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

Preti, Michele; Knight, A. L.; Favaro, Riccardo; Basoalto, Esteban; Angeli, Sergio

doi:10.3390/insects12010072

Cited by 15 publications

(25 citation statements)

References 50 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Second, the results from trial #16 where FR was placed in the known ‘pest hot‐spot’ in the orchard demonstrated the effectiveness of FR in reducing localized pest problems to a baseline level. Third, the relatively greater effectiveness of FR in the USA than in Italy is consistent with our recent report of geographical differences in the attractiveness of these multi‐component lures for codling moth (Preti et al., 2021a). While in the USA the four‐component lure PE/DMNT/LOX + AA outperformed other kairomone‐based lures for the highest capture of female moths, in Italy the multi‐component lures tested (PH/PE + AA, PE/DMNT/LOX + AA, and PH/PE/DMNT/LOX + AA) had an overall similar attractiveness for females (Preti et al., 2021a).…”

Section: Discussionsupporting

confidence: 89%

“…Most likely, the high rates of male removal achieved with our bisexual lures would be useful when the population density is low due to reduced male polygamy in disrupted orchards (Knight, 2007a). Unfortunately, adding PH to the multi‐component PE/DMNT/LOX + AA lure was shown to reduce female captures, and its use would not be justified (Preti et al., 2021a).…”

Section: Discussionmentioning

confidence: 99%

See 1 more Smart Citation

Developing female removal for Cydia pomonella (Lepidoptera: Tortricidae) in organic pear in the USA and Italy

Preti

Knight²,

Mujica³

et al. 2021

J Applied Entomology

Self Cite

View full text Add to dashboard Cite

Seventeen trials were conducted using traps baited with kairomone‐based lures to evaluate female removal (FR) as an effective management tactic for codling moth, Cydia pomonella, L., in organic pear, Pyrus communis L., production in Italy and USA during 2019–2020. Studies included paired plots (0.4–1.4 ha) treated with or without 60 traps ha−1 in cultivars Bartlett and Abate Fétel. Paired plots were also treated together with or without mating disruption (MD) and with similar spray programmes. Three‐, four‐, and five‐component lures were used with several trap types: green, clear or green/white bucket traps and orange delta traps. The three‐component lure consisted of (E,E)‐8,10‐dodecadien‐1‐ol (sex pheromone, PH), (E,Z)‐2,4‐ethyl decadienoate (pear ester, PE) and acetic acid (AA); the four‐component lure was PE, (E)‐4,8‐dimethyl‐1,3,7‐nonatriene (DMNT), 6‐ethenyl‐2,2,6‐trimethyloxan‐3‐ol (pyranoid linalool oxide, LOX), and AA, and the five‐component lure had PH added. Preliminary studies were also conducted to evaluate the trapping efficacy of non‐saturating bucket traps. A clear bucket trap baited with PE/DMNT/LOX + AA captured 97‐fold more codling moth females than an orange delta trap baited with PH/PE. However, female captures did not differ between traps when both were baited with the four‐component lure. Fruit injury from codling moth was significantly reduced with the implementation of FR in both pear production regions. At harvest, mean fruit protection in the USA studies was 65% and 27% in Italy. This difference was likely associated with the four‐component lure being less effective in Italy than in the USA. Nevertheless, results demonstrate that FR can be a useful approach to remove females immigrating into orchards and as a new tactic to reduce pest pressure in selected areas of orchards allowing both MD and organic insecticide programmes to be more effective. Further studies should investigate the cost‐benefit of matching the intensity of FR to variable pest pressures.

show abstract

Section: Discussionsupporting

confidence: 89%

Section: Discussionmentioning

confidence: 99%

Developing female removal for Cydia pomonella (Lepidoptera: Tortricidae) in organic pear in the USA and Italy

Preti

Knight²,

Mujica³

et al. 2021

J Applied Entomology

Self Cite

View full text Add to dashboard Cite

show abstract

“…Similarly, limonene, linalool and ( E )‐β‐farnesene when combined with codlemone increased the number of males flying towards the odour source and shortened the response time of males (Schmera & Guerin, 2012). However, combinational effects of codlemone and HPVs can vary depending on whether they are loaded together or into separate lure matrices (Casado, 2007; Knight et al., 2019c; Preti et al., 2021). For instance, loading high amounts of PE with codlemone together in one septum lure reduced male codling moth's response to sex pheromone, but not when each compound was presented in a separate septum lure (Casado, 2007).…”

Section: Discussionmentioning

confidence: 99%

“…For instance, loading high amounts of PE with codlemone together in one septum lure reduced male codling moth's response to sex pheromone, but not when each compound was presented in a separate septum lure (Casado, 2007). Similarly, adding a separate septum with codlemone to traps baited with the 4K blend composed of four separate lures increased male and did not affect female moth catches (Knight et al., 2019b), while adding codlemone into the same PVC lure together with PE, DMNT and pyrLOX significantly decreased female catch (Preti et al., 2021).…”

