Phenological asynchrony between the fruit fly Anastrepha fraterculus and early maturing peach cultivars could contribute to pesticide use reduction

Phenological asynchrony between fruit crops and pests consists of a discrepancy between the period of fruit susceptibility and that of high pest abundance in the orchards. Therefore, it may be used for reducing pesticide applications. We assayed the potential phenological asynchrony between peach cultivars with different growing cycles and the Anastrepha fraterculus (Diptera: Tephritidae). To this end, we assessed fruit infestation by A. fraterculus at harvest for one growing season (2012-2013) in early, average and late maturing peach cultivars. Moreover, the fruit infestation was checked for non-cultivated native and non-cultivated wild exotic plant hosts around the peach orchards of the experimental area during 2013 and 2014. In addition, we monitored A. fraterculus abundance weekly during three consecutive growing seasons, S1 (2011-2012), S2 (2012-2013) and S3 (2013-2014), to assess phenological asynchrony between peach cultivars and A. fraterculus. In particular, we checked the influence of meteorological variables on A. fraterculus abundance, and tested if A. fraterculus abundance at the time when fruits are susceptible differed among cultivars. Eventually we discuss the possibility of sustainable management of peach in southern Brazil. This study constitutes a first assessment of the periods of crop vulnerability and pest presence in peach orchards in South of Brazil and provides necessary information for taking advantage of the phenological asynchrony phenomenon for this pest-crop association.

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Effect of food lures for monitoring of Anastrepha fraterculus (Diptera: Tephritidae) in Acca sellowiana (Myrtaceae)

Revista Colombiana de Entomología ◽

10.25100/socolen.v43i2.5944 ◽

2017 ◽

Vol 43 (2) ◽

pp. 201

Author(s):

Joatan Machado da Rosa ◽

Cristiano João Arioli ◽

Aline Costa Padilha ◽

Lenita Agostinetto ◽

Marcos Botton

Keyword(s):

Grape Juice ◽

Fruit Fly ◽

Fruit Flies ◽

Capture Efficiency ◽

Southern Brazil ◽

Hydrolyzed Protein ◽

Anastrepha Fraterculus ◽

Effect Of Food ◽

Action Thresholds ◽

Acca Sellowiana

The South American fruit fly, Anastrepha fraterculus (Diptera: Tephritidae) stands out for its polyphagous habit of damaging the production of several fruits in southern Brazil. This study aimed to evaluate the capture efficiency of A. fraterculus using grape juice at different periods of decomposition and aging as well as to test the capture efficiency of the enzymatic hydrolyzed protein Cera Trap® in feijoa crops. The work was conducted in a commercial feijoa orchard in São Joaquim, SC, Brazil during the 2014 growing season. Undiluted Cera Trap®, fresh grape juice and grape juice that had aged for 7 and 14 days were evaluated. All of the treatments with grape juice were used at the recommended concentration of 25 %. McPhail traps were used with 300 mL for each lure. On a weekly basis, the number of adults and the percentage of female fruit flies captured were evaluated, using identification and counting. Cera Trap® was the lure that captured the highest number of fruit flies, with a high percentage of females and with a higher frequency of captures during the season. Cera Trap® also showed the highest number of action thresholds compared to grape juice treatments. The 25 % fresh and aged grape juice showed a low number of captures and a low number of action thresholds. We conclude that fresh and aged grape juice were not effective for capturing and monitoring A. fraterculus in feijoa orchards. The Cera Trap® lure proves to be an alternative to improve monitoring of A. fraterculus in orchards in southern Brazil.

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The influence of prior experience with artificial fruits on the ovipositioning behavior of Anastrepha fraterculus (Diptera, Tephritidae)

Iheringia Série Zoologia ◽

10.1590/s0073-47212012000200004 ◽

2012 ◽

Vol 102 (2) ◽

pp. 138-141 ◽

Cited By ~ 1

Author(s):

Patrícia L. F. Gregório ◽

Josué Sant'Ana ◽

Luiza R. Redaelli ◽

Thiago D. N. Idalgo

Keyword(s):

