scholarly journals BIOLOGICAL TOOLS FOR CONTROLLING THE MAIN PESTS OF SWEET CHERRY

2020 ◽  
Vol 36 ◽  
pp. 22-32
Author(s):  
Mihaela Sumedrea ◽  
Florin Cristian Marin ◽  
Mirela Calinescu ◽  
Mihai Chivu

The paper presents the data collected from an ecological plot of sweet cherries with an area of 0.5 ha, where different methods of monitoring and combating the main pests were tested: European cherry fruit fly - Rhagoletis cerasi L. and black cherry aphid - Myzus cerasi F. The study took place during the years 2019-2020. European cherry fruit fly monitoring - Rhagoletis cerasi L. was performed with both atraCERAS optical panels and Decis Trap devices, with both a warning and control role, the results obtained highlighting a similar flight dynamics. The control of the European cherry fruit fly, carried out by direct control with the help of Decis Trap devices, the dose of 100 traps / ha, proved to be effective, the Abbott effectiveness indicator registering values between 83.4 - 90.5% in 2019, respectively 81.6 - 87.8% in 2020, depending on the studied variety. To control the black cherry aphid - Myzus cerasi F., the product Prev-Am was mainly used, based on orange oil, which was used with good results for the first attacks observed.

Author(s):  
Laura MACAVEI ◽  
Ion OLTEAN ◽  
Ioan OPREAN ◽  
Iuliana VASIAN ◽  
Aurelia POP ◽  
...  

The European cherry fruit fly, Rhagoletis cerasi (L.) (Diptera: Tephritidae), is one of the most destructive pest in cherry and sweet cherry orchards. Because of the low tolerance for damaged fruit on the market and the restrictions from E.U regarding insecticides, new envioramental safe methods begin to be developed. This paper  prezents preliminary research in monitoring and control of Rhagoletis cerasi L.  with  5 diffent formulations of specific pheromon  (pheromon prodeced by ICC  Raluca Ripan  Cluj-Napoca)  4 of them, have not been  tested yet. Adult flight was monitored twice a week on 22 yellow colored traps,  17 with  certified pheromone and  27 with the 4  new synthesized  formulations. Traps were placed in two orchards: one in which chemical treatments have been  performed and another plantation where no chemical treatments were applied. In the orchard where they applied chemical treatments, the average catch on colored traps was 28.31 adults/trap and in baited pheromone traps the average fluctuated between 11 adults/ trap in V3 and 28,6 adults per trap in V2. In the untreated orchard, the average number of catches on colored panels was 23.33 and in the variants with pheromone baits, this parameter was between 8.5 adults/trap in V5 and 44 adults/trap in V2.Rhagoletis cerasi level of population differ from a plantation to another and that is not strictly related to applied technology culture. Yellow panels shows good functionality in capturing adults. Between the  pheromone baited traps that are in the first stage of testing, higher number of  captures than yellow panel variants, showed the variant V2.


2012 ◽  
Vol 27 (4) ◽  
pp. 269-281 ◽  
Author(s):  
Svetomir Stamenkovic ◽  
Pantelija Peric ◽  
Drago Milosevic

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.


Author(s):  
Laura MACAVEI ◽  
Ion OLTEAN ◽  
Teodora FLORIAN ◽  
Mircea VARGA ◽  
Viorel MITRE ◽  
...  

Rhageletis cerasi (L.) is the most important pest in cherry orchards and it’s attak can affect the quality of fruit on a large percentage (45-100%). The European cherry fruit fly is prezent in all cherry and sweet cherry orchards, therefore monitoring this population is required as an element of integrated protection. The aim of this study is to establish population dynamics in Cluj area. Adult flight was monitored twice a week on yellow sticky panels. Traps were placed in different parts of the orchard. The first captures were recorded in May 29, with a number of 4 adults/orchard and in 24 June we recorded the maximum number, 89 adults/orchard. By monitoring population dynamics we can determine the correct time for application of chemical treatments.


