scholarly journals Studierea influenţei componenţilor minori asupra eficienţei feromonilor sexuali ai viermelui mărului

2021 ◽  
Author(s):  
Vladimir Sleahtici ◽  
◽  
Natalia Raileanu ◽  
Vasilisa Odobescu ◽  
Svetlana Jalba ◽  
...  
Keyword(s):  
Binary Mixture ◽  
Cydia Pomonella ◽  
Minor Component ◽  
Codling Moth ◽  
Field Trials ◽  
Apple Orchard ◽  
Pheromone Traps ◽  
Minor Components ◽  
Rubber Septa ◽  
Number Of Males

In this paper is reported the evaluation of biological efficacy of two minor components that was added to the basic sex pheromone component Cydia pomonella L., E8, E10-C12-OH. The use of minor component- C.M.-1 of increasing concentrations in binary mixture compositions with the basic sex phe-romone component of codling moth on pheromone-impregnated rubber septa in delta pheromone traps has shown an increased effectiveness by 56-62% in field trials on apple orchard. At the same time, the number of males caught in delta pheromone traps where were used minor component - C.M.-2 in binary mixture compositions increased by 29-35%. Auxiliary research is still needed.

scholarly journals Evaluation of efficacy of Cydia pomonella granulovirus (CpGV) to control the codling moth (Cydia pomonella L., Lep.: Tortricidae) in field trials

2011 ◽  
Vol 39 (No. 4) ◽  
pp. 117-125 ◽  
Author(s):  
J. Stará ◽  
F. Kocourek
Keyword(s):  
Population Density ◽  
Untreated Control ◽  
Cydia Pomonella ◽  
Codling Moth ◽  
Field Trials ◽  
Apple Orchard ◽  
Egg Laying ◽  
Biological Efficacy ◽  
Laboratory Conditions ◽  
Cydia Pomonella Granulovirus

The efficacy of a CpGV-based preparation of Czech production against codling moth (CM) was tested in an experimental apple orchard at Prague-Ruzyně in 1998&ndash;2000. The influence of CpGV treatment on the reduction of CM population density and fruit injury was evaluated in comparison with teflubenzuron. Decline of CpGV efficacy in the orchard was tested in laboratory conditions on apples sampled at different terms after CpGV treatment. The rates of CpGV applied ranged from 0.5 to 1.00 &times; 10<sup>13&nbsp;</sup>granulles/ha, and the number of applications from 3 to 5 per year. The biological efficacy of CpGV to reduce the CM population density ranged from 75.5% to 96.0%, that of teflubenzuron from 90.8% to 97.5%, compared to the untreated control. The CpGV treatment was more efficacious in reducing the CM population density than in reducing fruit injury. The efficacy of CpGV decreased to 50% after 20, 10 and 11 d after treatment in 1998, 1999 and 2000, respectively. According to our results, a 10 d interval for CpGV treatments is recommended in case of further mass egg-laying by CM in the period between CpGV applications. &nbsp;

scholarly journals Particularităţile influenţei componenţilor minori asupra eficienţei feromonilor sexuali ai viermelui oriental în plantaţiile de măr

2021 ◽  
Author(s):  
Ivan Boubatrin ◽  
◽  
Natalia Raileanu ◽  
Vasilisa Odobescu ◽  
Svetlana Jalba ◽  
...  
Keyword(s):  
Sex Pheromone ◽  
Minor Component ◽  
Apple Orchard ◽  
Biological Efficiency ◽  
Pheromone Traps ◽  
Sex Pheromone Traps ◽  
Proportional Decrease ◽  
Number Of Males

The scope of the research was to determine the biological efficiency of the multicomponent blend of Orienthal fruit moth sex pheromone in the apple orchard. The introduction of the minor component M1 in doses of 10% to the basic components on dispensers had led to a increase in number of males caught in sex pheromone traps by 1,7 times. While the male captures on traps where was added 10% of minor component M2 to the basic ones had led to a increase by 1,2 times. The minor component M2 in-crease of doses had led to a proportional decrease of the male caught in traps. Research will be continued.