Prunus Persica ◽

Prior Experience ◽

Fruit Fly ◽

South American ◽

Fruit Crops ◽

The South ◽

Anastrepha Fraterculus ◽

South American Fruit Fly

The South American fruit fly, Anastrepha fraterculus (Wiedemann, 1830) (Diptera, Tephritidae), is a leading pest of Brazilian fruit crops. This study evaluated how prior experience with artificial fruits containing peach and/or guabiroba pulp influenced the ovipositing behavior of A. fraterculus. Insects 15-21 days old were exposed to four treatments: 1) experience with guabiroba, Campomanesia xanthocarpa O. Berg (Myrtaceae); 2) experience with peach, Prunus persica (L.) Batsch (Chimarrita cultivar; Rosaceae); 3) experience with both fruits; and 4) no experience (naive). Naive females and females experienced with guabiroba pulp and with both fruits (peach and guabiroba) oviposited and showed dragging and puncturing behavior on substrates containing guabiroba, but females that were only exposed to peach pulp did not show a preference for any substrate. The study shows that prior experience with substrate influences ovipositing behavior in A. fraterculus.

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Ovipositional Behaviour of Two Fruit Flies, Ceratitis capitata and Anastrepha fraterculus, in Seven Fruit Hosts in the Laboratory

Annual Research & Review in Biology ◽

10.9734/arrb/2020/v35i1130303 ◽

2020 ◽

pp. 93-102

Author(s):

Ester Marques de Sousa ◽

Léo Rodrigo Ferreira Louzeiro ◽

Miguel Francisco de Souza- Filho ◽

Adalton Raga

Keyword(s):

Ceratitis Capitata ◽

Sweet Orange ◽

Fruit Fly ◽

Fruit Flies ◽

Fruit Crops ◽

Specific Knowledge ◽

Egg Deposition ◽

Anastrepha Fraterculus ◽

Ovipositional Preference ◽

Acid Lime

Anastrepha fraterculus (Wiedemann) and Ceratitis capitata (Wiedemann) are the most commonly found fruit fly species in fruit crops in Brazil. Both polyphagous species show similar host ranges, but specific knowledge regarding the ovipositional preference of either species is scarce. The present study aims to evaluate, in the laboratory, ovipositional behaviours in seven fruit host submitted to infestation by A. fraterculus and C. capitata. Except for C. capitata in Tahiti acid lime, the number of punctures containing eggs exceeded the number of punctures without eggs. The highest values for eggs per puncture were obtained in Fuyu persimmon, for which averages of 4.06 and 50.09 eggs per puncture were deposited by A. fraterculus and C. capitata, respectively. For A. fraterculus, the infestation ranking, based on the number of eggs per puncture from high to low, was Fuyu persimmon > papaya > Tahiti acid lime > carambola > coffee > guava > sweet orange. For C. capitata, the infestation ranking was Fuyu persimmon > carambola > papaya > guava > sweet orange > coffee > Tahiti acid lime. All punctures made to carambola and papaya contained eggs. Sweet orange exhibited the maximum number of punctures of A. fraterculus without egg deposition. The first day of medfly oviposition in Fuyu persimmon resulted in approximately three-fold more eggs per puncture than the second, third, and fourth days.

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Cyclone Bomb hits Southern Brazil in 2020

Journal of Atmospheric Science Research ◽

10.30564/jasr.v3i3.2163 ◽

2020 ◽

Vol 3 (3) ◽

Author(s):

Ricardo Gobato ◽

Alireza Heidari

Keyword(s):

High Pressure ◽

Atmospheric Pressure ◽

High Speed ◽

Satellite Images ◽

The State ◽

Southern Brazil ◽

Santa Catarina ◽

High Area ◽

South Of Brazil ◽

Rapid Drop

An “explosive extratropical cyclone” is an atmospheric phenomenon that occurs when there is a very rapid drop in central atmospheric pressure. This phenomenon, with its characteristic of rapidly lowering the pressure in its interior, generates very intense winds and for this reason it is called explosive cyclone, bomb cyclone. With gusts recorded of 116 km/h, atmospheric phenomenon – “cyclone bomb” (CB) hit southern Brazil on June 30, the beginning of winter 2020, causing destruction in its influence over. One of the cities most affected was Chapecó, west of the state of Santa Catarina. The satellite images show that the CB generated a low pressure (976 mbar) inside it, generating two atmospheric currents that moved at high speed. In a northwest-southeast direction, Bolivia and Paraguay, crossing the states of Parana and Santa Catarina, and this draft that hit the south of Brazil, which caused the destruction of the affected states. Another moving to Argentina, southwest-northeast direction, due to high area of high pressure (1022 mbar). Both enhanced the phenomenon.

