scholarly journals Control of Mediterranean Fruit Fly Ceratitis capitata (Diptera: Tephritidae) with the Parasitoid Muscidifurax raptor (Hymenoptera: Pteromalidae) in Vineyards

HortScience ◽  
2007 ◽  
Vol 42 (6) ◽  
pp. 1400-1404 ◽  
Author(s):  
Jean Pierre Kapongo ◽  
P.G. Kevan ◽  
J.H. Giliomee

The control of Ceratitis capitata (Diptera: Tephritidae) has been mostly done with chemical insecticides and some selected natural enemies. However, these control methods are not popular because of the adverse effects of chemical controls and the unreliability of some natural enemies (Spalangia sp. and Pachycrepoideus sp.: Hymenoptera: Pteromalidae). The generalist parasitoid, Muscidifurax raptor (Hymenoptera: Pteromalidae), has been used successfully for biological control of the house fly [Musca domestica (Diptera: Muscidae)] pupae in poultry houses. Our study investigated the use of this parasitoid to control C. capitata in a vineyard. Parasitoids were released at rate of 5, 10, and 20 per m2 in a vineyard and in laboratory cages to parasitize pupae of C. capitata and M. domestica, respectively, for 2 days. The number of killed pupae of both host pests increased with the number of released parasitoids in the field. The highest rate of 20 released M. raptor resulted in 23.52% (±0.30 se) killed pupae, respectively, for house fly and fruit fly. M. raptor parasitized indiscriminately host species of pupae and the daily oviposition rate was 4.9 (±0.07 se) eggs per female. The parasitoid laid the same number of eggs as when released in poultry houses for the control of M. domestica. We conclude that M. raptor constitutes a promising biocontrol agent for the control of C. capitata in vineyards.

Author(s):  
Maguintontz Cedney Jean-Baptiste ◽  
Andressa Lima de Brida ◽  
Daniel Bernardi ◽  
Sérgio da Costa Dias ◽  
Juliano de Bastos Pazini ◽  
...  

Abstract The Mediterranean fruit fly Ceratitis capitata (Wiedemann, 1824) (Diptera: Tephritidae) is among the main pests of fruit crops worldwide. Biological control using entomopathogenic nematodes (EPNs) may be an alternative to suppress populations of this pest. Thus, the aim of this study was to evaluate the pathogenicity and virulence of six EPN isolates (Heterorhabditis bacteriophora HB, H. amazonensis IBCB-n24, Steinernema carpocapsae IBCB-n02, S. rarum PAM-25, S. glaseri IBCB-n47, and S. brazilense IBCB-n06) against C. capitata pupae. The compatibility of EPNs with different chemical insecticides that are registered for management of C. capitata was also assessed. Isolates of H. bacteriophora HB and S. brazilense IBCB-n06 at a concentration of 1,000 infective juveniles (IJ)/ml proved to be most pathogenic to C. capitata (70 and 80% mortality, respectively). In contrast, the isolates H. amazonensis IBCB-n24, Steinernema carpocapsae IBCB-n02, S. rarum PAM-25, S. glaseri IBCB-n47 provided pupal mortality of less than 60%. Bioassays to determine lethal concentrations indicated that concentrations of 600 IJ/ml (H. bacteriophora HB) and 1,000 IJ/ml (S. brazilense IBCB-n06) showed the highest virulence against C. capitata pupae. In contrast, the highest numbers of IJs emerged at concentrations of 1,200 and 200 IJ/ml. In compatibility bioassays, malathion, spinetoram, phosmet, acetamiprid, and novaluron were considered compatible with and harmless (Class 1) to H. bacteriophora HB and S. brazilense IBCB-n06, according to IOBC/WPRS. This information is important for implementing integrated management programs for C. capitata, using biological control with EPNs, whether alone or in combination with chemical insecticides.


2010 ◽  
Vol 63 ◽  
pp. 282-282
Author(s):  
T.J. Murray ◽  
T.M. Withers

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


2018 ◽  
Vol 85 (0) ◽  
Author(s):  
Laís Pacheco Sá ◽  
Clarice Diniz Alvarenga ◽  
Zenobia Cardoso dos Santos ◽  
Maria das Dores da Cruz Souza ◽  
Carlos Gustavo da Cruz ◽  
...  

ABSTRACT: The aim of the present study was to investigate the parasitism of two fruit fly species by different Diachasmimorpha longicaudata strains. Females of two parasitoid strains were reared on Ceratitis capitata or Anastrepha fraterculus that were conditioned in adapted containers. Individual parasitoids were offered 20 larvae for 1 h, using no-choice (20 C. capitata or 20 A. fraterculus) or free-choice (10 of each species) assays. Parasitism was verified by counting scars, and the pupae were classified as non-parasitized (no scars), parasitized (one scar), or superparasitized (multiple scars). Parasitism intensity was compared by evaluating the proportions of non-parasitized, parasitized, and superparasitized larvae. Parasitism intensity and scar frequency were analyzed as functions of host species and parasitoid strain, using chi-square tests. In the non-choice tests, females of both parasitoid strains parasitized the larvae, regardless of host species. However, when the parasitoids had a choice, they preferred to superparasitize A. fraterculus larvae, which are larger than C. capitata larvae. In addition, the female parasitoids parasitized most of the host larvae, regardless of parasitoid strain or host species. However, the frequency of non-parasitized pupae was higher when the offered host species was different from the one in which the parasitoid was reared, and the frequency of superparasitized pupae was higher when the offered host species was the same as the one in which the parasitoid was reared.


2011 ◽  
Vol 12 (2) ◽  
Author(s):  
Ramon Santos de MINAS ◽  
Claudia DOLINSKI ◽  
Rômulo da Silva CARVALHO ◽  
Ricardo Moreira de SOUZA

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.


2021 ◽  
Vol 31 (1) ◽  
Author(s):  
Mürşide Yağcı ◽  
Tuğba Akdeniz Fırat ◽  
F. Dolunay Erdoğuş ◽  
Müge Şahin

Abstract Background Ceratitis capitata Wiedemann (Diptera: Tephritidae) (Mediterranean fruit fly), is one of the important polyphagous pest species in the world that harms almost all fruits causing significant yields losses. Control of this pest which is on the quarantine list of many countries is highly important. Due to the negative effects of chemical control on the environment and human health, biological control approaches have gained importance. Entomopathogenic nematodes (EPNs) are a potential biological control agent that can be used for effectively controlling the Medfly. Results In this study, effects of four EPNs species on larvae, pupae and adults of Medfly were investigated under laboratory conditions. Four different concentrations of EPNs species were used against each stage of the pest. It pest showed different sensitivity to different concentrations of each of the tested EPNs. High mortality rate of 94% was caused by Heterorhabditis bacteriophora (11 KG),, followed by H. bacteriophora (TOK-20) with 91%, Steinernema carpocapsae (85%) and S. feltiae (Tokat-Emir) with 71% at highest concentration (200 IJ/larvae. The highest effect on adult mortality (100%) was recorded by the species S. feltiae (Tokat-Emir) at the highest concentration (200 IJ/adult) in the trials, followed by H. bacteriophora (11 KG) with 92%, H. bacteriophora (TOK-20) with 91% and S. carpocapsae (Tokat-Bakışlı05) with 87.37% mortality rates at the same concentrations. Conclusions It was determined that the EPNs tested in this study had insecticidal properties and they might be used in biological control programs against the Medfly.


Sign in / Sign up

Export Citation Format

Share Document