scholarly journals Field Host Range ofApanteles opuntiarum(Hymenoptera: Braconidae) in Argentina, a Potential Biocontrol Agent ofCactoblastis cactorum(Lepidoptera: Pyralidae) in North America

2015 ◽  
Vol 98 (2) ◽  
pp. 803-806 ◽  
Author(s):  
Laura Varone ◽  
Guillermo Logarzo ◽  
Juan José Martínez ◽  
Fernando Navarro ◽  
James E. Carpenter ◽  
...  
Keyword(s):  
North America ◽  
Host Range ◽  
Biocontrol Agent ◽  
Potential Biocontrol Agent ◽  
Lepidoptera Pyralidae

Evaluation ofAlternaria macrosporaas a Potential Biocontrol Agent for Spurred Anoda (Anoda cristata): Host Range Studies

Weed Science ◽  
1979 ◽  
Vol 27 (6) ◽  
pp. 612-614 ◽  
Author(s):  
H. L. Walker ◽  
G. L. Sciumbato
Keyword(s):  
Host Range ◽  
Biocontrol Agent ◽  
Disease Symptoms ◽  
Hibiscus Trionum ◽  
Potential Biocontrol Agent ◽  
Specialized Form ◽  
Hibiscus Esculentus ◽  
Sida Spinosa ◽  
Prickly Sida ◽  
Anoda Cristata

The host range of an isolate of the fungal pathogenAlternaria macrosporaZimmerman from infected spurred anoda [Anoda cristata(L.) Schlecht.] leaves was studied in the greenhouse and growth chamber. The fungus was inoculated to representative plants in the Malvaceae, Solanaceae, Leguminosae, and Gramineae families. Evidence of infection was limited to plants in the Malvaceae, with spurred anoda being the most susceptible species tested. Only negligible damage was incited on cotton (Gossypium hirsutumL. ‘Stoneville 213′) and long staple cotton (G. barbadenseL. ‘Pima S–5′), hollyhock [Althaea rosea(L.) Cav.], okra (Hibiscus esculentusL. ‘Clemson spineless’), prickly sida (Sida spinosaL.), velvetleaf (Abutilon theophrastiMedic.), and Venice mallow (Hibiscus trionumL.). Disease symptoms induced in cotton by the spurred anoda isolate ofA. macrosporawere much less severe than those reported for other isolates of the fungus. Therefore, the spurred anoda isolate may be a specialized form of the fungus.

HOST RANGE OF LEMA CYANELLA (COLEOPTERA: CHRYSOMELIDAE), A CANDIDATE FOR BIOCONTROL OF CANADA THISTLE, AND OF FOUR STENOPHAGOUS, FOREIGN THISTLE INSECTS IN NORTH AMERICA

1984 ◽  
Vol 116 (10) ◽  
pp. 1377-1384 ◽  
Author(s):  
D. P. Peschken
Keyword(s):  
North America ◽  
Host Range ◽  
Host Plants ◽  
Biocontrol Agent ◽  
Cirsium Arvense ◽  
Choice Test ◽  
Canada Thistle ◽  
Field Cage ◽  
Rhinocyllus Conicus ◽  
Cage Test

AbstractIn the field in Europe, Lenta cyanella (L.) has been reported to breed only on Canada thistle (Cirsium arvense (L.) Scop.) whereas in the laboratory it breeds on species in the genera Cirsium, Carduus, and Silybum. In one laboratory choice test, L. cyanella preferred Cirsium drummondii T.&G. over Canada thistle. In one field-cage test, it concentrated feeding and oviposition on one C. drummondii which thrived in preference to three other C. drummondii and Canada thistle which grew poorly. In a second field-cage test, Canada thistle predominated and L. cyanella fed and oviposited most on Canada thistle although its intrinsic preference for C. drummondii was still apparent. A review of the field host-plants of three accidentally introduced thistle-feeding insects, Orellia ruficauda (F.), Cleonus piger Scop, and Cassida rubiginosa Müller, and the introduced biocontrol agent Rhinocyllus conicus Froel., showed that these insects, which have a wider range of hosts than has L. cyanella, concentrate breeding on introduced species of Cynareae (Compositae). Based on this evidence, it is extrapolated that L. cyanella will exploit Canada thistle and will not damage populations of native Cirsium species when established in North America.

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