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Effectiveness of Entomopathogenic Nematodes Against Ceratitis capitata (Diptera: Tephritidae) Pupae and Nematode Compatibility with Chemical Insecticides

Journal of Economic Entomology ◽

10.1093/jee/toaa301 ◽

2021 ◽

Author(s):

Maguintontz Cedney Jean-Baptiste ◽

Andressa Lima de Brida ◽

Daniel Bernardi ◽

Sérgio da Costa Dias ◽

Juliano de Bastos Pazini ◽

...

Keyword(s):

Biological Control ◽

Entomopathogenic Nematodes ◽

Ceratitis Capitata ◽

Integrated Management ◽

Fruit Fly ◽

Steinernema Carpocapsae ◽

Mediterranean Fruit Fly ◽

Fruit Crops ◽

Class 1 ◽

Pupal Mortality

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.

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Determining the Sterilization Doses under Hypoxia for the Novel Black Pupae Genetic Sexing Strain of Anastrepha fraterculus (Diptera, Tephritidae)

Insects ◽

10.3390/insects12040308 ◽

2021 ◽

Vol 12 (4) ◽

pp. 308

Author(s):

Paloma Della Giustina ◽

Thiago Mastrangelo ◽

Sohel Ahmad ◽

Gabriel Mascarin ◽

Carlos Caceres

Keyword(s):

Fruit Fly ◽

South American ◽

Response Curves ◽

Genetic Sexing ◽

Egg Hatch ◽

Anastrepha Fraterculus ◽

Common Strategy ◽

Genetic Sexing Strain ◽

South American Fruit Fly ◽

First Time

A common strategy used to maintain sterile fly quality without sacrificing sterility is to irradiate the insects under an oxygen-reduced atmosphere. So far, sterilizing doses for the South American fruit fly Anastrepha fraterculus have only been determined under normoxia. Our study reports for the first time the dose-sterility response under hypoxia for two different A. fraterculus strains. The pupae were derived from a bisexual strain (a Brazilian-1 population) and a recently developed genetic sexing strain (GSS-89). Two hours prior to irradiation, pupae were transferred to sealed glass bottles and irradiated when oxygen concentration was below 3%. Four types of crosses with nonirradiated flies of the bisexual strain were set to assess sterility for each radiation dose. For males from both strains, Weibull dose–response curves between radiation doses and the proportion of egg hatch, egg-to-pupa recovery, and recovery of adults were determined. The GSS males revealed high sterility/mortality levels compared to males from the bisexual strain at doses < 40 Gy, but a dose of 74 Gy reduced egg hatch by 99% regardless of the male strain and was considered the sterilizing dose. The fertility of irradiated females was severely affected even at low doses under hypoxia.

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Pest detection and classification to reduce pesticide use in fruit crops based on deep neural networks and image processing

10.1109/rpic53795.2021.9648485 ◽

2021 ◽

Author(s):

Agustina Suarez ◽

Romina Soledad Molina ◽

Giovanni Ramponi ◽

Ricardo Petrino ◽

Luciana Bollati ◽

...

Keyword(s):

Neural Networks ◽

Image Processing ◽

Deep Neural Networks ◽

Pesticide Use ◽

Fruit Crops ◽

Pest Detection

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Age and time exposure-related toxicity of fenthion to male and female Anastrepha fraterculus (Wied.) (Diptera: Tephritidae)

Anais da Sociedade Entomológica do Brasil ◽

10.1590/s0301-80591999000200011 ◽

1999 ◽

Vol 28 (2) ◽

pp. 285-292 ◽

Cited By ~ 3

Author(s):

Eduardo Humeres ◽

Ivana B.M. Da Cruz ◽

Alice K. de Oliveira

Keyword(s):

Cumulative Effect ◽

Fruit Fly ◽

Biological Traits ◽

Male And Female ◽

Time Exposure ◽

Anastrepha Fraterculus ◽

Detoxification Mechanism ◽

Males And Females ◽

Effect Of Age ◽

Realistic Data

Effect of age, sex and time exposure of Anastrepha fraterculus (Wied.) to toxicity of fenthion was evaluated. The age of the flies was important to the appearance of the first intoxication symptoms; males and females of reproductive ages (30 and 60 days-old, respectively) were less susceptible to insecticide than flies in the remainder ages (four and 120 days-old). The effect of body weight on insect intoxication was not detected. LT 50 biossay with fenthion (varying from 3-7 minutes) showed a lower susceptibility of males than females at all ages. Adults of both sexes and 30 days-old submitted to continuous and discontinuous exposure to fenthion did not show toxic cumulative effect of the insecticide. The statistical analysis suggests a possible general detoxification mechanism (quantitative and/or qualitative) to fenthion sex-, age- and time-related. Once the species is highly mobile in nature we suggest that in fruit fly toxicological bioassays, these biological traits need to be observed in order to obtain more realistic data.

