Abstract
Onion production is reliant on synthetic chemical inputs such as fertilizer and pesticides to ensure its profitability. In the Great Lakes region (USA), onion thrips (Thrips tabaci) and a complex of bacterial pathogens that cause bulb rot disease threaten the sustainability of onion production. The potential exists for reducing T. tabaci infestations and bulb rot disease incidence in onions by decreasing the amounts of fertilizer applied at planting and the insecticide applied to foliage during the season. In a three-year study that included 20 New York commercial onion fields, the impact of synthetic fertilizer (no fertilizer, half rate, and full rate) and insecticide use (action threshold-based application program and weekly application program) on T. tabaci populations and bulb rot disease incidence was examined. Results indicated that the amount of fertilizer applied to an onion at planting had no impact on T. tabaci population levels, bulb rot disease incidence, or onion bulb size and yield. In contrast, insecticide use had the greatest impact on reducing T. tabaci densities. Both the action threshold-based program and weekly spray program reduced T. tabaci infestation levels below the economic injury level, but the action threshold program averaged 2.3 fewer applications per season. The insecticide program had no effect on bulb rot incidence, bulb size, or yield. We conclude that synthetic fertilizer and insecticide inputs can be reduced substantially without compromising onion bulb yields, and this should lead to greater profits and a reduction of chemicals in the environment.
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Claims 10
Claim · model-written summary
Fertilizer amount had no effect on onion thrips populations.
- Taxon
- onion
Allium cepae0 - Treatment
- amount of fertilizer applied to an onion at plantinge0
- Interactor
- T. tabaci
Thrips tabacie0pest - Outcome
- T. tabaci population levelse0
- Direction
- no impacte0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the amount of fertilizer applied to an onion at planting had no impact on T. tabaci population levels”
Claim · model-written summary
Fertilizer amount had no effect on bulb rot incidence.
- Taxon
- onionAllium cepae0
- Treatment
- amount of fertilizer applied to an onion at plantinge0
- Outcome
- bulb rot disease incidencee0
- Direction
- no impacte0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the amount of fertilizer applied to an onion at planting had no impact on T. tabaci population levels, bulb rot disease incidence”
Claim · model-written summary
Fertilizer amount had no effect on onion bulb size or yield.
- Taxon
- onionAllium cepae0
- Treatment
- amount of fertilizer applied to an onion at plantinge0
- Outcome
- onion bulb size and yielde0
- Direction
- no impacte0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the amount of fertilizer applied to an onion at planting had no impact on T. tabaci population levels, bulb rot disease incidence, or onion bulb size and yield.”
Claim · model-written summary
Insecticide reduced thrips density.
- Taxon
- OnionAllium cepat0
- Treatment
- insecticide usee0
- Interactor
- T. tabaciThrips tabacie0pest
- Outcome
- T. tabaci densitiese0
- Direction
- reducinge0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“insecticide use had the greatest impact on reducing T. tabaci densities.”
t0“Impact of Reducing Synthetic Chemical Inputs on Pest and Disease Management in Commercial Onion Production Systems”
Claim · model-written summary
The threshold program reduced thrips below the economic injury level.
- Taxon
- OnionAllium cepat0
- Treatment
- action threshold-based programe0
- Interactor
- T. tabaciThrips tabacie0pest
- Outcome
- T. tabaci infestation levelse0
- Direction
- reducede0
- Comparator
- economic injury levele0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Both the action threshold-based program and weekly spray program reduced T. tabaci infestation levels below the economic injury level”
t0“Impact of Reducing Synthetic Chemical Inputs on Pest and Disease Management in Commercial Onion Production Systems”
Claim · model-written summary
The weekly spray program reduced thrips below the economic injury level.
- Taxon
- OnionAllium cepat0
- Treatment
- weekly spray programe0
- Interactor
- T. tabaciThrips tabacie0pest
- Outcome
- T. tabaci infestation levelse0
- Direction
- reducede0
- Comparator
- economic injury levele0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Both the action threshold-based program and weekly spray program reduced T. tabaci infestation levels below the economic injury level”
t0“Impact of Reducing Synthetic Chemical Inputs on Pest and Disease Management in Commercial Onion Production Systems”
Claim · model-written summary
The threshold program averaged 2.3 fewer applications per season than weekly spraying.
- Taxon
- OnionAllium cepat0
- Treatment
- action threshold programe0
- Outcome
- applications per seasone0
- Direction
- fewere0
- Value
- 2.3e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the action threshold program averaged 2.3 fewer applications per season.”
t0“Impact of Reducing Synthetic Chemical Inputs on Pest and Disease Management in Commercial Onion Production Systems”
Claim · model-written summary
Insecticide program did not affect bulb rot incidence.
- Taxon
- OnionAllium cepat0
- Treatment
- insecticide programe0
- Outcome
- bulb rot incidencee0
- Direction
- no effecte0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The insecticide program had no effect on bulb rot incidence”
t0“Impact of Reducing Synthetic Chemical Inputs on Pest and Disease Management in Commercial Onion Production Systems”
Claim · model-written summary
Insecticide program did not affect bulb size or yield.
- Taxon
- OnionAllium cepat0
- Treatment
- insecticide programe0
- Outcome
- bulb size, or yielde0
- Direction
- no effecte0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The insecticide program had no effect on bulb rot incidence, bulb size, or yield.”
t0“Impact of Reducing Synthetic Chemical Inputs on Pest and Disease Management in Commercial Onion Production Systems”
Claim · model-written summary
Authors recommend reducing fertilizer and insecticide without compromising onion yield.
- Taxon
- onionAllium cepae0
- Outcome
- synthetic fertilizer and insecticide inputs can be reduced substantially without compromising onion bulb yieldse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“synthetic fertilizer and insecticide inputs can be reduced substantially without compromising onion bulb yields”
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