scholarly journals A note on the activity and species composition of sesiids [Lepidoptera: Sesiidae] as measured by pheromone traps and trunk sampling in apple orchards of southwestern Quebec

2007 ◽  
Vol 87 (3) ◽  
pp. 131-134 ◽  
Author(s):  
Gérald Chouinard ◽  
Sylvie Bellerose ◽  
Michèle Roy ◽  
Charles Vincent
Keyword(s):  
Species Composition ◽  
Pheromone Traps ◽  
Apple Orchards ◽  
Adult Males ◽  
Synanthedon Scitula

Abstract Adult males and larvae of sesiids were monitored in ten (1989–1991), five (2000) and two (2004) Quebec apple orchards. Multi Pher III traps baited with 99.1% Z, Z-3, 13-octadecadienyl acetate and 0.9% Z, E plus E, Z-3, 13-octadecadienyl acetate were used for adults, and trunk sampling was used for larvae. Synanthedon scitula, S. pyri, Podosesia syringae, S. acerrubri, S. fulvipes, S. exitiosa, S. acerni and Sesia tibialis males were captured between 1989 and 1991. Only 5 of the 347 adults of the S. scitula/pyri complex captured in 2000 belonged to S. pyri.

Occurrence of Grapholita molesta (Lepidoptera: Tortricidae) in major apple-growing areas of southern Quebec

2007 ◽  
Vol 139 (2) ◽  
pp. 292-295 ◽  
Author(s):  
Sylvie Bellerose ◽  
Gérald Chouinard ◽  
Michèle Roy
Keyword(s):  
First Record ◽  
Oriental Fruit Moth ◽  
Pheromone Traps ◽  
Apple Orchards ◽  
Adult Males ◽  
Grapholita Molesta ◽  
Moth Larva

AbstractOriental fruit moth (Grapholita molesta (Busck) (Lepidoptera: Tortricidae)) adult males were captured by pheromone traps in 10 of 24 orchards monitored in southern Quebec from 2003 to 2005. Twelve, 22, and 133 oriental fruit moths were captured in 2003, 2004, and 2005, respectively. One oriental fruit moth larva was collected in each of two orchards in 2004. This is the first record of this species in Quebec apple orchards.

scholarly journals Use of mating disruption for control of New Zealand leafrollers in apple orchards

2011 ◽  
Vol 64 ◽  
pp. 215-221 ◽  
Author(s):  
J.T.S. Walker ◽  
D.J. Rogers ◽  
P.L. Lo ◽  
D.M. Suckling ◽  
A.M. El-Sayed ◽  
...  
Keyword(s):  
New Zealand ◽  
Mating Disruption ◽  
Virgin Female ◽  
Pheromone Traps ◽  
Apple Orchards ◽  
Pheromone Trapping ◽  
Fruit Damage ◽  
Lightbrown Apple Moth ◽  
Pheromone Dispensers ◽  
Pheromone Blend

Leafrollers are important pests of apples and infested fruit can result in rejection of export consignments Leafroller mating disruption using a pheromone blend with activity against three species was examined in 12 Hawkes Bay orchards over two seasons (200910 and 201011) Pheromone dispensers (600/ha) and a single insecticide were applied to trees in early November and subsequent insecticide use was based on leafroller pheromone trapping and thresholds The pheromone blend substantially suppressed mating of virgin female lightbrown apple moth in treated orchards and reduced male catch in pheromone traps by up to 98 compared with the season prior to implementation Insecticide use for leafroller control decreased accordingly from 2127 insecticides per block in 2008/09 to 1018 in 2010/11 Leafroller control using mating disruption was acceptable fruit damage varied from 03 to 016 and no leafroller larvae were found on fruit in both field assessments and phytosanitary inspections of packed cartons

scholarly journals Flight pattern of Archips podana (Lep.: Tortricidae) based on data from pheromone traps

2010 ◽  
Vol 40 (No. 3) ◽  
pp. 75-81
Author(s):  
J. Stará ◽  
F. Kocourek
Keyword(s):  
Czech Republic ◽  
Flight Activity ◽  
Pheromone Traps ◽  
Apple Orchards ◽  
Degree Days ◽  
Flight Pattern ◽  
The Czech Republic ◽  
Summer Generation ◽  
Richards Function

In 9 years of the period 1993–1999 and 2001–2003 the flight activity of <I>Archips podana</I> was investigated by pheromone traps placed in four apple orchards in Central and East Bohemia. The cumulative catches of <I>A. podana</I> males were plotted against time of the catch expressed in sum of degree-days (DD) above 10°C and approximated by Richards’ function. Common parameters of Richards’ function could be found for the overwintering generation of <I>A. podana</I> from all localities. The beginning, peak and end of flight activity of the overwintering generation of the <I>A. podana </I>population in Central and East Bohemia can be predicted by use of DD. <I>Archips podana </I>is usually bivoltine in the Czech Republic, rarely univoltine in cold years or cold localities. Construct the flight pattern of the summer generation could of <I>A. podana </I>not be constructed, because the course of flight of this generation in dependence on DD differed significantly in particular years and localities.

