Psyttalia lounsburyi (Hymenoptera: Braconidae), potential biological control agent for the olive fruit fly in California

2008 ◽  
Vol 44 (1) ◽  
pp. 79-89 ◽  
Author(s):  
Kent M. Daane ◽  
Karen R. Sime ◽  
Xin-geng Wang ◽  
Hannah Nadel ◽  
Marshall W. Johnson ◽  
...  
Keyword(s):  
Biological Control ◽  
Biological Control Agent ◽  
Fruit Fly ◽  
Control Agent ◽  
Olive Fruit Fly ◽  
Olive Fruit

Evaluation ofFopius arisanusas a biological control agent for the olive fruit fly in California

2008 ◽  
Vol 10 (4) ◽  
pp. 423-431 ◽  
Author(s):  
K. R. Sime ◽  
K. M. Daane ◽  
X. G. Wang ◽  
M. W. Johnson ◽  
R. H. Messing
Keyword(s):  
Biological Control ◽  
Biological Control Agent ◽  
Fruit Fly ◽  
Control Agent ◽  
Olive Fruit Fly ◽  
Olive Fruit

Psyttalia ponerophaga (Hymenoptera: Braconidae) as a potential biological control agent of olive fruit fly Bactrocera oleae (Diptera: Tephritidae) in California

2007 ◽  
Vol 97 (3) ◽  
pp. 233-242 ◽  
Author(s):  
K.R. Sime ◽  
K.M. Daane ◽  
A. Kirk ◽  
J.W. Andrews ◽  
M.W. Johnson ◽  
...  
Keyword(s):  
Biological Control ◽  
Biological Control Agent ◽  
Fruit Size ◽  
Positive Function ◽  
Fruit Fly ◽  
Control Programme ◽  
Bactrocera Oleae ◽  
Adult Longevity ◽  
Olive Fruit Fly ◽  
Olive Fruit

AbstractThe olive fruit fly, Bactrocera oleae (Rossi), is a newly invasive, significant threat to California's olive industry. As part of a classical biological control programme, Psyttalia ponerophaga (Silvestri) was imported to California from Pakistan and evaluated in quarantine. Biological parameters that would improve rearing and field-release protocols and permit comparisons to other olive fruit fly biological control agents were measured. Potential barriers to the successful establishment of P. ponerophaga, including the geographic origins of parasitoid and pest populations and constraints imposed by fruit size, were also evaluated as part of this investigation. Under insectary conditions, all larval stages except neonates were acceptable hosts. Provided a choice of host ages, the parasitoids' host-searching and oviposition preferences were a positive function of host age, with most offspring reared from hosts attacked as third instars. Immature developmental time was a negative function of tested temperatures, ranging from 25.5 to 12.4 days at 22 and 30°C, respectively. Evaluation of adult longevity, at constant temperatures ranging from 15 to 34°C, showed that P. ponerophaga had a broad tolerance of temperature, living from 3 to 34 days at 34 and 15°C, respectively. Lifetime fecundity was 18.7±2.8 adult offspring per female, with most eggs deposited within 12 days after adult eclosion. Olive size affected parasitoid performance, with lower parasitism levels on hosts feeding in larger olives. The implications of these findings are discussed with respect to field manipulation and selection of parasitoid species for olive fruit fly biological control in California and worldwide.

Effect of the olive fruit size on the parasitism rates of Bactocera oleae (Diptera: Tephritidae) by the figitid wasp Aganaspis daci (Hymenoptera: Figitidae), and first field releases of adult parasitoids in olive grove

2020 ◽  
Vol 13 (2) ◽  
pp. 66-77
Author(s):  
C.A. Moraiti ◽  
G.A. Kyritsis ◽  
N.T. Papadopoulos
Keyword(s):  
Biological Control Agent ◽  
Fruit Size ◽  
Fruit Fly ◽  
Field Trials ◽  
Control Agent ◽  
Olive Fruit Fly ◽  
Olive Grove ◽  
Olive Fruit ◽  
Parasitism Rates ◽  
Major Pest

