scholarly journals Rearing Methods for Ageniaspis citricola (Hymenoptera: Encyrtidae) and Cirrospilus quadristriatus (Hymenoptera: Eulophidae) Released in a Classical Biological Control Program for the Citrus Leafminer Phyllocnistis citrella (Lepidoptera: Gracillariidae)

1995 ◽  
Vol 78 (4) ◽  
pp. 600 ◽  
Author(s):  
Janel M. Smith ◽  
Marjorie A. Hoy
EDIS ◽  
1969 ◽  
Vol 2004 (18) ◽  
Author(s):  
Alison Walker ◽  
Marjorie A. Hoy

The encyrtid parasitoid Ageniaspis citricola was first imported into Florida from Australia in 1994 in a classical biological control program against the citrus leafminer, Phyllocnistis citrella Stainton (Hoy and Nguyen 1994a). A second strain of Ageniaspis citricola was introduced into Florida from Taiwan in 1997, although there is no evidence that this second strain ever established (Hoy and Nguyen 1997). The citrus leafminer was first detected in Florida in 1993, and quickly spread throughout all 860,000 acres of citrus, posing a serious threat to the state's citrus industry. The population of A. citricola from Australia quickly established and dispersed throughout the state, reaching parasitism levels near 100% in some areas (Hoy et al. 1995ab, Knapp et al. 1995, Bullock et al. 1996, Pomerinke and Stansly 1998). Ageniaspis citricola is consistently the dominant parasitoid of citrus leafminer in Florida. This document is EENY-285 one of a series of Featured Creatures from the Entomology and Nematology Department, Florida Cooperative Extension Service, Institute of Food and Agricultural Sciences, University of Florida. Published: March 2003. EENY-285/IN561: Citrus Leafminer Parasitoid, Ageniaspis citricola Logvinovskaya (Insecta: Hymenoptera: Encyrtidae) (ufl.edu)


Zootaxa ◽  
2012 ◽  
Vol 3192 (1) ◽  
pp. 59 ◽  
Author(s):  
BRIAN RECTOR ◽  
RADMILA U. PETANOVIĆ

A new eriophyoid mite species, Aculops orlovacae n. sp. (Acari: Prostigmata: Eriophyidae) collected from Dipsacus laciniatus L. (Dipsacaceae) in northern Serbia, is described and illustrated, including digital micrographs depicting key morphological characters. Differential diagnosis is provided in comparison with Aculops salixis Xue, Song et Hong, Aculops rhodensis (Keifer), Aculops hussongi Keifer and Aculops oblongus (Nalepa). This is the first eriophyoid mite species in the genus Aculops described from a host plant in the family Dipsacaceae and it is only the second eriophyoid known from a host species in the genus Dipsacus L. This mite was found during surveys for natural enemies of Dipsacus spp., as part of a classical biological control program.


2017 ◽  
Vol 108 (1) ◽  
pp. 48-57 ◽  
Author(s):  
Q. Li ◽  
S.V. Triapitsyn ◽  
C. Wang ◽  
W. Zhong ◽  
H.-Y. Hu

AbstractThe flee-weevil Orchestes steppensis Korotyaev (Coleoptera: Curculionidae) is a steppe eastern Palaearctic species, notable as a serious pest of elms (Ulmus spp., Ulmaceae), by feeding on the leaves (adults) or mining them heavily (larvae), especially of Ulmus pumila L. in Xinjiang, China. We have corrected the previous misidentifications of this weevil in China as O. alni (L.) or O. mutabilis Boheman and demonstrated that it is likely to be an invasive species in Xinjiang. Prior to this study, natural enemies of O. steppensis were unknown in Xinjiang. Resulting from field investigation and rearing in the laboratory during 2013–2016, seven parasitoid species were found to be primary and solitary, attacking larval and pupal stages of the host weevil. Pteromalus sp. 2 is the dominant species and also is the most competitive among the seven parasitoids, which could considered to be a perspective biological control agent of O. steppensis. Yet, the current control of this pest by the local natural enemies in Xinjiang is still currently inefficient, even though in 2016 parasitism was about 36% on U. pumila in Urumqi, so the potential for a classical biological control program against it needs to be further investigated, including an assessment of its parasitoids and other natural enemies in the native range of O. steppensis. The presented information on the natural enemies of this weevil can be also important for a potential classical biological control program against it in North America (Canada and USA), where it is a highly damaging and rapidly spreading invasive species.


2010 ◽  
Vol 17 (2) ◽  
pp. 129-139 ◽  
Author(s):  
Stephen R. Clarke ◽  
Hai-Bin Yu ◽  
Mu-Rong Chen ◽  
Gary L. DeBarr ◽  
Jiang-Hua Sun

2020 ◽  
Vol 76 ◽  
pp. 57-98 ◽  
Author(s):  
Serguei V. Triapitsyn ◽  
Sharon A. Andreason ◽  
Nancy Power ◽  
Fatemeh Ganjisaffar ◽  
Lucian Fusu ◽  
...  

In support of a biological control program in California, USA, against the bagrada bug, Bagrada hilaris (Burmeister) (Hemiptera, Pentatomidae), an invasive pest of Asian origin, colonies of two species of Ooencyrtus Ashmead (Hymenoptera, Encyrtidae) are maintained using B. hilaris eggs as host. One of them, Ooencyrtus mirus Triapitsyn & Power, sp. nov., is of Pakistani origin. It displays natural preference for bagrada bug eggs and is being evaluated in quarantine as a candidate for classical biological control. The other, Ooencyrtus lucidus Triapitsyn & Ganjisaffar, sp. nov., appears to be native to California, and we believe it switched to B. hilaris from native pentatomid hosts. Both new species are described and illustrated, as is the Old World species Ooencyrtus telenomicida (Vassiliev), for which a neotype is designated. The presented morphometric evidence as well as mitochondrial and nuclear ribosomal DNA sequence data separate Ooencyrtus mirus from O. telenomicida. A lectotype is designated for Ooencyrtus californicus Girault from California, which is morphologically similar to O. lucidus.


