Aphids and associated parasitoids exhibit vertical canopy distribution differences in pecans

Slusher, Eddie K; Acebes‐Doria, Angelita L.; Cottrell, Ted E.; Schmidt, Jason M.

doi:10.1007/s10526-022-10169-z

BioControl

2022

DOI: 10.1007/s10526-022-10169-z

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Aphids and associated parasitoids exhibit vertical canopy distribution differences in pecans

Eddie K Slusher

Angelita L. Acebes‐Doria²,

Ted E. Cottrell³

et al.

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2024

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Cited by 2 publications

References 33 publications

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A whole ecosystem approach to pear psyllid (Cacopsylla pyri) management in a changing climate

Reeves,

Garratt,

Fountain

et al. 2024

J Pest Sci

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Whole ecosystem-based approaches are becoming increasingly common in pest management within agricultural systems. These strategies consider all trophic levels and abiotic processes within an ecosystem, including interactions between different factors. This review outlines a whole ecosystem approach to the integrated pest management of pear psyllid (Cacopsylla pyri Linnaeus) within pear (Pyrus communis L.) orchards, focusing on potential disruptions as a result of climate change. Pear psyllid is estimated to cost the UK pear industry £5 million per annum and has a significant economic impact on pear production globally. Pesticide resistance is well documented in psyllids, leading to many growers to rely on biological control using natural enemies during the summer months. In addition, multiple insecticides commonly used in pear psyllid control have been withdrawn from the UK and Europe, emphasising the need for alternative control methods. There is growing concern that climate change could alter trophic interactions and phenological events within agroecosystems. For example, warmer temperatures could lead to earlier pear flowering and pest emergence, as well as faster insect development rates and altered activity levels. If climate change impacts pear psyllid differently to natural enemies, then trophic mismatches could occur, impacting pest populations. This review aims to evaluate current strategies used in C. pyri management, discuss trophic interactions within this agroecosystem and highlight potential changes in the top-down and bottom-up control of C. pyri as a result of climate change. This review provides a recommended approach to pear psyllid management, identifies evidence gaps and outlines areas of future research.

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A whole ecosystem approach to pear psyllid (Cacopsylla pyri) management in a changing climate

Reeves,

Garratt,

Fountain

et al. 2024

J Pest Sci

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Trap Height Affects Capture of the Pecan Nut Casebearer (Lepidoptera: Pyralidae)

Cottrell

2024

Journal of Entomological Science

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The pecan nut casebearer, Acrobasis nuxvorella Neunzig (Lepidoptera: Pyralidae), is a monophagous pest attacking pecan, Carya illinoinensis (Wangenh.) Koch. Pheromone traps attractive to adult males are used to monitor this pest in orchards by placing them in the lower canopy. However, some insects exhibit vertical stratification in tree canopies as does occur for some beneficial and pest species associated with pecan. The objective of this study was to assess vertical stratification of the pecan nut casebearer in the canopy of tall pecan trees when sampling with pheromone traps. Traps were placed at three heights in orchards (1.5, 7.6, and 13.7 m) above ground. In one experiment, only one trap was placed at one of the three heights at a tree. In the other experiment, three traps, one at each height, were placed in the canopy of the same tree. Results from both experiments reveal that the pecan nut casebearer does stratify within the pecan canopy. Significantly more moths were captured in the highest trap than in the traps at the other heights. These results provide information useful for developing pecan nut casebearer management strategies such as mating disruption in pecan orchards with tall trees.

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Aphids and associated parasitoids exhibit vertical canopy distribution differences in pecans

Cited by 2 publications

References 33 publications

A whole ecosystem approach to pear psyllid (Cacopsylla pyri) management in a changing climate

A whole ecosystem approach to pear psyllid (Cacopsylla pyri) management in a changing climate

Trap Height Affects Capture of the Pecan Nut Casebearer (Lepidoptera: Pyralidae)

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