SummaryThe olive fruit fly Bactrocera oleae (Rossi) (Diptera: Tephritidae) is the major pest of olives worldwide. The figitid wasp, Aganaspis daci (Hymenoptera: Figitidae), is a larval-prepupal endoparasitoid of fruit fly species, and it was found to successfully parasitize medfly larvae in field-infested figs in Greece. To assess the potential of A. daci as a biological control agent against B. oleae, we studied the effect of olive fruit size on parasitism rates of A. daci on 2nd and 3rd instar larvae of B. oleae, by using fruit of different size (cultivar ‘Chalkidikis’) and wild olive fruit. In addition, we conducted releases of A. daci females in a pilot olive grove in Volos, Magnesia. From July to October, we released 200 A. daci females/0.1 ha/week, followed by olive fruit sampling to estimate olive fruit infestation levels and the parasitism rates of A. daci. Laboratory trials revealed that fruit size and larvae instar were predictors of parasitism success of A. daci, with parasitism rates higher for small-size fruit of the cultivar “Chalkidikis” and the 3rd instar larvae of B. oleae. In field trials, no A. daci adults emerged from the olive fly infested fruit.

scholarly journals Rearing of chelifers for potential biocontrol of varroa mites

2012 ◽  
Vol 65 ◽  
pp. 290-290
Author(s):  
S. Read ◽  
B.G. Howlett ◽  
B.J. Donovan ◽  
W.R. Nelson ◽  
R.F. Van_Toor ◽  
...  
Keyword(s):  
Biological Control ◽  
Acyrthosiphon Pisum ◽  
Biological Control Agent ◽  
Fruit Fly ◽  
Control Agent ◽  
Food Sources ◽  
Generalist Predators ◽  
Breeding Populations ◽  
In Captivity ◽  
Varroa Mites

Honeybee colonies infested with the varroa mite (Varroa destructor) usually collapse unless they have been treated with acaracides Resistance to the most commonly used acaracides is increasing and no biological control options are yet available Chelifers (pseudoscorpions) are generalist predators and may have potential as a biological control agent This poster describes an attempt to establish breeding populations of native chelifers which have been shown to actively feed on varroa with the ultimate aim of testing their ability as a biological control of varroa Two species of chelifers (Nesochernes gracilis and Heterochernes novaezealandiae) collected from honeybee hives and in leaf litter near apiaries at Katikati (Bay of Plenty) are being maintained in the laboratory They are surviving on a variety of different food sources such as Drosophila sp larvae (fruit fly) aphids (Acyrthosiphon pisum) and moth larvae (Helicoverpa armigera Spodoptera litura and Plodia interpunctella) With little known about raising these chelifers in captivity their diet preferences and feeding periods are being obtained as a first step to obtaining the basic information necessary for potential commercial propagation of chelifers for varroa control in honeybee hives

Non-target host risk assessment of the idiobiont parasitoidBracon celer(Hymenoptera: Braconidae) for biological control of olive fruit fly in California

2009 ◽  
Vol 19 (7) ◽  
pp. 701-715 ◽  
Author(s):  
Hannah Nadel ◽  
Kent M. Daane ◽  
Kim A. Hoelmer ◽  
Charles H. Pickett ◽  
Marshall W. Johnson
Keyword(s):  
Risk Assessment ◽  
Biological Control ◽  
Fruit Fly ◽  
Olive Fruit Fly ◽  
Olive Fruit

scholarly journals CONTROLE BIOLÓGICO DA MOSCA-DO-MEDITERRÂNEO Ceratitis capitata UTILIZANDO NEMATOIDES ENTOMOPATOGÊNICOS EM LABORATÓRIO