EDIS ◽  
1969 ◽  
Vol 2005 (1) ◽  
Author(s):  
Alison Walker ◽  
Marjorie Hoy ◽  
Dale Meyerdirk

The papaya mealybug, Paracoccus marginatus Williams and Granara de Willink, is a small hemipteran that attacks several genera of host plants, including economically important tropical fruits and ornamentals. The papaya mealybug was discovered in Manatee and Palm Beach counties in Florida in 1998 and subsequently spread rapidly to several other Florida counties. It potentially poses a multi-million dollar threat to numerous agricultural products in Florida, as well as other states, if not controlled. Biological control was identified as a key component in a management strategy for the papaya mealybug, and a classical biological control program was initiated as a joint effort between the US Department of Agriculture, Puerto Rico Department of Agriculture, and Ministry of Agriculture in the Dominican Republic in 1999. This document is EENY-302, one of a series of Featured Creatures from the Entomology and Nematology Department, Florida Cooperative Extension Service, Institute of Food and Agricultural Sciences, University of Florida. Published: August 2003.  EENY302/IN579: Papaya Mealybug, Paracoccus marginatus Williams and Granara de Willink (Insecta: Hemiptera: Pseudococcidae) (ufl.edu)


EDIS ◽  
2013 ◽  
Vol 2013 (1) ◽  
Author(s):  
Rodrigo Diaz ◽  
Julio Medal ◽  
Kenneth Hibbard ◽  
Amy Roda ◽  
A. Fox ◽  
...  

Tropical soda apple is a prickly shrub native to South America. First reported in Glades Co., Florida in 1988, it later spread to Georgia, Alabama, Louisiana, Texas, Mississippi, Tennessee, North Carolina, and South Carolina. It is a major problem in pastures and conservation areas. Negative impacts of tropical soda apple include reduction of cattle stocking rates, competition with native plants, and the costs associated with its control. Dense thickets of the weed also can disrupt the movement of wildlife. This 4-page fact sheet provides a summary of the major steps of the successful biological control program against tropical soda apple in Florida. The article covers the importance of the weed, identification and biology of the biological control agent, rearing and release efforts, establishment and impact, and efforts to communicate the outcomes of the program to stakeholders. Written by R. Diaz, J. Medal, K. Hibbard, A. Roda, A. Fox, S. Hight, P. Stansly, B. Sellers, J. Cuda and W. A. Overholt, and published by the UF Department of Entomology and Nematology, November 2012. http://edis.ifas.ufl.edu/in971


Enfoque UTE ◽  
2020 ◽  
Vol 11 (2) ◽  
pp. 01-10
Author(s):  
Ernesto Cañarte-Bermúdez ◽  
Bernardo Navarrete-Cedeño ◽  
Silvia Montero-Cedeño ◽  
Hugo César Arredondo-Bernal ◽  
Onésimo Chávez-López ◽  
...  

Efficacy of neem on Citrus Leafminer (CLM) and effect on its parasitoid Ageniaspis citricola was evaluated, using field, cage and olfactometer tests. Treatments were: aqueous extract of neem (50 gL-1), formulated oil of neem (10 mL L-1) and control. Field study was done in a Citrus aurantifolia orchard, three applications were carried out, which were evaluated every 48 hours until ten days after the treatment. Cage and olfactometer tests were performed in a greenhouse and repeated twice each time. In the cage, it were used 50 infested Citrus reticulata plants per experimental unit, while for the olfactometer test, as experimental arena, transparent plastic jars with 20 adults of CLM inside were used. Variables evaluated were: CLM infestation, dead, live and predated larvae, pupae, emerged adults and parasitized pupal chambers. The highest mortality of the CLM was caused by the aqueous extract of neem with 77.17%, which began 48 hours after application, suggesting inhibition of feeding. The aqueous extract of neem showed in average 88.80 % of repellency of adults of CLM and neem oil 85.64%. The high mortality of CLM and the repellent effect of neem, seem to influence negatively in parasitism which fluctuated between 9.45 % and 20.16 % in treated trees.  


2015 ◽  
Vol 105 (6) ◽  
pp. 685-693 ◽  
Author(s):  
L. Goane ◽  
A. Casmuz ◽  
H. Salas ◽  
E. Willink ◽  
A. Mangeaud ◽  
...  

AbstractStudies on insect natural enemies and their effects on host populations are of immense practical value in pest management. Predation and parasitism on a citrus pest, the leafminer Phyllocnistis citrella Stainton, were evaluated by sampling over 3 years in four locations within a world leading lemon producing area in Northwest Argentina. Both mortality factors showed seasonal trends consistent across locations, with predation exerting earlier and more sustained pressure than parasitism, which showed wider seasonal variations. The dominant parasitoids, native Cirrospilus neotropicus and introduced Ageniaspis citricola, showed different seasonal trends: C. neotropicus was dominant in spring whereas A. citricola superseded it in autumn and winter. Although parasitism rates were relatively low, the native C. neotropicus revealed favourable features as potential control agent, by showing density-dependence, parasitism rates comparable with those of the specific A. citricola during part of the cycle, and earlier synchronization with the host. The study provides highly relevant information for a sustainable management of this worldwide pest, for which biological control is considered the best long-term option.


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