scholarly journals Better biological control in glasshouses: synergies between biological control agents from different guilds and floral resources

2019 ◽  
Vol 72 ◽  
pp. 280
Author(s):  
Emiliano R. Veronesi ◽  
Oluwashola Olaniyan ◽  
Stephen D. Wratten ◽  
Melanie Davidson ◽  
Chris Thompson
Keyword(s):  
Biological Control ◽  
New Zealand ◽  
Single Species ◽  
Trophic Levels ◽  
Floral Resources ◽  
Bactericera Cockerelli ◽  
Biological Control Agents ◽  
Major Pest ◽  
Mirid Bug ◽  
Multiple Species

The tomato/potato psyllid (TPP), Bactericera cockerelli (Hemiptera, Triozidae), is an adventive psyllid in New Zealand that is a major pest of solanaceous crops and a serious threat to growers in the glasshouse industry. Worldwide, evaluation of potential biological control (BC) agents is normally conducted using single species and this is the case with some potential BC agents for TPP. However, the idea that multiple species can act synergistically remains largely untested so that is the aim of the current work, which is funded by Tomatoes New Zealand. The introduced parasitoid Tamarixia triozae is a BC agent of TPP that attacks mainly late instars. It lives for just 1 day when provided with water but can live up to 11 days (and consume more pests) when nectar in the flowers of buckwheat (Fagopyrum esculentum) is provided. In addition, another potential BC agent, the mirid bug Engytatus nicotianae, prefers young nymphal instars, while the ladybird Cleobora mellyi is voracious and consumes all instars. We are testing combinations of these species to understand the potential for synergies between and within trophic levels for better biological control.

scholarly journals Importing Tamarixia triozae into containment in New Zealand

2009 ◽  
Vol 62 ◽  
pp. 412-412 ◽  
Author(s):  
P.J. Workman ◽  
S.A. Whiteman
Keyword(s):  
Biological Control ◽  
New Zealand ◽  
Biological Control Agent ◽  
Classical Biological Control ◽  
Control Agent ◽  
Bacterial Disease ◽  
Potato Psyllid ◽  
Bactericera Cockerelli ◽  
Major Pest ◽  
Host Specificity Testing

The parasitoid Tamarixia triozae (Burks) (Hymenoptera Eulophidae) has been imported from Mexico into containment in New Zealand as a potential biological control agent for the tomato/potato psyllid Bactericera cockerelli (Sulk) (Hemiptera Triozidae) The tomato/potato psyllid is a North American pest that was first reported in New Zealand in 2006 This psyllid has been found to vector the bacterial disease Candidatus Liberibacter solanacearum or psyllarous and has now become a major pest on both greenhouse and outdoor solanaceous crops Inundative releases of T triozae have been used to control the tomato/potato psyllid in greenhouse crops in North America In New Zealand this parasitoid may also have potential for the classical biological control of this psyllid Data to support an application for the full release of this parasitoid will be obtained by comparing the efficacy of T triozae and an undescribed species of Tamarixia found in New Zealand in 1997; establishing the ability of T triozae to parasitise the tomato/potato psyllid on capsicums tomatoes and potatoes; and undertaking host specificity testing using indigenous psyllids Approval to import T triozae was obtained under the HSNO Act 1996 and HSNO Order 1998 (ERMA Approval Code NOC00253039) and the Biosecurity Act 1993 (MAF Biosecurity Permit to Import Live Animals 2008035896)

Biological control of sapstain fungi with natural products and biological control agents: a review of the work carried out in New Zealand

2002 ◽  
Vol 106 (2) ◽  
pp. 228-232 ◽  
Author(s):  
Joël L. Vanneste ◽  
Robert A. Hill ◽  
Stuart J. Kay ◽  
Roberta L. Farrell ◽  
Patrick T. Holland
Keyword(s):  
Biological Control ◽  
Natural Products ◽  
New Zealand ◽  
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.

scholarly journals Genetic and morphological studies ofTrichosirocalusspecies introduced to North America, Australia and New Zealand for the biological control of thistles

2015 ◽  
Vol 106 (1) ◽  
pp. 99-113 ◽  
Author(s):  
A. De Biase ◽  
E. Colonnelli ◽  
S. Belvedere ◽  
A. La Marca ◽  
M. Cristofaro ◽  
...  
Keyword(s):  
Biological Control ◽  
New Zealand ◽  
Host Plants ◽  
Biological Control Agent ◽  
Molecular Genetic ◽  
Elongation Factor ◽  
Single Species ◽  
Distinct Species ◽  
Molecular Evidence ◽  
Morphological Studies

