scholarly journals Relative Attractiveness of Incomplete and Complete Blends of Synthetic Pheromone to Male Obliquebanded Leafroller (Lepidoptera: Tortricidae) Moths in a Flight Tunnel and in Apple Orchards: Implications for Sex Pheromone–Mediated Mating Disruption of This Species

2008 ◽  
Vol 37 (2) ◽  
pp. 366-373 ◽  
Author(s):  
R. M. Trimble ◽  
D. B. Marshall
Keyword(s):  
Sex Pheromone ◽  
Mating Disruption ◽  
Flight Tunnel ◽  
Apple Orchards ◽  
Obliquebanded Leafroller ◽  
Synthetic Pheromone ◽  
Relative Attractiveness

scholarly journals Multiple Mating in the Citrophilous Mealybug Pseudococcus calceolariae: Implications for Mating Disruption

Insects ◽  
2019 ◽  
Vol 10 (9) ◽  
pp. 285 ◽  
Author(s):  
Renato Ricciardi ◽  
Andrea Lucchi ◽  
Giovanni Benelli ◽  
David Maxwell Suckling
Keyword(s):  
Sex Pheromone ◽  
Mating Disruption ◽  
Control Strategies ◽  
Flight Tunnel ◽  
Mate Location ◽  
Planococcus Citri ◽  
Mass Trapping ◽  
Pseudococcus Calceolariae ◽  
Rubber Septa ◽  
Extended Duration

The citrophilous mealybug Pseudococcus calceolariae (Maskell) (Hemiptera, Pseudococcidae) is a primary pest of various crops, including grapevines. The use of insecticides against this species is difficult in most cases because its life cycle includes an extended duration of eggs, juveniles, and adults under the bark and on the roots. Pheromone-based control strategies can present new eco-friendly opportunities to manage this species, as in the case of Planococcus ficus (Signoret) and Planococcus citri (Risso). With this aim it is critical to understand behavioral aspects that may influence pheromone-based control strategies. Herein, the capability of males to fertilize multiple females was investigated, trying to understand whether this behavior could negatively impact the efficacy of mass trapping, mating disruption, or the lure and kill technique. Results showed that a P. calceolariae male can successfully mate and fertilize up to 13 females. The copulation time in subsequent mating events and the time between copulations did not change over time but the number of matings per day significantly decreased. In a further experiment, we investigated the mate location strategy of P. calceolariae males, testing the attractiveness of different loadings of sex pheromone on males in a flight tunnel. Males constantly exposed to 16 rubber septa loaded with the sex pheromone showed a significant decrease in female detection at 1 and 30 μg loadings (0.18 and 0.74 visits per female for each visit per septum, respectively), whereas in the control about 9.2-fold more of the released males successfully detected the female in the center of the array of 16 septa without pheromone. Male location of females in the control (45%) was significantly higher than in the arrays with surrounding pheromone (5% and 20% at 1 and 30 μg loadings, respectively). Mating only occurred in the control arrays (45%). This study represents a useful first step to developing pheromone-based strategies for the control of citrophilous mealybugs.

Evaluating sex-pheromone- and kairomone-based lures for attracting codling moth adults in mating disruption versus conventionally managed apple orchards in Pennsylvania

2011 ◽  
Vol 67 (10) ◽  
pp. 1332-1337 ◽  
Author(s):  
Neelendra K Joshi ◽  
Larry A Hull ◽  
Edwin G Rajotte ◽  
Greg Krawczyk ◽  
Eric Bohnenblust
Keyword(s):  
Sex Pheromone ◽  
Mating Disruption ◽  
Codling Moth ◽  
Apple Orchards

scholarly journals Control of Synanthedon (Aegeria) myopaeformis by Mating Disruption Using Sex Pheromone Dispensers in Northern Greece

2017 ◽  
Vol 11 ◽  
pp. 35 ◽  
Author(s):  
D.S. Kyparissoudas ◽  
Α. Tsourgianni
Keyword(s):  
Sex Pheromone ◽  
Mating Disruption ◽  
Integrated Control ◽  
Insect Pest ◽  
Apple Orchards ◽  
Northern Greece ◽  
Polyethylene Tube ◽  
Synthetic Sex Pheromone ◽  
Clearwing Moth ◽  
Pheromone Dispensers

In 3 successive years (1990-1992) polyethylene tube dispensers, each containing 50.5 mg synthetic sex pheromone of the apple clearwing moth, Synanthedon (Aegeria) myopaeformis Borkh., were placed at a density of 680 per ha, once a year, in two adjacent commercial apple orchards each I ha in size. The degree of confusion reached almost 100% by releasing about 6 mg/ha/h, whereas the number of mated females decreased by 72.86%, compared with the untreated orchard. In 1993, after 3 years of experiments, a reduction of up to 91% of empty pupal skins per tree was attained. The encouraging results, especially when taking into account the relatively small size of the orchards, opens opportunities for the integrated control of this apple insect pest under the conditions of Northern Greece.

