Growth and Phenology of Three Lythraceae Species in Relation to Feeding by Galerucella calmariensis and Galerucella pusilla: Predicting Ecological Host Range from Laboratory Host Range Testing

2008 ◽  
Vol 1 (2) ◽  
pp. 207-215
Author(s):  
Elizabeth J. Stamm Katovich ◽  
Roger L. Becker ◽  
David W. Ragsdale ◽  
Luke C. Skinner
Keyword(s):  
Host Range ◽  
Galerucella Calmariensis ◽  
Galerucella Pusilla ◽  
Range Testing

scholarly journals Safety in New Zealand weed biocontrol a nationwide pathogen survey for impacts on nontarget plants

2009 ◽  
Vol 62 ◽  
pp. 41-49 ◽  
Author(s):  
N.W. Waipara ◽  
J. Barton ◽  
L.A. Smith ◽  
H.M. Harman ◽  
C.J. Winks ◽  
...  
Keyword(s):  
New Zealand ◽  
Host Range ◽  
Plant Pathogens ◽  
Research Programme ◽  
Disease Symptoms ◽  
Weed Biocontrol ◽  
Disease Surveys ◽  
Rubus Species ◽  
Disease Damage ◽  
Range Testing

The accuracy of host range testing in weed biocontrol programmes using plant pathogens has been questioned prompting a research programme into the field safety record of pathogens used for weed biocontrol in New Zealand Nationwide disease surveys were conducted from 20002009 and focused on species closely related to target weeds and therefore potentially most at risk of attack These surveys identified pathogens associated with any disease symptoms observed on nontarget hosts Disease damage attributable to biocontrol agents was observed on two nontarget plants Pustules of the blackberry rust Phragmidium violaceum were found on the endemic Rubus species R cissoides (bush lawyer tataramoa) at one location This result was predicted from host range safety tests conducted prior to its arrival in New Zealand No nontarget damage was observed in the remaining case studies confirming to date that all biocontrol pathogens are highly host specific to their target weeds

Effect ofGalerucellaspp. on survival of purple loosestrife (Lythrum salicaria) roots and crowns

Weed Science ◽  
1999 ◽  
Vol 47 (3) ◽  
pp. 360-365 ◽  
Author(s):  
Elizabeth J. Stamm Katovich ◽  
Roger L. Becker ◽  
David W. Ragsdale
Keyword(s):  
Plant Stress ◽  
Growing Season ◽  
Lythrum Salicaria ◽  
Purple Loosestrife ◽  
Biological Control Agents ◽  
Plant Mortality ◽  
Galerucella Calmariensis ◽  
Galerucella Pusilla ◽  
Crown Tissue ◽  
Severe Leaf

Starch levels, used as a measure of plant stress, were not consistently reduced in root or crown tissue of purple loosestrife plants after 2 yr of severeGalerucella calmariensisorGalerucella pusilla(Coleoptera: Chrysomelidae) defoliation. Early in the season, defoliation fromGalerucellaspp. approached 100%, but the majority ofLythrum salicariaplants regrew by the end of August, resulting in an average reduction of 81% of the aboveground biomass compared to the control. The stress imposed byGalerucellaspp. defoliation was less than that achieved from more severe stress imposed by mechanical shoot clipping at 2- or 4-wk intervals from June to October. Both shoot-clipping treatments killed the majority of plants after one growing season.Galerucellaspp. feeding reduced plant stature, which may reduce competitiveness. However, considering the extensive carbohydrate reserves present in the large woody crowns ofLythrum salicaria, it will require in excess of 2 yr of consistent, severe leaf defoliation to cause plant mortality. A combination of stresses, such as winter crown injury, or other biological control agents in addition toGalerucellaleaf defoliation may be required for plant mortality.

Dimethylfuran-Lactone Pheromone from Males of Galerucella calmariensis and Galerucella pusilla

2006 ◽  
Vol 32 (3) ◽  
pp. 693-712 ◽  
Author(s):  
Robert J. Bartelt ◽  
Allard A. Cossé ◽  
Bruce W. Zilkowski ◽  
David Weisleder ◽  
Stephen H. Grode ◽  
...  
Keyword(s):  
Galerucella Calmariensis ◽  
Galerucella Pusilla

scholarly journals Selecting potential nontarget species for host range testing of Eadya paropsidis

2015 ◽  
Vol 68 ◽  
pp. 179-186 ◽  
Author(s):  
T.M. Withers ◽  
G.R. Allen ◽  
C.A.M. Reid
Keyword(s):  
Biological Control ◽  
New Zealand ◽  
Host Range ◽  
Sister Group ◽  
Classical Biological Control ◽  
Invasive Pest ◽  
Weed Biological Control ◽  
Species List ◽  
Nontarget Species ◽  
Range Testing

Classical biological control is proposed for Paropsis charybdis (Coleoptera Chrysomelidae Chrysomelinae) a eucalypt pest established in New Zealand The Australian solitary larval endoparasitoid Eadya paropsidis (Hymenoptera Braconidae) is under investigation A potential nontarget species list was compiled for host range testing There are no endemic species of paropsines in the New Zealand fauna only invasive pest beetles The most closely related endemic beetles to the paropsines are Chrysomelinae in the genera Allocharis Aphilon Caccomolpus Chalcolampra and Cyrtonogetus Little is known about these species New Zealand has also introduced 12 beneficial chrysomelid weed biological control agents which include Chrysomelinae and their sister group the Galerucinae One endemic beetle six beneficial beetles and two pest beetles are listed as the highest priority species for host specificity testing

scholarly journals Comparing traditional methods of test species selection with the PRONTI tool for host-range testing of Eadya daenerys (Braconidae)

2018 ◽  
Vol 71 ◽  
pp. 221-231
Author(s):  
Toni M. Withers ◽  
Jacqui H. Todd ◽  
Belinda A. Gresham ◽  
Barbara I.P. Barratt
Keyword(s):  
Host Range ◽  
Traditional Approach ◽  
Species Selection ◽  
Selection Methods ◽  
Target Species ◽  
Test Species ◽  
Priority Ranking ◽  
Computer Based ◽  
Range Testing ◽  
Selection Of

A computer-based tool (PRONTI; Priority Ranking Of Non-Target Invertebrates) has been developed to assist the selection of invertebrate species for risk-assessment testing with entomophagous biological control agents (BCAs). PRONTI was used to produce a prioritised list of taxa for host-range testing with the braconid parasitoid Eadya daenerys, a potential BCA for the eucalypt pest, Paropsis charybdis. The resulting list was compared with a list developed using traditional species selection methods. Seven of the nine species on the traditional list were in the PRONTI top 20. The remaining two species (Agasicles hygrophila and Cassida rubiginosa) may not have been selected if the PRONTI tool had been used. These two species were on the traditional list because they are in the same family as the target and are considered valuable BCAs. Alternative BCAs were prioritised by PRONTI. The other 13 taxa prioritised by PRONTI were not on the traditional list: the taxa are little-known natives in the target subfamily or sister subfamily but larvae are presumed to be root-feeders, whereas target larvae are leaf-feeders. PRONTI can support the traditional approach by providing transparent evidence to support the selection (or rejection) of non-target species for host-range testing.

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