Evaluation of an integrated pest management program for central Washington pear orchards

DuPont, S. Tianna; Strohm, Christopher; Nottingham, Louis; Rendon, Dalila

doi:10.1016/j.biocontrol.2020.104390

Cited by 22 publications

(27 citation statements)

References 13 publications

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“…In commercial apple orchards, the use of chemicals is widespread for the control of a range of diseases and insect pests, in particular, the rosy apple aphid Dysaphis plantaginea (Hemiptera: Aphididae) (Passerini 1860) (Porcel et al 2018). For pear orchards, pest population control is currently maintained based on integrated pest management that also may include the use of synthetic pesticides (Belien et al 2021, DuPont et al 2021). However, in recent years, concerns about the environmental risks associated with the use of pesticides, the emergence of pesticide-resistant populations, and the increasing public demand for environmentally friendly products have stimulated the research for new solutions to control these orchards pests (Tougeron et al 2021).…”

Section: Introductionmentioning

confidence: 99%

Essential Oil Trunk Injection Into Orchard Trees: Consequences on the Performance and Preference of Hemipteran Pests

Denoirjean

Belhassen

Doury

et al. 2023

Journal of Economic Entomology

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Apples and pears are among the most widely cultivated fruit species in the world. Pesticides are commonly applied using ground sprayers in conventional orchards; however, most of it will not reach the target plant, increasing the contamination of nontarget organisms such as natural predators, pollinators, and decomposers. Trunk injection is an alternative method of pesticide application that could reduce risks to beneficials and workers. Essential oils represent a ‘green’ alternative to pesticides due to their reported insecticidal, antimicrobial, antiviral, nematicidal, and antifungal properties. The aim of this study was, therefore, to evaluate the impact that the injection of a cinnamon essential oil solution into the trunk of apple and pear trees could have on their respective pests, Dysaphis plantaginea and Cacopsylla pyri, respectively. The feeding behavior (preference), the life history traits (performance), and the timing of this effect were measured. The injection of an essential oil emulsion in trees impacted hemipteran host-plant colonization, as for both species a modification of their preference and of their performance was observed. The feeding behavior of D. plantaginea was altered as a significantly lower proportion of aphids ingested phloem sap on injected trees, suggesting that the aphids starved to death. On the contrary, the feeding behavior of the psyllids was little changed compared to the control condition, implying that the observed mortality was due to intoxication. The results presented here could theoretically be used to control these two orchard hemipteran pests, although the effectiveness in real conditions still has to be demonstrated.

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Section: Introductionmentioning

confidence: 99%

Essential Oil Trunk Injection Into Orchard Trees: Consequences on the Performance and Preference of Hemipteran Pests

Denoirjean

Belhassen

Doury

et al. 2023

Journal of Economic Entomology

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“…Pear psylla ( Cacopsylla pyricola ), a pest of pear ( Pyrus communis L.), exemplifies the need for integrated pest management. In Washington State's 7400 ha of pear production (half of the acreage in the USA; USDA NASS, 2021), insect pest management typically entails over 10 insecticide applications per season and multiple active ingredients per spray (DuPont et al, 2021). Due to insecticide resistance evolution and disruption of biocontrol, such exorbitant insecticide reliance results in high management costs and failure to prevent pear psylla damage (DuPont et al, 2021; Riedl et al, 1981).…”

Section: Introductionmentioning

confidence: 99%

“…In Washington State's 7400 ha of pear production (half of the acreage in the USA; USDA NASS, 2021), insect pest management typically entails over 10 insecticide applications per season and multiple active ingredients per spray (DuPont et al, 2021). Due to insecticide resistance evolution and disruption of biocontrol, such exorbitant insecticide reliance results in high management costs and failure to prevent pear psylla damage (DuPont et al, 2021; Riedl et al, 1981). Under an integrated concept, the use of more selective insecticides and use of non‐chemical tactics enable biocontrol and effective pear psylla management (Alway, 2001; Brunner & Burts, 1981; Burts, 1983; DuPont et al, 2021; Westigard et al, 1979).…”

Section: Introductionmentioning

confidence: 99%

“…Due to insecticide resistance evolution and disruption of biocontrol, such exorbitant insecticide reliance results in high management costs and failure to prevent pear psylla damage (DuPont et al, 2021; Riedl et al, 1981). Under an integrated concept, the use of more selective insecticides and use of non‐chemical tactics enable biocontrol and effective pear psylla management (Alway, 2001; Brunner & Burts, 1981; Burts, 1983; DuPont et al, 2021; Westigard et al, 1979).…”

Section: Introductionmentioning

confidence: 99%

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Evaluation of reflective groundcovers for pest and fruit quality management in commercial pear orchards

Orpet

Beers

DuPont

et al. 2023

J Applied Entomology

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Reflective groundcovers can improve crop yield and quality and deter pests by increasing light penetration into plant canopies. In pear (Pyrus communis L.) orchards, this could increase profitability and reduce reliance on insecticides to manage pear psylla (Cacopsylla pyricola [Foerster]). Two types of reflective groundcovers, metallized polyethylene film (metallized film) and white geotextile fabric (reflective fabric), are known to increase pear yield and quality, and metallized film was recently reported to suppress pear psylla. Here, we tested reflective fabric for pear psylla suppression at a research orchard in 2019, then we partnered with five pear orchard managers to test metallized film and reflective fabric for pear psylla suppression at five conventional commercial orchards in 2020 and one organic commercial orchard in 2021. There was evidence of pear psylla suppression by both metallized film and reflective fabric, but effects varied among reflective materials, pear psylla life stages, season and year of study. Reflective groundcovers did not affect fruit size, weight, sunburn or pest mite abundance, and they were compatible with pear psylla biocontrol. Low perceived benefit relative to cost was a barrier to continued trialling and adoption. Whereas orchardists in our study used reflective groundcovers in addition to normal pesticide regimes, previous research studies suggest that reflective groundcovers can profitably replace some insecticides. Future studies are needed to test the outcomes of replacing pesticides with reflective groundcovers in commercial orchards and understand under what circumstances they improve pear quality and yield.

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“…1,2 Current control of this pest relies mainly on insecticides. 3 However, the increasing resistance to many insecticides, such as pyrethroid 4,5 and orgno-phosphorous, 6,7 has made the control more difficult. Therefore, it is essential to search more efficient and environment-friendly alternative control methods to insecticides.…”

Section: Introductionmentioning

confidence: 99%

Synthesis of the enantiomers of 13‐methylheptacosane, the sex pheromone of pear psylla, Cacopsylla pyricola

et al. 2021

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Evaluation of an integrated pest management program for central Washington pear orchards

Cited by 22 publications

References 13 publications

Essential Oil Trunk Injection Into Orchard Trees: Consequences on the Performance and Preference of Hemipteran Pests

Essential Oil Trunk Injection Into Orchard Trees: Consequences on the Performance and Preference of Hemipteran Pests

Evaluation of reflective groundcovers for pest and fruit quality management in commercial pear orchards

Synthesis of the enantiomers of 13‐methylheptacosane, the sex pheromone of pear psylla, Cacopsylla pyricola

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