Evaluating integrated pest management tactics for onion thrips and pathogens they transmit to onion

Leach, Ashley; Reiners, Stephen; Fuchs, Marc; Nault, Brian A.

doi:10.1016/j.agee.2017.08.031

Cited by 24 publications

(28 citation statements)

References 46 publications

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“…Buckland et al (2013) also showed that onions treated with 134 kg N ha À1 had 23-31% fewer onion thrips than those onions treated with 402 kg N ha À1 . In contrast, Leach et al (2017) did not observe changes in onion thrips populations in onions grown in muck soil that were amended with up to 140 kg N ha À1 , but marketable bulb yields were identical to those amended with only 67 kg N ha À1 . These results indicated that onion growers could benefit by using less nitrogen at planting in muck soils without compromising marketable yield, which will decrease input costs and reduce excess nitrogen in the production system.…”

Section: Reduced Inputs Of Synthetic Fertilizersmentioning

confidence: 57%

“…Yet, excessive amounts of nitrogen fertilizer have been associated with greater pest and disease problems (Malik et al, 2009;Buckland et al, 2013). In contrast, Leach et al (2017) did not observe changes in onion thrips populations in onions grown in muck soil that were amended with up to 140 kg N ha À1 , but marketable bulb yields were identical to those amended with only 67 kg N ha À1 . Buckland et al (2013) also showed that onions treated with 134 kg N ha À1 had 23-31% fewer onion thrips than those onions treated with 402 kg N ha À1 .…”

Section: Reduced Inputs Of Synthetic Fertilizersmentioning

confidence: 81%

“…Of these, onion thrips (Thrips tabaci Lindeman) is often described as the most damaging pest of onion (Diaz-Montano et al, 2011;Gill et al, 2015). Thrips have the ability to reduce marketable yield by up to 60% (Leach et al, 2017). Thrips have the ability to reduce marketable yield by up to 60% (Leach et al, 2017).…”

Section: Potato and Onion Farming As Prime Examples Of Highinput Intementioning

confidence: 99%

“…Onion thrips feeding results in leaf tissue silvering and photosynthesis reduction leading to bulb size reduction and yield loss (Childers, 1997). Thrips have the ability to reduce marketable yield by up to 60% (Leach et al, 2017). Onion thrips also transmits important pathogens such as Iris yellow spot virus (IYSV), which can cause 100% yield loss (BA Nault, pers.…”

Section: Introductionmentioning

confidence: 99%

“…Onion thrips populations also have been shown to develop resistance to insecticides in New York, USA (Shelton et al, 2003), Canada (MacIntyre Allen et al, 2005), and New Zealand (Martin et al, 2003). Although insecticides continue to be relied upon for onion thrips control, efforts to reduce insecticide use have been encouraged through the adoption of action thresholds and thrips-resistant cultivars (Nault & Huseth, 2016;Leach et al, 2017). In New York, onion growers have substantially increased their adoption of action thresholds and rotation of insecticide classes with the primary goal of mitigating insecticide resistance development in onion thrips populations (Leach et al, 2018b).…”

Section: Introductionmentioning

confidence: 99%

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Soil conservation practices for insect pest management in highly disturbed agroecosystems – a review

Alyokhin

Nault

Brown

2019

Entomologia Exp Applicata

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Decline in soil health is a serious worldwide problem that decreases complexity and stability of agricultural ecosystems, commonly making them more prone to outbreaks of herbivorous insect pests. Potato (Solanum tuberosum L., Solanaceae) and onion (Allium cepa L., Amaryllidaceae) production is currently characterized by high soil disturbance and heavy reliance on synthetic inputs, including insecticides. Evidence suggests that adopting soil conservation techniques often (but not always) increases mortality and decreases reproductive output for the major insect pests of these important vegetable crops. Known mechanisms responsible for such an effect include increases in density and activity of natural enemy populations, enhanced plant defenses, and modified physical characteristics of respective agricultural habitats. However, most research efforts focused on mulches and organic soil amendments, with additional research needed on elucidating effects and their mechanisms for conservation tillage, cover crops, and arbuscular mycorrhizae.

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Section: Reduced Inputs Of Synthetic Fertilizersmentioning

confidence: 57%

Section: Reduced Inputs Of Synthetic Fertilizersmentioning

confidence: 81%

Section: Potato and Onion Farming As Prime Examples Of Highinput Intementioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Soil conservation practices for insect pest management in highly disturbed agroecosystems – a review

Alyokhin

Nault

Brown

2019

Entomologia Exp Applicata

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Reducing the risk of onion bacterial diseases: A review of cultural management strategies

Toit

LaHue

2023

Agronomy Journal

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Onion (Allium cepa L.) bacterial diseases can cause catastrophic crop losses. Chemical and biological control products are not curative and have mixed or limited efficacy at preventing onion bacterial diseases. Cultural management strategies, such as appropriate irrigation and nitrogen (N) management practices, can reduce the risk for bacterial infection and disease progression. This review synthesizes available literature on cultural management strategies to mitigate onion bacterial diseases and identifies knowledge gaps, promising strategies, and limitations. This synthesis revealed that high N fertilizer application rates, the use of overhead irrigation, and late‐season irrigation or rainfall, especially during field curing, can increase bacterial disease pressure. These factors contribute to conducive conditions for bacteria to colonize the foliage and neck of onion plants. Other in‐season strategies, such as reducing the total amount of irrigation or adjusting application rates of nutrients other than N, have not limited losses to bacterial bulb rots while maintaining desired yields. At the end of the growing season, appropriate timing of lifting bulbs (undercutting to sever the roots) and other practices that speed field curing can reduce the risk of bacterial bulb rots. However, it is less clear if topping (removing foliage) before or after curing influences bacterial bulb rots. Conflicting results reported for some cultural management strategies indicate that local conditions, such as climate and soil types, must be considered for optimizing practices to manage onion bacterial diseases. Advancing our scientific understanding and grower awareness of strategies that reduce onion bacterial diseases is a cost‐effective opportunity to avoid losses.

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Grower adoption of insecticide resistance management practices increase with extension‐based program

Leach

Hoepting

Nault

2018

Pest Management Science

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Implementation of the IRM education program was successful, as adoption rates of both practices increased within 3 years. Growers were surprisingly most receptive to adopting these practices to mitigate insecticide resistance as opposed to saving money. Developing extension-based programs that involve regular and interactive meetings with growers may significantly increase the adoption of IRM and related integrated pest management tactics. © 2018 Society of Chemical Industry.

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Evaluating integrated pest management tactics for onion thrips and pathogens they transmit to onion

Cited by 24 publications

References 46 publications

Soil conservation practices for insect pest management in highly disturbed agroecosystems – a review

Soil conservation practices for insect pest management in highly disturbed agroecosystems – a review

Reducing the risk of onion bacterial diseases: A review of cultural management strategies

Grower adoption of insecticide resistance management practices increase with extension‐based program

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