Development of kairomone-based lures and traps targeting Spilonota ocellana (Lepidoptera: Tortricidae) in apple orchards treated with sex pheromones

2017 ◽  
Vol 149 (5) ◽  
pp. 662-676 ◽  
Author(s):  
Gary J.R. Judd ◽  
Alan. L. Knight ◽  
Ashraf M. El-Sayed
Keyword(s):  
Acetic Acid ◽  
Sex Pheromone ◽  
Sex Pheromones ◽  
Mating Disruption ◽  
Seasonal Patterns ◽  
Mass Trapping ◽  
Apple Orchards ◽  
Organic Mass ◽  
Certified Organic ◽  
Release Devices

AbstractSpilonota ocellana (Denis and Schiffermüller) (Lepidoptera: Tortricidae) can be a serious pest of organic apples (Malus domestica Borkhausen (Rosaceae)) in British Columbia, Canada. Recent discovery that S. ocellana moths are attracted by a lure combining acetic acid (AA) and benzyl nitrile (BN), identified as a caterpillar-induced apple leaf volatile, provides an opportunity to develop bisexual mass-trapping or monitoring systems. Sticky white delta traps baited with benzyl nitrile (10 mg/red rubber septum) and an acetic-acid co-lure (3 mL AA/3-mm open 8-mL vial) caught significantly more moths than either component alone. Acetic-acid co-lures were weakly attractive but benzyl-nitrile-loaded septa were not attractive. Moth catches with AA+BN lures were unaffected by the size and type of rubber septum used to release benzyl nitrile, but catches increased with increasing loads of benzyl nitrile. Male and total moth catches were maximised using membrane release devices loaded with a mixture of benzyl nitrile and a second caterpillar-induced volatile, 2-phenylethanol (PET), in combination with an acetic-acid co-lure (AA+BN-PET). Female catches with AA+BN-PET and AA+BN lures were equivalent. Placing AA+BN lures in traps baited with female sex pheromone lures reduced male catches, but female catches were unchanged. When sticky liners were replaced weekly, white delta traps baited with AA+BN lures caught more moths than similarly baited white Multipher®-I bucket traps, or transparent UnitrapsTM. Multipher-I traps with a propylene glycol killing agent (250 mL) caught more moths than those with Vapona insecticide strips. In apple orchards treated with mating disruption sex pheromones, traps baited with AA+BN caught slightly more total moths than traps baited with sex pheromone. Weekly, total male+female moth catches with either AA+BN or sex pheromone lures showed similar seasonal patterns in both untreated and pheromone-disrupted orchards, respectively. Long-lasting release devices and an organic killing agent are needed to develop certified organic mass-trapping technologies for management of S. ocellana with the AA+BN kairomone.

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 by a synthetic sex pheromone in the white grub beetle Dasylepida ishigakiensis (Coleoptera: Scarabaeidae) in the laboratory and sugarcane fields

2011 ◽  
Vol 102 (2) ◽  
pp. 157-164 ◽  
Author(s):  
H. Yasui ◽  
S. Wakamura ◽  
N. Fujiwara-Tsujii ◽  
N. Arakaki ◽  
A. Nagayama ◽  
...  
Keyword(s):  
Sex Pheromone ◽  
Mating Disruption ◽  
Sexual Communication ◽  
Substantial Reduction ◽  
Flight Tunnel ◽  
White Grub ◽  
Dasylepida Ishigakiensis ◽  
Short Period ◽  
Synthetic Sex Pheromone ◽  
Almost All

AbstractA serious sugarcane pest, Dasylepida ishigakiensis, remains in the soil during most of its life cycle except for a short period for mating. Mating disruption by an artificial release of the sex pheromone (R)-2-butanol (R2B), therefore, may be a feasible method to control this pest. We examined the effects of artificial release of R2B and its related compounds, (S)-2-butanol (S2B) and the racemic 2-butanol (rac-2B), on the mating success of this beetle both in the laboratory and in the field. In flight tunnel experiments, almost all males orientated towards a R2B-releasing source and 40% of them landed on the source. When the atmosphere was permeated with R2B, the frequency of males landing on the model was significantly reduced. Both rac-2B and S2B were less effective, but substantial reduction in landing success by males was achieved at higher rac-2B concentrations. R2B released from polyethylene dispensers in sugarcane plots greatly reduced not only the proportion of females mated with males but also the number of males caught by R2B-baited traps, indicating that male mate-searching behaviour was strongly affected by the released R2B. Similar inhibitory effects on male behaviour were also observed when tube- or rope-type dispensers released high rac-2B concentrations in the field. These results indicate that it would be highly possible to control D. ishigakiensis through the disruption of the sexual communication by releasing either synthetic R2B or rac-2B.

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