EDIS ◽  
1969 ◽  
Vol 2004 (8) ◽  
Author(s):  
Howard V. Weems, Jr.

Larvae of two closely related species of fruit flies in central and eastern North America -- Rhagoletis cingulata (Loew), commonly called the cherry fruit fly or cherry maggot, and Rhagoletis fausta (Osten Sacken), the black cherry fruit fly -- attack cherry and cause wormy fruits. Only R. cingulata occurs in Florida, where it attacks wild cherries and is of little economic importance. These two species closely resemble a third pest species, the apple maggot, Rhagoletis pomonella (Walsh); the adults of all three have banded wings. R. cingulata breeds in all varieties of cherries including the sweet cherry. This document is EENY-203 (originally published as DPI Entomology Circular 116), one of a series of Featured Creatures from the Entomology and Nematology Department, Florida Cooperative Extension Service, Institute of Food and Agricultural Sciences, University of Florida. Published: March 2001.  EENY-203/IN360: Cherry Fruit Fly, Rhagoletis cingulata (Loew) (Insecta: Diptera: Tephritidae) (ufl.edu)


Agronomy ◽  
2019 ◽  
Vol 9 (10) ◽  
pp. 568
Author(s):  
Charalampos S. Ioannou ◽  
Stella A. Papanastasiou ◽  
Kostas D. Zarpas ◽  
Miguel Angel Miranda ◽  
Andrea Sciarretta ◽  
...  

The European cherry fruit fly, Rhagoletis cerasi (Diptera: Tephritidae), is a key pest for the cherry production industry in Europe and west Asia that has recently invaded North America. Insecticide applications are frequently employed to control this devastating pest, often without considering its population trends. We developed a novel decision support system (DSS), and field tested it in commercial sweet cherry orchards in central Greece. The DSS includes two algorithms that predict the timing of adult activity in the wild and support pest management decisions, based on R. cerasi population trends and pesticide properties, respectively. Preparatory monitoring of the testing area during 2014, using adult traps, revealed high population densities of R. cerasi in non-managed sweet cherry orchards and low densities in commercial ones. Implementation of the DSS during 2015 resulted in low R. cerasi adult population densities and zero fruit infestation rates in commercial cherry orchards. Similar population and infestation rates were recorded in conventionally treated plots that received on average two insecticide applications compared to the one-half that the DSS treated plots received. Simultaneously, high population densities and fruit infestation rates were recorded in non-managed cherry orchards. Apparently, the implementation of the simple DSS we developed reduces the cost of R. cerasi management and minimizes the chemical footprint on both the harvested fruit and the environment.


HortScience ◽  
1990 ◽  
Vol 25 (4) ◽  
pp. 456-458 ◽  
Author(s):  
Andrew J. Jessup

The quality of `Ron's Seedling', `American Bing', and `Lambert' sweet cherry drupes was not affected by irradiation doses up to 300 to 1000 gray. Peduncle discoloration increased in `Ron's Seedling' cherries when irradiated at 600 and 1000 gray. A dose of 75 gray prevented adult eclosion of more than 1300 Queensland fruit fly (Dacus tryoni, Froggatt). Larvae treated at the third instar were the least susceptible to gamma irradiation. The results indicated that gamma irradiation is a feasible quarantine treatment against D. tryoni without impairment to the quality of cherries.


