scholarly journals Improvement of Management of Rhagoletis Cerasi in Bosnia and Herzegovina Based on a Phenological Model

2017 ◽  
Vol 71 (3) ◽  
pp. 229-232
Author(s):  
Branimir Nježić ◽  
Dušan Pećanin ◽  
Gordana Ðurić
Keyword(s):  
Bosnia And Herzegovina ◽  
Proper Time ◽  
Local Population ◽  
Sour Cherry ◽  
Fruit Fly ◽  
Pesticide Application ◽  
Phenological Model ◽  
Thermal Thresholds ◽  
Time Of Application ◽  
Rhagoletis Cerasi

Abstract European cherry fruit fly (Rhagoletis cerasi) is the key pest of sweet and sour cherry throughout Europe. Pest management is usually based on pesticide application. The key of successful management is knowing the proper time of pesticide application, based on the phenological model. To develop a phenological model, a local population of the pest from the northern part of Bosnia and Herzegovina was studied. First adult appearance and population densities were monitored by yellow sticky traps. Soil and air temperatures were compared at two thermal thresholds, 5 °C and 7 °C. Air temperature was applied in the model since it is more suitable for farmers and is related to soil temperature. Both thermal thresholds can be used. The first adult flies were captured after 435 degree-days (dd) and the first cumulative 5% of the catch after 605 dd. These two times should be considered for time of application of pesticides. Regarding time for first egg hatch, the first larva burrowed into fruits at 730 dd. Cultivars that can be harvested beginning on the 730 dd calculate from 1 March are considered to have low risk of cherry fruit fly damage.

scholarly journals Rhagoletis cerasi Loew (Diptera: Tephritidae): Biological characteristics, harmfulness and control

2012 ◽  
Vol 27 (4) ◽  
pp. 269-281 ◽  
Author(s):  
Svetomir Stamenkovic ◽  
Pantelija Peric ◽  
Drago Milosevic
Keyword(s):  
Sweet Cherry ◽  
Sour Cherry ◽  
Fruit Fly ◽  
Biological Characteristics ◽  
Control Measures ◽  
Activity Period ◽  
Distribution Area ◽  
Fruit Species ◽  
Infestation Intensity ◽  
Rhagoletis Cerasi

The European cherry fruit fly, Rhagoletis cerasi Loew (Diptera: Tephritidae), is a highly destructive pest in sweet and sour cherry orchards with a distribution area throughout Europe and the temperate regions of Asia. It occurs regularly in all production regions of these fruit species in Serbia, damaging up to 10% of cherries in commercial production, while damage can go up to 100% in orchards and on solitary threes unprotected by control measures. In Serbia, European cherry fruit fly most often attacks and damages fruits of the lateripening cultivars of sweet cherry (Van, Stela, Hedelfinger, Bing, Lambert, Drogan?s Yellow). After a sweet cherry harvest, adults migrate to sour cherry where they continue feeding and ovipositing in half-mature sour cherries (prevailingly the domestic ecotype Oblacinska). During their activity period, larvae damage the fruits, so that they can no longer be consumed either fresh or processed. The high percentage of sour cherries damaged by R. cerasi has become a factor limiting exports because the intensity of infestation of this fruit exceeds permissible limits. Pesticide use for controlling this pest, especially in integrated production, is based on a very poor selection of insecticides which cause problems with residual ecotoxicity. Consequently, alternative measures for controlling European cherry fruit fly have been intensively studied over the past few years. This work surveys up-to-date results of various studies on the European cherry fruit fly as a very important pest in Serbia and other South and Mid-European countries. The work contains detailed descriptions of its biological characteristics, flight phenology, infestation intensity and possibilities of fly control in sweet and sour cherry production areas.

