Temporal Dynamics of Plum Curculio,<i>Conotrachelus nenuphar</i>(Herbst.) (Coleoptera: Curculionidae), Immigration into an Apple Orchard in Massachusetts

Piñero, Jaime C.; Prokopy, Ronald J.

doi:10.1603/0046-225x-35.2.413

Cited by 15 publications

(9 citation statements)

References 38 publications

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“…These results are again contrary to some field studies which reported either a synergistic effect of combining BZ or GA lures [26] or an additive interaction between BZ and PE and between BZ and GA [9]. The combined BZ + GA lure is presently the most widely used attractant for monitoring plum curculio in orchards [22,26,[28][29][30]. Also, a recent field study by our group showed that the combined BZ + PE was the most effective lure for monitoring plum curculio in Alabama peaches [9].…”

Section: Discussioncontrasting

confidence: 65%

“…The popular combined BZ + GA lure was significantly less attractive than the combined BZ + PE lure. The results suggested an additive interaction between BZ and GA, in contrast to the synergistic interaction reported in Massachusetts apples [26,30]. These varying results on lure performance may be related to several factors including the type of insect (strains), physicochemical properties of the lures, and differential attractiveness of tree fruit species/varieties, prevailing orchard conditions, strain differences, and physiological state of weevils.…”

Section: Introductionmentioning

confidence: 77%

“…The male-produced aggregation pheromone of plum curculio, grandisoic acid (GA), which was identified by [25], was later shown to act synergistically with BZ to increase adult trap captures in the field [26,27]. Consequently, a combined lure consisting of BZ and GA was developed in Massachusetts, in USA, [26] and Quebec, in Canada, and remains to date the most widely used attractant for monitoring plum curculio in orchards [22,26,[28][29][30]. The attractiveness of benzaldehyde + GA has, however, been shown to be consistently high in apple orchards in the Northeast but 2 Psyche less so in peach orchards in the mid-Atlantic region [29].…”

Section: Introductionmentioning

confidence: 99%

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Behavioral Response of Plum Curculio,Conotrachelus nenuphar, to Synthetic Fruit Volatile Lures and the Male-Produced Aggregation Pheromone

Akotsen-Mensah

Fadamiro

2015

Psyche: A Journal of Entomology

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Plum curculio,Conotrachelus nenupharHerbst (Coleoptera: Curculionidae), is a key pest of stone and pome fruits in North America. The behavioral response of adults of different physiological states (sex, age, diet, and mating status) to three commercially available synthetic lures, benzaldehyde (BZ) and plum essence (PE), the male-produced aggregation pheromone, grandisoic acid (GA), or their combinations, was studied in the laboratory. Four choice olfactometer bioassays demonstrated significant attraction of both sexes to PE lure. Both BZ and GA lures were not attractive to plum curculio when tested as commercially formulated. PE had higher release rate (1.51 mg/hr) than BZ (0.36 mg/hr) and GA (ca. 0.04 mg/hr), suggesting that the higher attractiveness of PE may be due to its relatively higher release rates. Tests with combined lures showed a neutral effect of combining GA with PE and an inhibitory effect of combining BZ with PE. The physiological conditions of the weevils had no significant effect on their response to the lures. Olfactometer tests with pure 1,2,4-trichlorobenzene (TCB) confirmed that this compound was inhibitory to plum curculio. These results are discussed in relation to the contrasting field reports which implicated BZ + GA as an effective attractant for plum curculio.

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Section: Discussioncontrasting

confidence: 65%

Section: Introductionmentioning

confidence: 77%

Section: Introductionmentioning

confidence: 99%

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Behavioral Response of Plum Curculio,Conotrachelus nenuphar, to Synthetic Fruit Volatile Lures and the Male-Produced Aggregation Pheromone

Akotsen-Mensah

Fadamiro

2015

Psyche: A Journal of Entomology

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“…Similarly, multivoltine adults also exhibited a strong propensity to ßy at average daytime temperatures of 22ЊC based on pyramid trap captures targeting discrete movement patterns (Leskey 2006). Dispersal from overwintering sites into fruit orchards is strongly inßuenced by air temperatures early in the season (Piñ ero and Prokopy 2006) indicating that there may be much variation in terms of movement patterns toward host trees based on ambient temperature before fruit set. A harmonic radar detection system could provide much needed information on the relative role of walking and ßight in the dispersal ecology of these species in real time and over a range of distances and locations.…”

mentioning

confidence: 99%

Harmonic Radar: Assessing the Impact of Tag Weight on Walking Activity of Colorado Potato Beetle, Plum Curculio, and Western Corn Rootworm