1970 ◽  
pp. 01-04
Author(s):  
Esameldin B. M. Kabbashi, Ghada H. Abdelrahman and Nawal A. Abdlerahman

Guava (Psidium guajava L.) is a lovely tropical and subtropical fruit that originates in Mexico, Central America, and then taken to other distant and near parts around the world. In Sudan this popular fruit is produced in orchards and household and is so profitable but yet attacked by a lot of fruit fly species of the Genera Ceratitis and Bactrocera and the result is a loss of more than 70%. This research aimed at evaluating the effect of Gum Arabic coating (GAC) in extending the shelf life of guava fruit and disinfesting it from these notorious pests. Guava fruits from Kadaro orchards, Khartoum North, were tested using seven concentrations of Gum Arabic solutions. The results reflect that 1: 4 (25%) and 1: 8 (12.5%) (GA: water) concentrations attained 56 and 40% disinfestation, respectively whereas the other lower concentrations effected corresponding results in a range from 20 – 08%. The reduction in maggots per test fruit reached upto 188% as compared to the control.  The highest concentrations (1: 4 & 1: 8) effected a sustainability of 52% in fruit firmness (FF) with an average of medium (3) FF compared to soft FF (4) in the control. The corresponding results in other lower concentrations (1: 16; 1: 32; 1: 64; 1: 72 & 1: 96) were 36, 24, 24, 20 and 16%, respectively. In addition to an average FF of 4 (soft) for all these concentrations and 5 (very soft) for all the corresponding controls. Nevertheless, the sustainability of fruit color (FC) effected by the test concentrations was 52, 44, 24, 22, 24, 20, and 24%, respectively. Regarding these results, the two highest test concentrations effected a sizeable disinfestation and control of fruit flies and a good extension of shelf life of guava in Khartoum State. These findings support using this treatment as an effective IPM tool to extend guava fruit shelf life and upgrading its postharvest quality.


Agriculture ◽  
2020 ◽  
Vol 11 (1) ◽  
pp. 6
Author(s):  
Ewa Ropelewska

The aim of this study was to evaluate the usefulness of the texture and geometric parameters of endocarp (pit) for distinguishing different cultivars of sweet cherries using image analysis. The textures from images converted to color channels and the geometric parameters of the endocarp (pits) of sweet cherry ‘Kordia’, ‘Lapins’, and ‘Büttner’s Red’ were calculated. For the set combining the selected textures from all color channels, the accuracy reached 100% when comparing ‘Kordia’ vs. ‘Lapins’ and ‘Kordia’ vs. ‘Büttner’s Red’ for all classifiers. The pits of ‘Kordia’ and ‘Lapins’, as well as ‘Kordia’ and ‘Büttner’s Red’ were also 100% correctly discriminated for discriminative models built separately for RGB, Lab and XYZ color spaces, G, L and Y color channels and for models combining selected textural and geometric features. For discrimination ‘Lapins’ and ‘Büttner’s Red’ pits, slightly lower accuracies were determined—up to 93% for models built based on textures selected from all color channels, 91% for the RGB color space, 92% for the Lab and XYZ color spaces, 84% for the G and L color channels, 83% for the Y channel, 94% for geometric features, and 96% for combined textural and geometric features.


Plants ◽  
2021 ◽  
Vol 10 (3) ◽  
pp. 514
Author(s):  
Chrysoula G. Orfanidou ◽  
Fei Xing ◽  
Jun Zhou ◽  
Shifang Li ◽  
Nikolaos I. Katis ◽  
...  

In the present study, we utilized high throughput and Sanger sequencing to determine the complete nucleotide sequence of a putative new ilarvirus species infecting sweet cherry, tentatively named prunus virus I (PrVI). The genome of PrVI is comprised of three RNA segments of 3474 nt (RNA1), 2911 nt (RNA2), and 2231 nt (RNA3) and features conserved motifs representative of the genus Ilarvirus. BlastN analysis revealed 68.1–71.9% nt identity of PrVI with strawberry necrotic shock virus (SNSV). In subsequent phylogenetic analysis, PrVI was grouped together with SNSV and blackberry chlorotic ringspot virus (BCRV), both members of subgroup 1 of ilarviruses. In addition, mini-scale surveys in stone fruit orchards revealed the presence of PrVI in a limited number of sweet cherries and in one peach tree. Overall, our data suggest that PrVI is a novel species of the genus Ilarvirus and it consists the fifth member of the genus that is currently known to infect Prunus spp.


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