2011 ◽  
Vol 12 (2) ◽  
Author(s):  
Ramon Santos de MINAS ◽  
Claudia DOLINSKI ◽  
Rômulo da Silva CARVALHO ◽  
Ricardo Moreira de SOUZA
Keyword(s):  
Biological Control ◽  
Entomopathogenic Nematodes ◽  
Ceratitis Capitata ◽  
Biological Control Agent ◽  
Fruit Fly ◽  
Heterorhabditis Bacteriophora ◽  
Control Agent ◽  
Steinernema Carpocapsae ◽  
Distilled Water ◽  
Feasible Alternative

O presente trabalho avaliou em laboratório, a utilização de diferentes linhagens de nematoides entomopatogênicos (NEPs) individualmente e combinadas visando ao controle biológico da mosca-do-Mediterrâneo, Ceratitis capitata Wied. (Diptera, Tephritidae). No primeiro bioensaio foram utilizadas oito linhagens individualizadas de NEPs (Steinernema carpocapsae NCALL, Heterorhabditis bacteriophora HP88, H. baujardi LPP7, H. indica LPP1, H. indica LPP14, H. sp. LPP9, H. sp. LPP17 e H. sp. LPP12) sendo que para cada tratamento foram utilizados 20 tubos de ensaio cada um contendo areia,10 larvas L3 de C. capitata e 100 juvenis infectantes (JIs) diluídos em 1 cm3 de água destilada. No tratamento controle foi adicionado 1 cm3 de água destilada. No segundo bioensaio, foram utilizadas cinco larvas de C. capitata e as linhagens de nematoides foram combinadas duas a duas num total de 100 juvenis por repetição (50 JIs de cada linhagem) Os bioensaios foram conduzidos a 28 ºC, 80% UR e 12 de fotoperíodo. A mortalidade média das larvas foi avaliada pelo teste de Tukey a 1%. Individualmente as linhagens H. baujardi LPP7, H. indica LPP14, H. sp. LPP17 e H. sp. LPP12 foram as mais eficientes e causaram mortalidade entre 75 e 98,5%. As combinações mais eficientes foram H. indica LPP14 + H. sp. LPP9 e H. sp. LPP17 + H. sp. LPP12 com mortalidade de larvas L3 de 60 e 82%, respectivamente. Conclui-se que tanto separadamente ou em combinação, algumas linhagens de NEPs podem ser usadas no controle biológico de C. capitata, sendo que quando usadas separadamente, a eficiência é maior. ABSTRACT The present study investigated under laboratory conditions the use of entomopathogenic nematodes strains separately or in combinations, as biological control agent of Mediterranean fruit fly, Ceratitis capitata Wied. (Diptera, Tephritidae). In the first bioassay, eight strains were used separately (Steinernema carpocapsae NCALL, Heterorhabditis bacteriophora HP88, H. baujardi LPP7, H. indica LPP1, H. indica LPP14, H. sp. LPP9, H. sp. LPP17 e H. sp. LPP12). For each treatment, 20 test tubes with sand, 10 larvae of C. capitata and 100 infective juveniles (IJs) diluted in 1 cm3 of distilled water were used. In the treatment control only 1 cm3 of distilled water was added. In the second bioassay it was used the same material; however, the number of C. capitata larvae was reduced to five and strains of nematodes combined in pairs, in a total of 100 IJs per replicate (50 individuals of each strain). All treatments were stored in an incubator for 15 days (28 ºC, 80% RU and 12 h photoperiod). The average mortality of larvae L3 was evaluated by Tukey test at 1%. The strains H. baujardi LPP7, H. indica LPP14, H. sp. LPP17 and H. sp. LPP12 were the most efficient ones, reaching mortalities range between 75 and 98.5%. In the second experiment, the most effective combinations were H. indica LPP14 + H. sp. LPP9 and H. sp. LPP17 + H. sp. LPP12 with mortality of 60 and 82%, respectively. We concluded that the use of NEPs in the biological control of C. capitata is a feasible alternative either using species separated or in combination, but the first one may reach higher mortality.

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