Genetic and cytogenetic analysis of the fruit fly Rhagoletis cerasi (Diptera: Tephritidae)

Genome ◽  
2008 ◽  
Vol 51 (7) ◽  
pp. 479-491 ◽  
Author(s):  
Ilias Kounatidis ◽  
Nikolaos Papadopoulos ◽  
Kostas Bourtzis ◽  
Penelope Mavragani-Tsipidou
Keyword(s):  
Salivary Gland ◽  
Sex Chromosomes ◽  
Cytogenetic Analysis ◽  
Polytene Chromosomes ◽  
Fruit Fly ◽  
Pest Species ◽  
Heteromorphic Sex Chromosomes ◽  
Weak Points ◽  
Heterogametic Sex ◽  
Rhagoletis Cerasi

The European cherry fruit fly, Rhagoletis cerasi , is a major agricultural pest for which biological, genetic, and cytogenetic information is limited. We report here a cytogenetic analysis of 4 natural Greek populations of R. cerasi, all of them infected with the endosymbiotic bacterium Wolbachia pipientis . The mitotic karyotype and detailed photographic maps of the salivary gland polytene chromosomes of this pest species are presented here. The mitotic metaphase complement consists of 6 pairs of chromosomes, including one pair of heteromorphic sex chromosomes, with the male being the heterogametic sex. The analysis of the salivary gland polytene complement has shown a total of 5 long chromosomes (10 polytene arms) that correspond to the 5 autosomes of the mitotic nuclei and a heterochromatic mass corresponding to the sex chromosomes. The most prominent landmarks of each polytene chromosome, the “weak points”, and the unusual asynapsis of homologous pairs of polytene chromosomes at certain regions of the polytene elements are also presented and discussed.

scholarly journals Host plant‐related genomic differentiation in the European cherry fruit fly, Rhagoletis cerasi

2019 ◽  
Vol 28 (20) ◽  
pp. 4648-4666 ◽  
Author(s):  
Vid Bakovic ◽  
Hannes Schuler ◽  
Martin Schebeck ◽  
Jeffrey L. Feder ◽  
Christian Stauffer ◽  
...  
Keyword(s):  
Host Plant ◽  
Fruit Fly ◽  
Rhagoletis Cerasi

European Cherry Fruit Fly, Rhagoletis cerasi (L.) (Diptera: Tephritidae)

2008 ◽  
pp. 1367-1368
Author(s):  
James C. Dunford ◽  
Louis A. Somma ◽  
David Serrano ◽  
C. Roxanne Rutledge ◽  
John L. Capinera ◽  
...  
Keyword(s):  
Fruit Fly ◽  
Rhagoletis Cerasi

scholarly journals Evaluation of Pesticide Residue Dynamics in Lettuce, Onion, Leek, Carrot and Parsley

Foods ◽  
2020 ◽  
Vol 9 (5) ◽  
pp. 680
Author(s):  
Tereza Horská ◽  
František Kocourek ◽  
Jitka Stará ◽  
Kamil Holý ◽  
Petr Mráz ◽  
...  
Keyword(s):  
Pesticide Residues ◽  
Threshold Value ◽  
Vegetable Production ◽  
Order Kinetic ◽  
Pesticide Application ◽  
Time Of Application ◽  
Iceberg Lettuce ◽  
Action Threshold ◽  
Pesticide Formulations ◽  
Crop Harvest

The dynamics of 32 active substances contained in pesticide formulations (15 fungicides and 17 insecticides) were analyzed in iceberg lettuce, onion, leek, carrot, and parsley. Pesticide residues were monitored from the time of application until harvest. In total, 114 mathematical models of residue dissipation were developed using a first-order kinetic equation. Based on these models, it was possible to predict the action pre-harvest interval (the time between the last pesticide application and crop harvest) needed to attain a targeted action threshold (value significantly lower than the maximum limit) for low-residue vegetable production. In addition, it was possible to determine an action pre-harvest interval based on an action threshold of 0.01 mg kg−1 to produce vegetables intended for zero-residue production. The highest amount of pesticide residues were found in carrot and parsley leaves several days after treatment, and pesticide dissipation was generally slow. Lower amounts were found in leeks and lettuce, but pesticide dissipation was faster in lettuce. According to our findings, it seems feasible to apply reduced pesticide amounts to stay below unwanted residue levels. However, understanding the effectivity of reduced pesticide application for controlling relevant pest organisms requires further research.

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