Boiteau

Vincent

Meloche

et al. 2010

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The impact of electronic dipole tags on the walking activity of three insects was determined using video tracking software. Results varied within and between the three species studied. The heaviest tag mounted on the pronotum of the Colorado potato beetle, Leptinotarsa decemlineata (Say), reduced its mean horizontal speed slightly but significantly. The mean horizontal speed of plum curculio, Conotrachelus nenuphar (Herbst), was significantly reduced by a light tag but not by heavier tags. The mean horizontal speed of the western corn rootworm, Diabrotica virgifera virgifera (LeConte), increased slightly when a tag was attached. A tag mounted to the dorsum of the Colorado potato beetle and the plum curculio slightly changed their climbing speed. Changes in the walking speed were variable but remained well within the range of values recorded in the literature. The impact of the additional tag weight was within the range of constraints to movement (e.g., slopes, barriers, etc.) normally experienced by insects in their environment. The results confirm that tags presently available will have minimal impact on the walking behavior of Colorado potato beetle, provide an estimate of the optimal tag weight for the plum curculio and show that a lighter tag and a better attachment method are required for the western corn rootworm. Because of the ability of insects to adapt to a wide range of landscapes and to their own body weight changes, the additional tag weight had a limited impact compared with the value of the ecological information gathered using this technology.

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“…The whole-orchard insecticide spray recommendation targets adult C. nenuphar that have either penetrated into orchard blocks by petal fall [3,20] or may have overwintered inside the blocks [22]. The pre-petal fall population likely represents the majority of the immigrating C. nenuphar population [25]. The New England recommendation to apply perimeter-row insecticide after the petal fall spray is based on the documented tendency of adult C. nenuphar to stay on perimeter-row trees [19,20,26].…”

Section: Discussionmentioning

confidence: 99%

Toward the Integration of an Attract-and-Kill Approach with Entomopathogenic Nematodes to Control Multiple Life Stages of Plum Curculio (Coleoptera: Curculionidae)

Piñero

Shapiro‐Ilan

Cooley

et al. 2020

Insects

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Efforts to reduce insecticide inputs against plum curculio, Conotrachelus nenuphar, a key pest of apples in eastern North America, include perimeter-row insecticide sprays applied after the whole-orchard petal fall spray to manage dispersing adults and, more recently, insecticide sprays confined to odor-baited trap trees. Entomopathogenic nematodes (EPNs) are virulent to ground-dwelling stages of C. nenuphar, and may be applied to the ground underneath trap-tree canopies. Here, we (1) compared the efficacy of the odor-baited trap tree approach with grower-prescribed (=grower standard) sprays to manage C. nenuphar populations over a six-year period in seven commercial apple orchards in New England; and (2) assessed the performance of the EPN Steinernema riobrave at suppressing ground-dwelling stages of C. nenuphar. In addition, the performance of S. riobrave was compared against that of S. carpocapsae and S. feltiae in one year. Across the six years, percent fruit injury on trap tree plots averaged 11.3% on odor-baited trap trees and 1.4% on unbaited trees in grower standard plots, highlighting the ability of trap trees to aggregate C. nenuphar activity and subsequent injury. Mean percentage injury on fruit sampled from interior trees, the strongest measure of treatment performance, in trap tree plots did not differ significantly from that recorded on interior trees in grower standard spray plots (0.95 vs. 0.68%, respectively). Steinernema riobrave consistently reduced C. nenuphar populations as indicated by the significantly lower number of adult C. nenuphar that emerged from the soil, when compared to water control. Steinernema carpocapsae and S. riobrave performed similarly well, and both EPN species outperformed S. feltiae. Our combined findings indicate that an IPM approach that targets multiple life stages of C. nenuphar has the potential to manage this pest more sustainably in a reduced-spray environment.

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Temporal Dynamics of Plum Curculio,Conotrachelus nenuphar(Herbst.) (Coleoptera: Curculionidae), Immigration into an Apple Orchard in Massachusetts

Cited by 15 publications

References 38 publications

Behavioral Response of Plum Curculio,Conotrachelus nenuphar, to Synthetic Fruit Volatile Lures and the Male-Produced Aggregation Pheromone

Behavioral Response of Plum Curculio,Conotrachelus nenuphar, to Synthetic Fruit Volatile Lures and the Male-Produced Aggregation Pheromone

Harmonic Radar: Assessing the Impact of Tag Weight on Walking Activity of Colorado Potato Beetle, Plum Curculio, and Western Corn Rootworm

Toward the Integration of an Attract-and-Kill Approach with Entomopathogenic Nematodes to Control Multiple Life Stages of Plum Curculio (Coleoptera: Curculionidae)

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