scholarly journals Monitoring of Moth Pests in Apple Tree Orchard

2018 ◽  
Vol 21 (2) ◽  
pp. 54-57
Author(s):  
Oleg Paulen ◽  
Radoslav Kobolka
Keyword(s):  
First Generation ◽  
Apple Tree ◽  
Cydia Pomonella ◽  
Codling Moth ◽  
Botanical Garden ◽  
Surrounding Area ◽  
Rainy Weather ◽  
Growing Conditions ◽  
Two Peaks ◽  
Summer Fruit

Abstract The work suggests importance of monitoring apple tree pests from moth group in growing conditions of Nitra, Slovakia. In 2014 there was observed occurrence of moths e.g. Codling moth (Cydia pomonella L.), Appleseed moth (Grapholita lobarzewskii Now.), Hawthorn berry moth (G. janthinana Dup.), and Summer fruit tortrix moth (Adoxophyes orana Fish. v. Roesl.) in the apple tree orchard located in the Botanical Garden of SUA in Nitra with help of pheromone traps. The date of first generation occurrence of Codling moth, Appleseed moth and Summer fruit tortrix moth was recorded on April 23. All the pests showed two peaks of flight activity, but with Hawthorn berry moth three periods of higher occurrence were recorded. The course of temperatures influenced number of pests trapped in traps remarkably. The number of pest individuals was highly influenced by rainy weather and lower temperatures in months when there was expected their highest harmfulness. The recorded values might be influenced by plant species diversity of the experimental orchard as well as that of the surrounding area.

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.

The life history of Codling Moth, Cydia pomonella (L) (Lepidoptera: Tortricidae), in the Australian Capital Territory.

1963 ◽  
Vol 11 (3) ◽  
pp. 323 ◽  
Author(s):  
PW Geier
Keyword(s):  
First Generation ◽  
Cydia Pomonella ◽  
Ecological Factors ◽  
Weather Conditions ◽  
Codling Moth ◽  
Australian Capital Territory ◽  
Australian Capital ◽  
History Of ◽  
Life Habits

The life habits of codling moth in the Australian Capital Territory are described, and the ecological characteristics of the species and its environment are defined. In the Capital Territory, codling moth produces a complete first generation, a partial second generation, and some third generation individuals each summer. On an average, females lay between 40 and 50 eggs in all generations, but fecundity varies much between individuals. The observed distribution pattern of eggs and larval injuries to fruit suggest that oviposition occurs predominantly on trees at, or near, sources of females. In uniformly infested, homogeneous orchards, egg and damage distribution are almost random between trees. No significant departure from randomness was detected either between fruits, or between locations within trees. Fruits are often penetrated by more than one larva, either simultaneously or in succession, and competition occurs. Its forms and effects were examined. Fruits penetrated by several larvae tended to produce more mature larvae than fruits penetrated once, but the chances of survival fell as the numbers of entries per fruit increased. Fully fed larvae move from the fruit to an appropriate place on, or very close to, the host tree, where they spin a cocoon and eventually pupate. Under natural conditions in the Capital Territory, most mature larvae perish before establishing a cocoon. The rate of establishment was shown to be directly dependent upon the abundance and accessibility of suitable cocooning sites. The injuriousness of codling moth is always extremely high in the Capital Territory because of the generally favourable weather conditions. Particular effects of climate and weather on codling moth activity are discussed. Optimum environmental conditions for codling moth are defined. Conditions in the Capital Territory were found to be nearly optimum in most respects. Codling moth abundance cannot be explained by single ecological factors. Comprehensive studies of local populations are required to understand the numerical determination of the pest.

scholarly journals Captures of MFO-resistant Cydia pomonella adults as affected by lure, crop management system and flight

2015 ◽  
Vol 106 (1) ◽  
pp. 54-62 ◽  
Author(s):  
D. Bosch ◽  
M.A. Rodríguez ◽  
J. Avilla
Keyword(s):  
First Generation ◽  
Cydia Pomonella ◽  
Resistance Mechanism ◽  
Great Influence ◽  
Crop Management ◽  
Codling Moth ◽  
Lower Proportion ◽  
Resistance Level ◽  
Pear Ester ◽  
Crop Management Systems

AbstractThe main resistance mechanism of codling moth (Cydia pomonella) in the tree fruit area of Lleida (NE Spain) is multifunction oxidases (MFO). We studied the frequency of MFO-resistant adults captured by different lures, with and without pear ester, and flights in orchards under different crop management systems. The factor year affected codling moth MFO-resistance level, particularly in the untreated orchards, highlighting the great influence of codling moth migration on the spread of resistance in field populations. Chemical treatments and adult flight were also very important but mating disruption technique showed no influence. The second adult flight showed the highest frequency, followed by the first flight and the third flight. In untreated orchards, there were no significant differences in the frequency of MFO-resistant individuals attracted by Combo and BioLure. Red septa lures baited with pear ester (DA) captured sufficient insects only in the first generation of 2010, obtaining a significantly lower proportion of MFO-resistant adults than Combo and BioLure. In the chemically treated orchards, in 2009 BioLure caught a significantly lower proportion of MFO-resistant adults than Combo during the first and third flight, and also than DA during the first flight. No significant differences were found between the lures or flights in 2010. These results cannot support the idea of a higher attractiveness of the pear ester for MFO-resistant adults in the field but do suggest a high influence of the response to the attractant depending on the management of the orchard, particularly with regard to the use of chemical insecticides.