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The Survival of Mediterranean Fruit Fly (Diptera: Tephritidae) Over Winter in Western Australia

Environmental Entomology ◽

10.1093/ee/nvz060 ◽

2019 ◽

Vol 48 (4) ◽

pp. 977-987

Author(s):

Touhidur Rahman ◽

Sonya Broughton

Keyword(s):

Western Australia ◽

Best Management Practices ◽

Management Practices ◽

Field Experiments ◽

Geographical Location ◽

Citrus Fruit ◽

Fruit Fly ◽

Mediterranean Fruit Fly ◽

Fruit Crops ◽

Mild Winter

Abstract The Mediterranean fruit fly, Ceratitis capitata (Wiedemann) (Diptera: Tephritidae) is one of the most economically important pest insects of fruit crops worldwide. Mediterranean fruit fly can cause up to 100% crop loss in susceptible fruit. In order to formulate best management practices, it is critical to understand how Mediterranean fruit fly overwinters in a given geographical location and bridge the gap between autumn and spring populations. In this study, we evaluated the overwintering potential of Mediterranean fruit fly immature and adult stages in two locations in Perth Hills, Western Australia. We also monitored wild adult Mediterranean fruit fly populations for 2 yr. Adults were present year-round with captures very low in winter to early spring relative to summer and autumn. Field experiments revealed that immature stages in apples (eggs/first instar) and soil (pupae) remained viable in winter, emerging as adults at the onset of warmer weather in spring. In field cages, adults survived 72–110 d, and female laid viable eggs when offered citrus fruit, though only 1–6% eggs survived to emerge as adults. Adults survived longer in field cages when offered live citrus branch. The findings suggest that all Mediterranean fruit fly life stages can survive through mild winter, and surviving adults, eggs in the fruit and/or pupae in the soil are the sources of new population that affect the deciduous fruit crops in Perth. We recommend that Mediterranean fruit fly monitoring is required year-round and control strategies be deployed in spring. Furthermore, we recommend removal of fallen fruit particularly apple and other winter fruit such as citrus.

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Toxicity and residual effects of toxic baits with spinosyns on the South American fruit fly

Pesquisa Agropecuária Brasileira ◽

10.1590/s0100-204x2018000200002 ◽

2018 ◽

Vol 53 (2) ◽

pp. 144-151 ◽

Cited By ~ 5

Author(s):

Inana Xavier Schutze ◽

Cléber Antonio Baronio ◽

Morgana Mattiello Baldin ◽

Alci Enimar Loek ◽

Marcos Botton

Keyword(s):

Residual Effect ◽

Fruit Fly ◽

Residual Effects ◽

South American ◽

Sugarcane Molasses ◽

Anastrepha Fraterculus ◽

Lethal Time ◽

The One ◽

Food Lures ◽

South American Fruit Fly

Abstract: The objective of this work was to assess the lethal concentration and lethal time (LC and LT) of spinosad and spinetoram, combined with different food lures, and their residual effects on South American fruit fly (Anastrepha fraterculus). The toxic baits were offered in eight concentrations (2, 6, 14, 35, 84, 204, 495, and 1,200 mg L-1), combined with the following food lures: 7% sugarcane molasses, 3% Biofruit, 1.5% CeraTrap, 1.25% Flyral, 3% Samaritá Bait, and 3% Samaritá Tradicional; diluted food lures in water were used as controls. The residual effect of the formulations at 96 mg L-1 concentration were evaluated for 21 days and were compared with that of the commercial bait Success 0.02 CB. Both insecticides were toxic to adults of A. fraterculus, and mortality varied with the food lure used. The LC50and LT50ranged from 15.19 to 318.86 mg L-1and from 11.43 to 85.93 hours, respectively. Spinosad was 2 to 36 times as toxic as spinetoram when combined with different hydrolyzed proteins. Toxic baits formulated with spinosad and spinetoram (96 mg L-1) caused mortality equivalent to the one by Success 0.02 CB (90.2%), when assessed on the day of application. Toxic baits formulated with 3% Biofruit + spinosad and 3% Samaritá Bait + spinetoram are effective for managingA. fraterculusand provide up to seven days of residual effect in the absence of rain; however, only Success 0.02 CB caused more than 80% mortality for up to 21 days.

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