AbstractTrichosirocalus horridussensu lato has been used as a biological control agent of several invasive thistles (Carduusspp.,Cirsiumspp. andOnopordumspp.) since 1974. It has been recognized as a single species until 2002, when it was split into three species based on morphological characters:T. horridus, Trichosirocalus brieseiandTrichosirocalus mortadelo, each purported to have different host plants. Because of this taxonomic change, uncertainty exists as to which species were released in various countries; furthermore, there appears to be some exceptions to the purported host plants of some of these species. To resolve these questions, we conducted an integrative taxonomic study of theT. horridusspecies complex using molecular genetic and morphological analyses of specimens from three continents. Both mitochondrial cytochrome c oxidase subunit I and nuclear elongation factor 1α markers clearly indicate that there are only two distinct species,T. horridusandT. briesei. Molecular evidence, morphological analysis and host plant associations support the synonymy ofT. horridus(Panzer, 1801) andT. mortadeloAlonso-Zarazaga & Sánchez-Ruiz, 2002. We determine thatT. horridushas been established in Canada, USA, New Zealand and Australia and thatT. brieseiis established in Australia. The former species was collected fromCarduus, CirsiumandOnopordumspp. in the field, whereas the latter appears to be specific toOnopordum.

scholarly journals Importation to New Zealand quarantine of a candidate biological control agent of clover root weevil

2001 ◽  
Vol 54 ◽  
pp. 147-151 ◽  
Author(s):  
S.L. Goldson ◽  
C. Phillips ◽  
M.M. McNeill ◽  
J.R Proffitt ◽  
R.P. Cane
Keyword(s):  
Genetic Diversity ◽  
Biological Control ◽  
New Zealand ◽  
Biological Control Agent ◽  
Genetic Material ◽  
Control Agent ◽  
Biological Control Agents ◽  
Sitona Lepidus ◽  
Clover Root ◽  
Microctonus Aethiopoides

Several candidate biological control agents of Sitona lepidus have been identified since a search commenced in 1997 Interestingly Microctonus aethiopoides from Europe is a much more effective parasitoid of S lepidus than the M aethiopoides ecotype already established in New Zealand To assess further the suitability of the European M aethiopoides for biological control of S lepidus 1599 infected S lepidus were shipped to New Zealand quarantine during late 2000 These yielded 267 parasitoid pupae from which 204 adult parasitoids were reared This material was obtained from a wide geographical range in Europe and has been used to establish cultures in New Zealand quarantine based on genetic material from France England Norway Finland Romania Ireland Scotland Italy and Wales This contribution presents an overview of the work associated with the importation of the parasitoids and the effort now being made to maintain genetic diversity Planned research is also discussed

scholarly journals Detection and identification of a selfintroduced parasitoid of the Acacia tortoise beetle

2010 ◽  
Vol 63 ◽  
pp. 282-282
Author(s):  
T.J. Murray ◽  
T.M. Withers
Keyword(s):  
Biological Control ◽  
New Species ◽  
New Zealand ◽  
Natural Enemies ◽  
Biocontrol Agent ◽  
Biological Control Agents ◽  
The Third ◽  
Acacia Melanoxylon ◽  
Detection And Identification ◽  
Tortoise Beetle

Dicranosterna semipunctata (Coleoptera Chrysomelidae) was detected in New Zealand in 1996 This Australian tortoise beetle has no specific natural enemies in New Zealand and has become a moderate pest of blackwood (Acacia melanoxylon) Although a number of potential biological control agents have been identified in Australia none has been intentionally introduced In January 2009 parasitised eggs of D semipunctata were found in Rotorua Comparison of the emergent parasitoids to hymenoptera held in the NZIC and ANIC confirm that the wasp is from the genus Neopolycystus The taxonomy of this genus is poorly resolved but there were three species of particular interest to which to compare the new specimens The first Neopolycystus sp nr insectifurax was introduced from Perth against Paropsis charybdis in 1989 but did not establish The second Neopolycystus sp was reared from D semipunctata eggs in NSW but was never imported into New Zealand as a biocontrol agent for D semipunctata The third N insectifurax Girault is selfintroduced since 2001 and is well established in New Zealand contributing significantly to the control of P charybdis The parasitoids reared from D semipunctata eggs in Rotorua were not analogous to any of these This new species Neopolycystus sp from Rotorua has since been recorded in the Northland Auckland Waikato and Bay of Plenty regions

scholarly journals Sleeper thistles in New Zealand status and biocontrol potential

2013 ◽  
Vol 66 ◽  
pp. 99-104 ◽  
Author(s):  
M.G. Cripps ◽  
G.W. Bourd?t ◽  
S.V. Fowler
Keyword(s):  
Biological Control ◽  
New Zealand ◽  
Exotic Species ◽  
Classical Biological Control ◽  
The Novel ◽  
Biological Control Agents ◽  
Target Species ◽  
Specific Target ◽  
Biocontrol Potential

Globally the thistle tribe Cardueae (Asteraceae) contains approximately 2500 species of which at least 339 have weed status In New Zealand 63 of these are present but only nine are recognised problems with the remainder being potential threats or quot;sleeper weedsquot; To evaluate these potential threats the 339 global thistle weeds were ranked from most to least important based on an assigned Index of Weed Importance and grouped into five weed importance categories Extreme High Moderate Low and Minor Of the global species in these categories 94 56 28 19 and 7 respectively are present in New Zealand and mitigating the most serious potential threats would be prudent An option is the novel use of classical biological control agents that specialise on the thistle tribe rather than specific target species This is feasible for New Zealand because in the tribe Cardueae there are no natives and few economicallyvalued exotic species

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