The results of field trials of the codling moth pheromone preparations in 2020

2020 ◽  
Author(s):  
S.V. Dmitriyeva ◽  
◽  
I.M. Mityushev
Keyword(s):  
Russian Federation ◽  
Central Region ◽  
Cydia Pomonella ◽  
Codling Moth ◽  
Field Trials ◽  
Field Screening ◽  
Tube Type ◽  
The Russian Federation ◽  
Polyethylene Dispenser

This article presents the results of field screening of pheromone preparations of the codling moth, Cydia pomonella L., conducted in 2020 under conditions of the Central Region of the Russian Federation. The new «Tube» type dispensers were tested vs. standard foil-polyethylene dispenser.

scholarly journals Flight and Molecular Modeling Study on the Response of Codling Moth, Cydia pomonella (Lepidoptera: Tortricidae) to (E,E)-8,10-Dodecadien-1-ol and Its Geometrical Isomers

2000 ◽  
Vol 55 (11-12) ◽  
pp. 1011-1017 ◽  
Author(s):  
Ashraf El-Sayed ◽  
Ilme Liblikas ◽  
Rikard Unelius
Keyword(s):  
Molecular Modeling ◽  
Cydia Pomonella ◽  
Codling Moth ◽  
Flight Behavior ◽  
Behavioral Activity ◽  
Geometrical Isomers ◽  
Specific Receptors ◽  
Flight Parameters ◽  
The Individual ◽  
Number Of Males

In a previous study we have reported that both (E,Z )-8,10-dodecadienol (E,Z ) and (Z,Z )- 8,10-dodecadienol (Z,Z ) isomers inhibit the attraction of male codling moth, Cydia pomonella L. when added to (E,E)-8,10-dodecadienol (E,E ) while the (E,E)-8,10-dodecadienol (Z,E ) isomer induces slight increase in the number of males attracted to the pheromone source. In the p resent study, we have tested the behavioral activity of the individual geometrical isomers E,Z; Z,E and Z,Z . A few number of codling moth males flew to the Z,E -isomer while the other two isomers (i.e. E,Z and Z,Z ) did not elicit any upwind orientation. Analysis of the flight behavior to the E,E- and Z,E-isomer showed significant differences in most of the flight parameters evaluated. Based on the biological observations and molecular modeling, we suggest that the behavioral activity of the Z,E-isomer is due to presence of specific receptors for this isomer on male antennae and not to its structural resemblance to the E,E-isomer. These results underline the importance of the Z,E-isomer in sex attraction of male codling moth.

SUPPRESSION OF CODLING MOTH (LEPIDOPTERA: OLETHREUTIDAE) BY SEX PHEROMONE TRAPPING OF MALES

1976 ◽  
Vol 108 (10) ◽  
pp. 1037-1040 ◽  
Author(s):  
C. R. MacLellan
Keyword(s):  
Sex Pheromone ◽  
Codling Moth ◽  
Apple Orchard ◽  
Pheromone Traps ◽  
Male Population ◽  
Moth Population ◽  
Pheromone Trapping ◽  
Sex Pheromone Traps ◽  
Intensive Use ◽  
Fruit Damage

AbstractThe intensive use of sex pheromone traps in an insecticide-free apple orchard from 1972 to 1974 reduced the codling moth population and level of fruit damage. The sex ratio of bait-trapped adults indicated that the male population was being reduced by the pheromone traps. In commercial orchards pheromone trapping of males suppressed codling moth damage to fruit but the amount of damage was above acceptable economic levels.

scholarly journals The Relationship between Polarized Moonlight and the Number of Pest Microlepidoptera Specimens Caught in Pheromone Traps

2015 ◽  
Vol 84 (3) ◽  
pp. 163-176 ◽  
Author(s):  
László Nowinszky ◽  
János Puskás ◽  
Gábor Barczikay
Keyword(s):  
Cydia Pomonella ◽  
Light Trap ◽  
Codling Moth ◽  
Lobesia Botrana ◽  
Oriental Fruit Moth ◽  
Pheromone Traps ◽  
Anarsia Lineatella ◽  
Eupoecilia Ambiguella ◽  
Phyllonorycter Blancardella ◽  
Trap Catches

