scholarly journals Biology and Host Preference of Nephopteryx divisella (Lepidoptera: Pyralidae): Candidate Agent for Biological Control of Leafy Spurge Complex in North America

1998 ◽  
Vol 27 (3) ◽  
pp. 731-735
Author(s):  
M. Cristofaro ◽  
F. Sale ◽  
G. Campobasso ◽  
L. Knutson ◽  
V. Sbordoni
Keyword(s):  
Biological Control ◽  
North America ◽  
Host Preference ◽  
Leafy Spurge ◽  
Lepidoptera Pyralidae

scholarly journals Application of chemotaxonomy of leafy spurges (Euphorbia spp.) in biological control

1992 ◽  
Vol 70 (8) ◽  
pp. 1529-1536 ◽  
Author(s):  
Antony N. G. Holden ◽  
Paul G. Mahlberg
Keyword(s):  
United States ◽  
Biological Control ◽  
Liquid Chromatography ◽  
North America ◽  
South Dakota ◽  
Leafy Spurge ◽  
Gas Liquid Chromatography ◽  
Qualitative And Quantitative ◽  
Plant Sources ◽  
European Group

Triterpenoid profiles from latex of 56 accessions of European leafy spurges (Euphorbia spp.) were analyzed by gas–liquid chromatography. Qualitative and quantitative differences for components of the profiles were employed to distinguish between accessions. Triterpenoid profiles were diagnostic for the species, E. amygdaloides, E. agraria, E. cyparissias, E. lucida, and E. seguierana and were similar for each of these species in accessions collected from distant areas of Europe. By contrast, the 37 accessions of the E. esula complex were separated into 15 groups on qualitative and quantitative differences for components in the profiles. Identical profiles were detected among neighbouring accessions as well as those in collections from widely distant sites; conversely, different profiles also were identified for such collections. Profiles among these groups were compared with profiles of 39 United States (US) accessions of leafy spurge from Montana, Nebraska, North Dakota, and South Dakota. Profiles of US accessions, which were less variable than those from Europe, grouped into only 3 of the 15 European groups, whereas one US group could not be placed directly into a European group. This study demonstrates that latex analyses of European leafy spurges can distinguish between spurge populations and will identify potential plant sources of biocontrol agents for application against their leafy spurge counterparts in North America. Key words: leafy spurge, Euphorbia, latex, triterpenoids, gas–liquid chromatography.

Yellow Brazilian Pepper-tree Leaf Galler (suggested common name) Calophya latiforceps Burckhardt (Insecta: Hemiptera: Calophyidae: Calophyinae)

EDIS ◽  
2017 ◽  
Vol 2017 (6) ◽  
Author(s):  
James P. Cuda ◽  
Patricia Prade ◽  
Carey R. Minteer-Killian
Keyword(s):  
Biological Control ◽  
North America ◽  
Natural Enemies ◽  
Host Plants ◽  
Classical Biological Control ◽  
Biological Control Agents ◽  
Pepper Tree ◽  
Brazilian Pepper ◽  
Close Relatives ◽  
Tree Leaf

In the late 1970s, Brazilian peppertree, Schinus terebinthifolia Raddi (Sapindales: Anacardiaceae), was targeted for classical biological control in Florida because its invasive properties (see Host Plants) are consistent with escape from natural enemies (Williams 1954), and there are no native Schinus spp. in North America. The lack of native close relatives should minimize the risk of damage to non-target plants from introduced biological control agents (Pemberton 2000). [...]

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