scholarly journals Development of 2-phenylethanol plus acetic acid lures to monitor obliquebanded leafroller (Lepidoptera: Tortricidae) under mating disruption

2016 ◽  
Author(s):  
A. L. Knight ◽  
G. J. R. Judd ◽  
E. Basoalto ◽  
A. M. El-Sayed
Keyword(s):  
Acetic Acid ◽  
Sex Pheromone ◽  
Mating Disruption ◽  
Cydia Pomonella ◽  
Codling Moth ◽  
Choristoneura Rosaceana ◽  
Obliquebanded Leafroller ◽  
Baited Traps ◽  
Bisexual Lure ◽  
Pheromone Dispensers

AbstractWe evaluated the effectiveness of 2-phenylethanol (PET) in combination with acetic acid (AA) as a binary lure for monitoring male and female obliquebanded leafroller, Choristoneura rosaceana (Harris). Studies were conducted in apple, Malus domestica Borkhausen, orchards treated with or without sex pheromone dispensers for mating disruption (MD). Open polypropylene vials, closed membrane cups, and rubber septa loaded with AA and/or PET in varying amounts were first evaluated in a series of trapping experiments. Membrane cups loaded with 800 mg of PET were as effective as 10-mg septa, but longer lasting, and were comparable to the open vials. A membrane cup AA lure was effective in tests, but further work is needed to increase its release rate and extend its activity. Catches of codling moth, Cydia pomonella (L.), and C. rosaceana were unaffected by combining PET with (E,E)-8,10-dodecadien-1-ol, the sex pheromone of codling moth, pear ester, (E,Z)-2,4-ethyl-decadienoate, and AA lures. Adding (E)-4,8-dimethyl-1,3,7-nonatriene to this blend to enhance codling moth catch, significantly reduced catches of C. rosaceana. PET+AA was a more attractive binary lure than AA plus phenylacetonitrile (PAN) for C. rosaceana. The addition of PET or PAN to traps already baited with the sex pheromone of C. rosaceana significantly reduced male catches. Traps baited with PET+AA placed in blocks not treated with MD caught significantly fewer C. rosaceana than traps baited with sex pheromone. In comparison, sex pheromone-baited traps in MD blocks caught ≤ 1 male moth per season which was significantly lower than total moth (> 10) or female moth (≥ 3) catch in these blocks with PET+AA. A high proportion (> 70%) of trapped females were mated in both untreated and MD-treated orchards. Further refinement of this binary, bisexual lure using membrane cup technology may allow the establishment of action thresholds and improve management timings for C. rosaceana.

Mating disruption of codling moth Cydia pomonella with high densities of Ecodian sex pheromone dispensers

2007 ◽  
Vol 131 (5) ◽  
pp. 311-318 ◽  
Author(s):  
G. Angeli ◽  
G. Anfora ◽  
M. Baldessari ◽  
G. S. Germinara ◽  
F. Rama ◽  
...  
Keyword(s):  
Sex Pheromone ◽  
Mating Disruption ◽  
Cydia Pomonella ◽  
Codling Moth ◽  
Pheromone Dispensers

scholarly journals Comparison of New Kairomone-Based Lures for Cydia pomonella (Lepidoptera: Tortricidae) in Italy and USA

Insects ◽  
2021 ◽  
Vol 12 (1) ◽  
pp. 72
Author(s):  
Michele Preti ◽  
Alan L. Knight ◽  
Riccardo Favaro ◽  
Esteban Basoalto ◽  
Marco Tasin ◽  
...  
Keyword(s):  
Acetic Acid ◽  
Sex Pheromone ◽  
Mating Disruption ◽  
Cydia Pomonella ◽  
Codling Moth ◽  
Linalool Oxide ◽  
Pome Fruits ◽  
Pear Ester ◽  
The Usa

Studies were conducted during the period 2019/2020 to evaluate the effectiveness of four lures for codling moth (Cydia pomonella L.) in pome fruits in Italy and the USA. Multi-component blends of sex pheromone ((E,E)-8,10-dodecadien-1-ol, PH), pear ester ((E,Z)-2,4-ethyl decadienoate, PE), (E)-4,8-dimethyl-1,3,7-nonatriene (DMNT), and pyranoid linalool oxide (6-ethenyl-2,2,6-trimethyloxan-3-ol, LOX) were loaded in either a halobutyl elastomer septum or a PVC matrix and always used in combination with acetic acid (AA) loaded in a closed membrane co-lure. Total moth capture was significantly greater with the PVC than the septum lure loaded with PH/PE + AA in both countries. Female capture in the USA study was significantly greater for 8 weeks in traps baited with the PE/DMNT/LOX blend + AA co-lure than with other lures and adding PH to this blend in a PVC lure significantly reduced female capture. In contrast, female capture in Italy did not differ among lures and counts were similar in both apple and pear crops treated with or without mating disruption. These results suggest that the effectiveness of ‘female removal’ strategies to manage codling moth may be geographically limited and further comparisons are needed in other production regions and in walnut.