AbstractPheromone traps were deployed in Borsod-Abaúj-Zemplén County (Hungary) between 1982 and 1988, in 1990 and also between 1993 and 2013. These traps attracted 8 Microlepidoptera species:Phyllonorycter blancardella, P. corylifoliella,Anarsia lineatella,Eupoecilia ambiguella,Lobesia botrana,Grapholita funebrana,G. molestaandCydia pomonella. We examined the trapping data of these species in the context of lunar phases and polarized moonlight. Catches of the European Vine Moth (Lobesia botrana) and the Codling Moth (Cydia pomonella) were higher in the First Quarter, whereas catches of Peach Twig Borer (Anarsia lineatella), Vine Moth (Eupoecilia ambiguella), Plum Fruit Moth (Grapholita funebrana) and Oriental Fruit Moth (Grapholita molesta) were larger in the Last Quarter. Catches of the other two species, the Spotted Tentiform Leafminer (Phyllonorycter blancardella) and Hawthorn Red Midget Moth (P. corylifoliella), were higher in both the First and Last Quarters. When using pheromone traps, insects do not fly to a light source, so moonlight does not modify either the catching distance or flight activity. However, at high levels of polarized moonlight, pheromone trap catches will increase, as in the case of light-trap catches. The results are comprehensible when one considers that the target species can fly both during the daytime and also at night.

Roles of α-Farnesene in the Behaviors of Codling Moth Females

2003 ◽  
Vol 58 (1-2) ◽  
pp. 113-118 ◽  
Author(s):  
Fengming Yan ◽  
Marie Bengtsson ◽  
György Makranczy ◽  
Jan Löfqvist
Keyword(s):  
Biological Activities ◽  
Cydia Pomonella ◽  
Behavioral Responses ◽  
Codling Moth ◽  
Apple Orchard ◽  
Wing Fanning ◽  
And Control

Reproduction and olfactory behavioral responses of codling moth, Cydia pomonella (L.), females to synthetic α-farnesene were observed in the laboratory as well as their reproduction behaviors in an apple orchard. Calling levels were lifted and ovipositional peaks were advanced in codling moth females at presence of 1μg and 0.1 μg of α-farnesene, respectively. Mated females of codling moth more actively responded to 0.01 μg α-farnesene with walking and wing-fanning while walking than to other doses (0.001, 0.1, 1, 10 μg ) and control. The results show that α-farnesene plays important roles in the behaviors of codling moth females. However, the differences between responses to α-farnesene and those to apple volatiles by codling moth females indicate that components other than α-farnesene in apple volatiles also have biological activities

scholarly journals Monitoring of Codling Moth (Cydia Pomonella L.) in Apple Orchards Using Two Methods

2010 ◽  
Vol 50 (2) ◽  
pp. 220-223 ◽  
Author(s):  
Izabela Kot
Keyword(s):  
First Generation ◽  
Cydia Pomonella ◽  
Codling Moth ◽  
Pheromone Traps ◽  
Apple Orchards ◽  
Different Types ◽  
Two Generations ◽  
Sum Of Effective Temperatures ◽  
The Mean ◽  
Effective Temperatures

Monitoring of Codling Moth (Cydia Pomonella L.) in Apple Orchards Using Two MethodsThe present studies were conducted in 1999-2001 in three apple orchards differing from each other by the system of cultivation, the type of agricultural treatments and chemical control of pests. Their purpose was to monitor codling moth (Cydia pomonellaL.) in different types of apple orchards using pheromone traps, finding out the relation between the occurrence of moths and the sum of effective temperatures as well as determining the number of wintering caterpillars of this species with the use of bands of corrugated paper. The analysis of male flight of codling moth on the basis of pheromone traps makes it possible to state the occurrence of two generations in each studied year. The maximum population of the first generation was observed in the second or third ten days of June, while that of the second generation in the first ten days of August. The moths flight began when the sum of effective temperatures was 109.2-145.2°C, and the mean diurnal temperature was 12.3-17.2°C.

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