scholarly journals Effectiveness of Beauveria bassiana Native Isolates in the Biological Control of the Med-iterranean Fruit Fly (Ceratitis capitata)

2015 ◽  
Vol 03 (02) ◽  
pp. 44-55 ◽  
Author(s):  
Fadi Othman Qazzaz ◽  
Mohammad Ibrahim Al-Masri ◽  
Radwan Mahmoud Barakat
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.


2017 ◽  
Vol 164 (3) ◽  
pp. 340-349 ◽  
Author(s):  
Jorge Toledo ◽  
Salvador Flores ◽  
Sergio Campos ◽  
Antonio Villaseñor ◽  
Walther Enkerlin ◽  
...  

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.


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.


Author(s):  
Sabrina Chergui ◽  
Khadidja Boudjemaa ◽  
Abdelmadjid Benzehra ◽  
Ismail Karaca

Abstract Background The Mediterranean fruit fly, Ceratitis capitata (Wiedemann) (Diptera: Tephritidae), is the major insect pest of fruit production worldwide. Chemical control of this pest has induced the selection of resistant medflies populations and negative environmental impact. In addition, the use of pesticides has become an obstacle to the fresh agricultural products exported to many countries that restrict pesticides residues. The aim of this study was to propose alternatives based on the use of microbiological products for the control of C. capitata. Main body The pathogenicity of the Turkish isolate Beauveria bassiana BMAUM M6-4 was evaluated against immature stages and adult of C. capitata under laboratory conditions at a concentration of 107 conidia/ml via different routes of exposure. Conidial treatment was applied by spraying soil and filter paper against 3rd instar larvae and pupae. In contrast, the treatment was administered to adult males and females by contact and ingestion. The percentage of mortality was recorded on the 3rd, 7th, 12th and 15th day after inoculation. Obtained results showed that B. bassiana was very effective against the adult’s fly, where males were more susceptible than females in both treatments (contact and ingestion). This isolate was tested against 3rd instar larvae. It achieved an infection rate of 33.33 and 43.5% of the larvae treated on filter paper and in the soil, respectively. Application of conidial preparations to soil reduced insect emergence and CAN represent a promising strategy for fruit fly integrated management (57.33 and 56.66% emergence from the treatments in soil and filter paper). Conclusion Entomopathogenic fungi are promising as a biocontrol agent that can be used under different modes of ground application against larvae, prepupae and pupae, and/or as a bait spraying or contact against adults.


Author(s):  
Rubén Sancho ◽  
Ana Guillem-Amat ◽  
Elena López-Errasquín ◽  
Lucas Sánchez ◽  
Félix Ortego ◽  
...  

AbstractThe sterile insect technique (SIT) is widely used in integrated pest management programs for the control of the Mediterranean fruit fly (medfly), Ceratitis capitata. The genetic interactions between the released individuals from the genetic sexing strains (GSS), used for SIT applications worldwide, and wild individuals have not been studied. Under the hypothesis that a number of Vienna GSS individuals released to the field might not be completely sterile and may produce viable offspring, we have analyzed medfly Spanish field populations to evaluate the presence of Vienna strain genetic markers. To this goal, we have used contrasted nuclear and mitochondrial genetic markers, and two novel sets of nuclear polymorphisms with the potential to be markers to discriminate between Vienna and wild individuals. Nuclear Vienna markers located on the 5th chromosome of Vienna males have been found in 2.2% (19 from 875) of the Spanish wild medfly females captured at the area where SIT is applied. In addition, a female-inherited mitochondrial Vienna marker has been found in two from the 19 females showing nuclear Vienna markers. The detection of several of these markers in single individuals represents evidence of the introgression of Vienna strain into natural populations. However, alternative explanations as their presence at low frequency in wild populations in the studied areas cannot be fully discarded. The undesired release of non-fully sterile irradiated GSS individuals into the field and their interactions with wild flies, and the potential environmental implications should be taken into account in the application of the SIT.


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