MATING DISRUPTION FOR CONTROLLING THE CODLING MOTH, CYDIA POMONELLA (L.) (LEPIDOPTERA: TORTRICIDAE), IN ORGANIC APPLE PRODUCTION IN SOUTHWESTERN ONTARIO

1995 ◽  
Vol 127 (4) ◽  
pp. 493-505 ◽  
Author(s):  
R.M. Trimble
Keyword(s):  
Adult Male ◽  
Mating Disruption ◽  
Cydia Pomonella ◽  
Codling Moth ◽  
The Other ◽  
Growing Seasons ◽  
Apple Production ◽  
First And Second Generation ◽  
Trap Catches ◽  
Pheromone Dispensers

AbstractSex pheromone-mediated mating disruption using Isomate-C® pheromone dispensers was evaluated as a means of controlling the codling moth, Cydia pomonella, over three consecutive growing seasons in organically managed blocks of apples at two commercial apple orchards in Ontario. The objective of the study was to determine if mating disruption could be used to stabilize or reduce the amount of damage caused by indigenous codling moth populations. The emission rate of the pheromone dispensers was estimated using volumetric and gravimetric methods. Efficacy of the pheromone treatment was assessed by comparing pheromone-baited trap catches of adult male codling moths in pheromone- and insecticide-treated blocks of apples, and by estimating damage caused by first- and second-generation codling moths in pheromone- and insecticide-treated blocks as well as in small plots of apples where the codling moth was not controlled. The estimated average release rate of pheromone varied from 22.2 to 30.3 mg per ha per h. The seasonal total number of adult male moths trapped in the pheromone-treated blocks was from 3.8 to 25.3% of the number trapped in insecticide-treated blocks; during one season at one farm, no moths were trapped in a pheromone-treated block. Treatment with pheromone did not prevent an increase in codling moth damage. At one farm, damage increased ca. 5-fold during the 3-year study. At the other farm, damage increased ca. 4-fold during two consecutive growing seasons in one block and ca. 4-fold during three consecutive seasons in the other block. At both farms there was a marked increase in the amount of damage between the first and second generations of the pest. Possible reasons for the failure of the pheromone treatment to prevent increases in codling moth damage are discussed.

scholarly journals Use of Phenylacetonitrile Plus Acetic Acid to Monitor Pandemis pyrusana (Lepidoptera: Tortricidae) in Apple

2016 ◽  
Author(s):  
A. L. Knight ◽  
E. Basoalto ◽  
G. J. R. Judd ◽  
R. Hilton ◽  
D. M. Suckling ◽  
...  
Keyword(s):  
Acetic Acid ◽  
Sex Pheromone ◽  
Cydia Pomonella ◽  
Codling Moth ◽  
Emission Rates ◽  
Horticultural Crops ◽  
Plant Volatile ◽  
Pandemis Pyrusana ◽  
Pear Ester ◽  
Plant Volatile Compounds

ABSTRACTA recent discovery have demonstrated that herbivore induced plant volatile compounds from apple tree infested with leafrollers were highly attractive to con-specific adult male and female leafrollers. However, this work has been conducted in New Zealand and Canada testing only low doses of kairomone. This study has been conducted in US to assess the attractiveness of higher doses of the six apple volatiles provisory identified in apple trees infested by tortricid larvaeto the leafroller, Pandemis pyrusana Kearfott. These volatiles included, β-caryophyllene, germacrene D, benzyl alcohol, phenylacetonitrile, (E)-nerolidol, and indole. No volatiles were attractive to P. pyrusana when used alone. However, traps baited with phenylacetonitrile plus acetic acid caught both sexes of P. pyrusana. Traps baited with the other volatiles plus acetic acid caught zero to only incidental numbers of moths, ≤ 1.0. Adding phenylacetonitrile to traps baited with pear ester, ethyl (E,Z)-2,4-decadienoate plus acetic acid significantly reduced catches of codling moth, Cydia pomonella (L.). However, adding phenylacetonitrile to traps baited with codling moth sex pheromone, pear ester, and acetic acid did not similarly reduce moth catches of C. pomonella. Interestingly, traps baited with phenylacetonitrile plus acetic acid caught significantly more P. pyrusana than traps baited with a commercial sex pheromone lure. The evaporation rate of the acetic acid co-lure was an important factor affecting catches of P. pyrusana with phenylacetonitrile, and studies are needed to optimize the emission rates of both lure components. Further studies are warranted to develop phenylacetonitrile and possibly other aromatic plant volatiles as bisexual lures for the range of tortricid pests attacking horticultural crops.