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 Will Peri-Urban Cydia pomonella (Lepidoptera: Tortricidae) Challenge Local Eradication?

Insects ◽  
2020 ◽  
Vol 11 (4) ◽  
pp. 207 ◽  
Author(s):  
Rachael Horner ◽  
Georgia Paterson ◽  
James T.S. Walker ◽  
George L.W. Perry ◽  
Rodelyn Jaksons ◽  
...  
Keyword(s):  
New Zealand ◽  
Spatial Interpolation ◽  
Spatial Clustering ◽  
Cydia Pomonella ◽  
Codling Moth ◽  
Catch Rate ◽  
Trap Catch ◽  
Urban Populations ◽  
Host Trees ◽  
The City

Codling moth, Cydia pomonella (Lepidoptera: Tortricidae), is a phytosanitary pest of New Zealand’s export apples. The sterile insect technique supplements other controls in an eradication attempt at an isolated group of orchards in Hawke’s Bay, New Zealand. There has been no attempt in New Zealand to characterize potential sources of uncontrolled peri-urban populations, which we predicted to be larger than in managed orchards. We installed 200 pheromone traps across Hastings city, which averaged 0.32 moths/trap/week. We also mapped host trees around the pilot eradication orchards and installed 28 traps in rural Ongaonga, which averaged 0.59 moths/trap/week. In Hastings, traps in host trees caught significantly more males than traps in non-host trees, and spatial interpolation showed evidence of spatial clustering. Traps in orchards operating the most stringent codling moth management averaged half the catch rate of Hastings peri-urban traps. Orchards with less rigorous moth control had a 5-fold higher trap catch rate. We conclude that peri-urban populations are significant and ubiquitous, and that special measures to reduce pest prevalence are needed to achieve area-wide suppression and reduce the risk of immigration into export orchards. Because the location of all host trees in Hastings is not known, it could be more cost-effectively assumed that hosts are ubiquitous across the city and the area treated accordingly.

scholarly journals Monthly Weather Forecasts in a Pest Forecasting Context: Downscaling, Recalibration, and Skill Improvement

2012 ◽  
Vol 51 (9) ◽  
pp. 1633-1638 ◽  
Author(s):  
Martin Hirschi ◽  
Christoph Spirig ◽  
Andreas P. Weigel ◽  
Pierluigi Calanca ◽  
Jörg Samietz ◽  
...  
Keyword(s):  
Insect Pest ◽  
Cydia Pomonella ◽  
Codling Moth ◽  
Lead Times ◽  
Practical Applications ◽  
Weather Forecasts ◽  
Weather Information ◽  
Agricultural Applications ◽  
Resampling Procedure ◽  
Skill Improvement

AbstractMonthly weather forecasts (MOFCs) were shown to have skill in extratropical continental regions for lead times up to 3 weeks, in particular for temperature and if weekly averaged. This skill could be exploited in practical applications for implementations exhibiting some degree of memory or inertia toward meteorological drivers, potentially even for longer lead times. Many agricultural applications fall into these categories because of the temperature-dependent development of biological organisms, allowing simulations that are based on temperature sums. Most such agricultural models require local weather information at daily or even hourly temporal resolution, however, preventing direct use of the spatially and temporally aggregated information of MOFCs, which may furthermore be subject to significant biases. By the example of forecasting the timing of life-phase occurrences of the codling moth (Cydia pomonella), which is a major insect pest in apple orchards worldwide, the authors investigate the application of downscaled weekly temperature anomalies of MOFCs for use in an impact model requiring hourly input. The downscaling and postprocessing included the use of a daily weather generator and a resampling procedure for creating hourly weather series and the application of a recalibration technique to correct for the original underconfidence of the forecast occurrences of codling moth life phases. Results show a clear skill improvement of up to 3 days in root-mean-square error over the full forecast range when incorporating MOFCs as compared with deterministic benchmark forecasts using climatological information for predicting the timing of codling moth life phases.

Numerical Regulation of Populations of the Codling Moth, Cydia pomonella (L.)

Nature ◽  
1961 ◽  
Vol 190 (4775) ◽  
pp. 561-562 ◽  
Author(s):  
P. W. GEIER
Keyword(s):  
Cydia Pomonella ◽  
Codling Moth
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