The parasitoid communities associated with Ceutorhynchus species (Coleoptera: Curculionidae) in Ontario and Québec, Canada

2014 ◽  
Vol 146 (2) ◽  
pp. 224-235 ◽  
Author(s):  
P.G. Mason ◽  
J.H. Miall ◽  
P. Bouchard ◽  
A. Brauner ◽  
D.R. Gillespie ◽  
...  
Keyword(s):  
Biological Control ◽  
Species Complex ◽  
Broad Host Range ◽  
Biological Control Agents ◽  
New Host ◽  
Plant Associations ◽  
Cryptic Species Complex ◽  
Cabbage Seedpod Weevil ◽  
Parasitoid Assemblage ◽  
Accidental Introduction

AbstractSurveys were conducted in Ontario and Québec, Canada to determine the parasitoid communities associated with Ceutorhynchus Germar (Coleoptera: Curculionidae) weevil species that are potential nontarget hosts of candidate biological control agents of the cabbage seedpod weevil, Ceutorhynchus obstrictus (Marsham). New host plant associations are documented for Ceutorhynchus americanus Buchanan, Ceutorhynchus neglectus Blatchley, and Ceutorhynchus omissus Fall. More than 18 species of Chalcidoidea (Hymenoptera) were associated with six Ceutorhynchus species reared from siliques and stems of Brassicaceae plants. Silique-feeding Ceutorhynchus species supported a more diverse parasitoid community than stem-feeding or root crown-feeding species. The major components of the parasitoid assemblage of the native C. neglectus included Mesopolobus gemellus Baur and Muller, Mesopolobus moryoides Gibson, Trichomalus lucidus (Walker) (Hymenoptera: Pteromalidae) and a cryptic species complex previously reported as Necremnus tidius (Walker) (Hymenoptera: Eulophidae). These species, plus Trimeromicrus maculatus Gahan (Hymenoptera: Pteromalidae) were the main parasitoids attacking the native C. omissus. The major parasitoids associated with the accidently introduced Ceutorhynchus erysimi (Fabricius) and Ceutorhynchus typhae (Herbst) included T. maculatus, the N. tidius species complex, M. gemellus, and M. moryoides. Trichomalus perfectus (Walker) (Hymenoptera: Pteromalidae), a major parasitoid of C. obstrictus in Europe, is an accidental introduction first reared in Canada from that host in 2009 and first collected from C. omissus in 2011. Mesopolobus gemellus is shown to have a broad host range. These findings highlight the need for a cautious approach before introducing new biological control agents.

scholarly journals European ectoparasitoids of two classical weed biological control agents released in North America

2011 ◽  
Vol 143 (2) ◽  
pp. 197-210 ◽  
Author(s):  
Franck J. Muller ◽  
Peter G. Mason ◽  
Lloyd M. Dosdall ◽  
Ulrich Kuhlmann
Keyword(s):  
Biological Control ◽  
North America ◽  
Test List ◽  
Single Species ◽  
Biological Control Agents ◽  
Weed Biological Control ◽  
Feeding Niche ◽  
Important Pest ◽  
Nontarget Species ◽  
Cabbage Seedpod Weevil

AbstractThe ceutorhynchine weevils Hadroplontus litura (F.) and Microplontus edentulus (Schultze) (Coleoptera: Curculionidae), are established in North America as biological control agents for Canada thistle, Cirsium arvense (L.) Scop., and scentless chamomile, Tripleurospermum perforatum (Mérat) M. Lainz (Asteraceae), respectively. In North America, both weeds occur sympatrically and in similar habitats as another ceutorhynchine, Ceutorhynchus obstrictus (Marsham) (cabbage seedpod weevil), an important pest of canola, Brassica napus L., and Brassica rapa L. (Brassicaceae). Ceutorhynchinae weevils released to control weeds in cultivated crops may serve as alternate hosts if agents released for biological control of C. obstrictus are not specific to that species. Parasitoids associated with M. edentulus and H. litura inflict similar levels of mortality on their hosts, yet a single species was associated with the latter host, whereas 13 species attacked the former. The stem-mining M. edentulus appears to be at some risk but not the root-crown feeding H. litura, should the parasitoids Trichomalus perfectus (Walker) and Mesopolobus morys (Walker) (Hymenoptera: Pteromalidae) be introduced as biological control agents of the silique-feeding C. obstrictus. These findings suggest that feeding niche may be an important criterion for developing a nontarget species test list for host-range testing of potential biological control agents.

Recent occurrence of Aphanogmus dictynna (Waterston) (Hymenoptera: Ceraphronidae) in Kenya — an important hyperparasitoid of the coffee berry borer Hypothenemus hampei (Ferrari) (Coleoptera: Curculionidae)

Zootaxa ◽  
2009 ◽  
Vol 2214 (1) ◽  
pp. 62-68 ◽  
Author(s):  
MATTHEW L. BUFFINGTON ◽  
ANDREW POLASZEK
Keyword(s):  
Biological Control ◽  
Undescribed Species ◽  
Hypothenemus Hampei ◽  
Biological Control Agents ◽  
Coffee Berry ◽  
Coffee Berry Borer ◽  
New Host ◽  
Cephalonomia Stephanoderis ◽  
Prorops Nasuta ◽  
Recent Occurrence

The ceraphronid wasp Aphanogmus dictynna (Waterston) was recently recorded in error as an undescribed species of Aphanogmus. This species is a primary parasitoid on larvae and cocoons of the bethylid Prorops nasuta Waterston, and probably a second bethylid species, Cephalonomia stephanoderis Betrem. Both bethylids are primary parasitoids, and important biological control agents, of larvae and pupae of the coffee berry borer Hypothenemus hampei (Ferrari). New host and distribution records are provided for A. dictynna, as well as a diagnosis and comments on its taxonomic relationships.

scholarly journals Attempted new association biological control of Dicranosterna semipunctata Chapuis (Coleoptera Chrysomelidae Paropsini)

2004 ◽  
Vol 57 ◽  
pp. 248-251 ◽  
Author(s):  
B.D. Murphy ◽  
M.K. Kay
Keyword(s):  
Biological Control ◽  
Egg Parasitoid ◽  
Pest Species ◽  
Biological Control Agents ◽  
Target Species ◽  
New Host ◽  
New Association ◽  
Tortoise Beetle ◽  
Sustained Field ◽  
Laboratory Bioassays

The new association theory of biological control predicts that novel enemies may be more effective in controlling pest species than their natural enemies This theory was tested using the egg parasitoid Enoggera nassaui Girault (Hymenoptera Pteromalidae) on the Acacia tortoise beetle Dicranosterna semipunctata (Chapuis) (Coleoptera Chrysomelidae) in New Zealand In no choice laboratory bioassays parasitism on the new host was significantly lower than on a natural host Paropsis charybdis Stål (Coleoptera Chrysomelidae) (57 cf 89 eggs/h P002) The fecundity and oviposition rate of D semipunctata were approximately half that of P charybdis A field release of 1500 E nassaui directed against D semipunctata did not result in sustained field parasitism It is suspected that E nassaui will not normally encounter D semipunctata because it searches Eucalyptus not Acacia species The ability of biological control agents to locate the target species in the field needs to be considered when evaluating new association biological control

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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