Flight patterns of Hedya dimidioalba, Spilonota ocellana and Pandemis heparana (Lep.: Tortricidae) based on data from pheromone traps

2001 ◽  
Vol 37 (No. 4) ◽  
pp. 129-137 ◽  
Author(s):  
J. Stará ◽  
F. Kocourek
Keyword(s):  
Czech Republic ◽  
Climatic Conditions ◽  
Flight Activity ◽  
Pheromone Traps ◽  
Apple Orchards ◽  
Degree Days ◽  
Flight Pattern ◽  
The Czech Republic ◽  
Richards Function ◽  
Pandemis Heparana

During 1992–1999 the flight activity of Hedya dimidioalba, Spilonota ocellana and Pandemis heparana was investigated by pheromone traps placed in six apple orchards and a plum orchard in Central and East Bohemia. The cumulative catches of each species were plotted against time of the catch expressed as the sum of degree-days above 10°C (H. dimidioalba and S. ocellana) and 8°C (P. heparana) and approximated by Richards’ function. Common parameters of Richards’ function could be found for Hedya dimidioalba and Spilonota ocellana from all localities. In Pandemis heparana the flight pattern was different for groups of localities with similar climatic conditions. It was found that the beginning, peak and end of the flight activity of these species in the Czech Republic can be reasonably predicted.

scholarly journals Are synthetic pheromone captures predictive of parasitoid densities as a kairomonal attracted tool?

2011 ◽  
Vol 43 (1) ◽  
pp. 23 ◽  
Author(s):  
Mohamed Hassan Bayoumy ◽  
Mehmet Bora Kydan ◽  
Ferenc Kozár
Keyword(s):  
Sex Pheromones ◽  
Host Location ◽  
Pheromone Traps ◽  
Adult Males ◽  
Parasitoid Species ◽  
Synthetic Pheromone ◽  
Wide Range ◽  
Pseudaulacaspis Pentagona ◽  
Sticky Tape ◽  
White Peach Scale

Abundance of White Peach scale (WPS), <em>Pseudaulacaspis pentagona </em>(Targioni-Tozzetti) and San Jos&eacute; scale (SJS), <em>Diaspidiotus perniciosus </em>(Comstock) (Hemiptera: Diaspididae) adult males and their attracted parasitoids were monitored using pheromone and sticky tape traps in an orchard of Budapest, Hungary, during 2010. In this study, we tried answer on the question raised whether synthetic commercial pheromones of WSP or SJS could work as a kairomonal stimulant and positively attract higher numbers of the specialized parasitoids. Although pheromone traps attracted a wide range of parasitoid species, most of them were accidentally. However, the parasitoid <em>Thomsonisca amathus</em> (Walker) (Hymenoptera: E ncyrtidae) and the parasitoid <em>Encarsia perniciosi </em>(Tower) (Hymenoptera: Aphelinidae) significantly respond to the sex pheromones of WPS and SJS, respectively, suggesting that they may play an important role in host location.

Sex ratio variation in gastrointestinal nematodes of Svalbard reindeer; density dependence and implications for estimates of species composition

Parasitology ◽  
2004 ◽  
Vol 130 (1) ◽  
pp. 99-107 ◽  
Author(s):  
A. STIEN ◽  
M. DALLIMER ◽  
R. J. IRVINE ◽  
O. HALVORSEN ◽  
R. LANGVATN ◽  
...  
Keyword(s):  
Sex Ratio ◽  
Species Composition ◽  
Density Dependence ◽  
Sex Ratios ◽  
Gastrointestinal Nematodes ◽  
Late Winter ◽  
Adult Males ◽  
Svalbard Reindeer ◽  
Ratio Variation ◽  
Adult Sex Ratio

Estimates of the intensity and abundance of species provide essential data for ecological, evolutionary and epidemiological studies of gastrointestinal nematode communities. These estimates are typically derived from the species composition of adult males when only males have readily scorable species-specific morphological traits. Such estimation assumes that all species in the community have the same adult sex ratio. We evaluated this assumption for the trichostrongyle nematodes Ostertagia gruehneri and Marshallagia marshalli in infracommunities in Svalbard reindeer by identifying to species adult females using a polymerase chain reaction assay. The proportion of males was found to be slightly higher in O. gruehneri than in M. marshalli. Evidence for seasonal variation and density dependence in the adult sex ratio was only found for O. gruehneri. Possible demographic mechanisms for such sex ratio variation are discussed, and stochastic models that generate density-dependent sex ratios proposed. Sex ratio variation caused substantial bias in some male-based estimates of intensity of infection, while substantial and consistent bias in estimates of abundances was only evident in late winter samples. Our results suggest that estimating sex ratios can be particularly important in individual host level studies of nematode species of low abundance.

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.

scholarly journals MONITORING OF SOME LEPIDOPTERA SP. FROM APPLE ORCHARDS WITH THE HELP OF PHEROMONE TRAPS, IN CONDITIONS OF 2019 IN THE NORTH EAST AREA OF ROMANIA

2020 ◽  
Vol 9 (17) ◽  
pp. 346-351
Author(s):  
Aguriţa Aftudor–Manolache ◽  
Cristina Ionela Turcu ◽  
Margareta Corneanu ◽  
Ionel Perju
Keyword(s):  
Pheromone Traps ◽  
Apple Orchards ◽  
North East ◽  
The North
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