Pre‐emptive host‐specificity testing of Trissolcus japonicus (Ashmead) (Hymenoptera: Scelionidae) reveals high parasitism levels against the endemic New Zealand alpine shield bug in laboratory no‐choice tests

2021 ◽  
Author(s):  
Thomas E Saunders ◽  
Gonzalo A Avila ◽  
Gregory I Holwell
Keyword(s):  
New Zealand ◽  
Host Specificity ◽  
Choice Tests ◽  
Trissolcus Japonicus ◽  
Host Specificity Testing

scholarly journals Retrospective host specificity testing of Cotesia urabae to assess the risk posed to the New Zealand nolid moth Celama parvitis

2014 ◽  
Vol 67 ◽  
pp. 328-328
Author(s):  
G.A. Avila ◽  
T.M. Withers ◽  
G.I. Holwell
Keyword(s):  
Biological Control ◽  
New Zealand ◽  
Host Specificity ◽  
Potential Risk ◽  
Biological Control Agent ◽  
Control Agent ◽  
Laboratory Rearing ◽  
Host Deprivation ◽  
Retrospective Testing ◽  
Host Specificity Testing

Additional retrospective testing of the gum leaf skeletoniser (Uraba lugens) biological control agent Cotesia urabae was conducted against the endemic moth Celama parvitis Although this native was included in host specificity testing before EPA approved the parasitoids release this work aimed to increase the sample size to better assess the potential risk posed The effect that different periods of host deprivation and prior oviposition experience had on the parasitoids readiness to attack was examined in a sequence of nochoice tests No parasitoids emerged from the 52 of larvae that survived to pupation thus confirming C parvitis as a nonhost Dissections of larvae that died during laboratory rearing revealed that 63 had contained a parasitoid but no C urabae parasitoid larvae developed beyond the second instar Significant differences were found in the attack times according to the parasitoids deprivation levels (age) and it was also observed that the duration until first attack significantly decreased after each nontarget presentation

An analysis of the genus Leucothoe Leach, 1814 (Amphipoda: Leucothoidae) in New Zealand, with the description of two new species symbiotic with ascidians and sponges

2020 ◽  
Author(s):  
Ronja Hauke ◽  
Rachael A Peart ◽  
Ken G Ryan
Keyword(s):  
New Species ◽  
New Zealand ◽  
Host Specificity ◽  
Two New Species

Abstract Leucothoids (family Leucothoidae Dana, 1852) are amphipods often associated with sponges and are relatively poorly recorded in New Zealand waters, with only four species previously recorded. Two newly discovered species, Leucothoe agripeta  sp. nov. and L. tumultus  sp. nov. are described from a sponge off Aotea Quay, Wellington, New Zealand and an ascidian from the Chatham Rise, eastern New Zealand, respectively. Leucothoe traillii  Thomson, 1881 is redescribed and a neotype assigned. A key to the New Zealand species of Leucothoe as well as a discussion of their host-specificity and ecology are also provided.

Statistical tools to interpret risks that arise from rare events in host specificity testing

2013 ◽  
Vol 64 (3) ◽  
pp. 177-185 ◽  
Author(s):  
Toni M. Withers ◽  
Colleen A. Carlson ◽  
Belinda A. Gresham
Keyword(s):  
Host Specificity ◽  
Rare Events ◽  
Statistical Tools ◽  
Host Specificity Testing
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