5 (6) , 1169-1177
- https://doi.org/10.1093/ee/5.6.1169
Abstract
Phytophagous insects representing 7 orders, 36 families, and 113+ species are reported as comprising the insect fauna of Ambrosia psilostachya Decandolle (Compositae) in southern California. Most insects found attacking this native ragweed were euryphagous, ectophagous, sap- and foliage-feeding species. About ½ reproduced on this plant. Seventeen (18%) of the 95 associates identified to species were stenophagous, their hosts apparently confined to the tribe Heliantheae. Thirty (32%) of these were minor or major pests of cultivars. Prospects for biological control of ragweeds in North America and abroad are discussed.Keywords
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