Section: Discussionmentioning

confidence: 99%

“…Loading rates of PE in septa were clearly shown to be a key determinant of moth catches and sex ratio of codling moth (Knight & Light, 2005c). Also, the residual longevity of the 4K lure appears to be determined by the drop in the rate of DMNT released over time (Preti et al., 2021). Finally, it is clear from the literature published with PE that the effectiveness of any new blends will need to be tested in different geographical areas (Preti et al., 2021) and within each host crop (Light et al., 2001).…”

Section: Discussionmentioning

confidence: 99%

See 1 more Smart Citation

Development of multi‐component non‐sex pheromone blends to monitor both sexes of Cydia pomonella (Lepidoptera: Tortricidae)

Preti

Knight²,

Mujica³

et al. 2021

J Applied Entomology

Self Cite

View full text Add to dashboard Cite

Nineteen host plant volatiles (HPVs) were screened for attractivity to adult codling moth Cydia pomonella (L.) as a fourth component of core blends (3K) including (E,Z)‐2,4‐ethyl decadienoate, (E)‐4,8‐dimethyl‐1,3,7‐nonatriene and acetic acid. Each new quaternary combination was compared with a previously reported attractive bisexual lure (4K), consisting of the 3K blend plus 6‐ethenyl‐2,2,6‐trimethyloxan‐3‐ol (pyranoid linalool oxide, pyrLOX). All lure evaluations were conducted in apple, Malus domestica (Borkhausen). Several compounds were found to significantly lower total and/or female catches when added to the 3K blend, including (Z)‐3‐hexenol, (E)‐2‐hexanal and hexyl butanoate (female and total moths), and (Z)‐3‐hexenyl acetate and linalool (female moths). Other compounds when added to the 3K blend did not increase or decrease moth catches, including methyl salicylate, (E)‐β‐ocimene, limonene, β‐caryophyllene, butyl hexanoate, farnesol, terpineol, terpinen‐4‐ol and α‐pinene. A few added compounds significantly increased moth catches compared with the 3K blend, including β‐pinene (male moths), (Z)‐jasmone (male and total moths), (E)‐β‐farnesene and β‐myrcene (female and total moths), and (E,E)‐α‐farnesene (male, female, and total moths). In addition, each of these five compounds when added to the 3K core blend performed similarly to the 4K lure (male, females, and total moths). Further studies should expand these results through tests of these and other new blends with a range of component ratios and total loading amounts. Field trials should also be replicated within all host crops of codling moth and across major geographical production regions.

show abstract

Herbivore-Dependent Induced Volatiles in Pear Plants Cause Differential Attractive Response by Lacewing Larvae

2023

View full text Add to dashboard Cite

While chemical control is still the primary strategy for insect pest management in fruit production, alternative strategies such as biological control need to be incorporated. Biological control may bene t from the behavioral manipulation of natural enemies using volatile organic compounds (VOCs). Among these, herbivore-induced plant volatiles (HIPVs) provide potential tools for attracting or retaining predators and parasitoids of insect pests. In southern South America, the pear psylla Cacopsylla bidens (Hemiptera: Psyllidae) has become a major pest in pear orchards. In this study, we identi ed VOCs emitted by pear plants in response to attack by C. bidens and compared these with VOCs induced by a leaf-chewing insect, Argyrotaenia sphaleropa (Lepidoptera: Tortricidae). Moreover, we evaluated the behavioral response of Chrysoperla externa (Neuroptera: Chrysopidae) to HIPVs from pear plants damaged by either herbivore. Plants damaged by the pear psylla emitted VOC blends with increased amounts of aliphatic aldehydes. In contrast, leafroller damage resulted in increased amounts of benzeneacetonitrile, (E)-4,8-dimethylnona-1,3,7-triene, -ocimene and caryophyllene. In olfactometer bioassays, larvae of C. externa were attracted to herbivore-damaged plants when contrasted with undamaged plants. When plant odors from psylla-damaged were contrasted with those of leafroller-damaged plants, C. externa larvae preferred the former, also showing shorter response lag-times and higher response rates when psylla-damaged plants were present. Our results suggest that psylla-induced aliphatic aldehydes may be used as prey-speci c chemical cues by chrysopid larvae. Our ndings contributes to the general notion of using semiochemicals as tools for attracting and retaining natural enemies in agroecosystems.

show abstract

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

Cited by 15 publications

References 50 publications

Developing female removal for Cydia pomonella (Lepidoptera: Tortricidae) in organic pear in the USA and Italy

Developing female removal for Cydia pomonella (Lepidoptera: Tortricidae) in organic pear in the USA and Italy

Development of multi‐component non‐sex pheromone blends to monitor both sexes of Cydia pomonella (Lepidoptera: Tortricidae)

Herbivore-Dependent Induced Volatiles in Pear Plants Cause Differential Attractive Response by Lacewing Larvae

Contact Info

Product

Resources

About