Response of Tortricid Moths and Non-Target Insects to PheromoneTrap Color in Commercial Apple Orchards

2009 ◽  
Vol 44 (1) ◽  
pp. 69-77 ◽  
Author(s):  
Clayton T. Myers ◽  
Grzegorz Krawczyk ◽  
Arthur M. Agnello
Keyword(s):  
New York ◽  
Cydia Pomonella ◽  
Codling Moth ◽  
Oriental Fruit Moth ◽  
Choristoneura Rosaceana ◽  
Pest Species ◽  
Apple Orchards ◽  
Eastern United States ◽  
Obliquebanded Leafroller ◽  
Tufted Apple Bud Moth

Pheromone traps are a widely-used tool for monitoring pest activity in commercial apple orchards. Studies were conducted to evaluate delta-style traps painted with different colors (orange, red, yellow, green, blue, and white) for capture of obliquebanded leafroller, Choristoneura rosaceana (Harris), and oriental fruit moth, Grapholita molesta (Busck), as well as nontarget muscoid flies (Diptera: Muscidae) and honeybees, Apis mellifera L. An additional study evaluated plastic, four-sided LepTrap® traps of various colors in comparison with a standard delta trap for capture of obliquebanded leafroller, oriental fruit moth, tufted apple bud moth (Platynota idaeusalis (Walker)), and codling moth (Cydia pomonella L.). Capture of obliquebanded leafroller and oriental fruit moth was not significantly affected by trap color. Capture of nontarget flies and honeybees tended to be higher in blue and white (both painted and unpainted) delta-style traps in New York apple orchards, although there was some variability in this response by orchard site. There were no differences in capture of 4 pest species in Pennsylvania between colored, plastic LepTrap® traps and standard unpainted white delta-style traps. Given the observed differences in nontarget capture and the improved efficiencies of finding traps placed within tree canopies, we recommend using yellow, red, or orange delta traps for monitoring of obliquebanded leafroller, oriental fruit moth, and tufted apple bud moth in apple production areas in the eastern United States.

Potential of ethyl (2E,4Z)-2,4-decadienoate for monitoring activity of codling moth (Lepidoptera: Tortricidae) in eastern North American apple orchards

2005 ◽  
Vol 137 (1) ◽  
pp. 110-116 ◽  
Author(s):  
R.M. Trimble ◽  
Ashraf M. El-Sayed
Keyword(s):  
Sex Pheromone ◽  
Adult Male ◽  
Integrated Management ◽  
Cydia Pomonella ◽  
Codling Moth ◽  
Seasonal Activity ◽  
Apple Orchards ◽  
Baited Traps ◽  
The Mean ◽  
Monitoring Activity

AbstractIn Ontario apple orchards, the amount of synthetic codling moth (Cydia pomonella (L., 1758)) sex pheromone, E,E-8,10-dodecadien-1-ol (0.01–10.0 mg) used to bait traps significantly affected the mean total numbers of moths captured, whereas similar mean total numbers of moths were captured in traps baited with different amounts of pear-derived kairomone, ethyl (2E,4Z)-2,4-decadienoate (0.01–10.0 mg). The attractiveness of kairomone-baited traps was not increased by using greater amounts (100 and 1000 mg) of this compound. The attractiveness of the pheromone was not enhanced by the addition of kairomone. Similar patterns of adult male seasonal activity were observed when using pheromone-baited traps and kairomone-baited traps. The potential usefulness of kairomone-baited traps in the integrated management of C. pomonella in Ontario apple orchards is discussed.

scholarly journals Improved Monitoring of Grapholita molesta (Lepidoptera: Tortricidae) in Stone Fruit Orchards with a Pheromone-Kairomone Combination Lure

Insects ◽  
2020 ◽  
Vol 11 (7) ◽  
pp. 412
Author(s):  
Michele Preti ◽  
Alan L. Knight ◽  
Sergio Angeli
Keyword(s):  
Sex Pheromone ◽  
Sex Pheromones ◽  
Mating Disruption ◽  
Cydia Pomonella ◽  
Management Strategies ◽  
Oriental Fruit Moth ◽  
Grapholita Molesta ◽  
Baited Traps ◽  
By Catch ◽  
Fruit Orchards

Monitoring oriental fruit moth Grapholita molesta Busck (Lepidoptera: Tortricidae), populations based on counts in sex pheromone-baited traps within sex pheromone-treated orchards for mating disruption (MD) is challenging since male orientation to traps is disrupted. In this study, we evaluated a new commercial pheromone–kairomone combination lure for G. molesta (Pherocon® OFM Combo™ Dual™), which combines the G. molesta and Cydia pomonella L. sex pheromones with a blend of acetic acid and terpinyl acetate. Trap comparisons were performed in 33 trials in peach and nectarine orchards under MD (24) or non-MD (9) during the 2018–2019 period in Italy. Male and total moth captures in traps baited with the combination lure were significantly greater than in traps with G. molesta pheromone in both years and across both pheromone treatments. The proportion of females in the total moth captures using the combination lure averaged ca. 7% across all trials. The by-catch of non-targets, i.e., Apis mellifera L., was low in traps baited either with the combination and the sex pheromone lure, while trap color (white) affected the capture of beneficials but not of the target pest. Our study proves that this combination lure can improve the monitoring and management for G. molesta in stone fruits. New studies are needed to define action thresholds to trigger supplemental control methods to MD. Secondly, female-based monitoring lures should be further developed to improve management strategies.

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