Ovipositional Patterns and Larval Movement of Delia antiqua (Diptera: Anthomyiidae) on Sprouted Bulb and Seedling Onions

Mowry, Thomas M.

doi:10.1093/jee/86.5.1440

Cited by 7 publications

(6 citation statements)

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“…Our results are consistent with those of Harris and Miller [ 24 ], who found that onion flies were most attracted to upright cylinders 2–12 mm in diameter, and oviposited seven times more on 15 cm high cylinders as compared to 2 cm. Our results are also consistent with Mowry [ 25 ] as oviposition was low on young onion seedlings. When given the choice of a seedling or a sprouted onion bulb, female D. antiqua deposited 60–200 times more eggs on the sprouted bulb than the seedling [ 25 ].…”

Section: Discussionsupporting

confidence: 93%

“…Our results are also consistent with Mowry [ 25 ] as oviposition was low on young onion seedlings. When given the choice of a seedling or a sprouted onion bulb, female D. antiqua deposited 60–200 times more eggs on the sprouted bulb than the seedling [ 25 ]. Ovipositing females choose the host plant and they must be able to recognize the suitability of the host plant for the development of their progeny.…”

Section: Discussionsupporting

confidence: 93%

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Oviposition, Feeding Preferences and Distribution of Delia Species (Diptera: Anthomyiidae) in Eastern Canadian Onions

Mlynarek

MacDonald

Sim

et al. 2020

Insects

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Delia antiqua, Delia platura and Delia florilega are three root maggot species commonly considered pests in Eastern Canadian onions. The onion maggot, D. antiqua, is considered the primary root maggot pest in onion but it remains unclear whether the other two species are also causing damage. In order to develop updated management strategies for root maggot, we tested adult oviposition and feeding preference by Delia larvae on four growth stages of onion using bioassays and we determined the Delia species composition across the four major onion growing regions in eastern Canada. Delia species oviposit readily on onion at the 5–7 true leaf growth stage but damage on onions is not statistically different between Delia species in our zero-inflated models. The four eastern Canadian onion growing regions have different proportions of Delia species. Southern Ontario and Quebec were the only two regions where Delia antiqua was collected. The highest average numbers of Delia spp. were caught in Quebec and Nova Scotia. Our study shows that timing is important in implementation of management strategies for root maggot in Eastern Canadian onions.

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Section: Discussionsupporting

confidence: 93%

Section: Discussionsupporting

confidence: 93%

Oviposition, Feeding Preferences and Distribution of Delia Species (Diptera: Anthomyiidae) in Eastern Canadian Onions

Mlynarek

MacDonald

Sim

et al. 2020

Insects

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“…Sentinel onions were grown from bulbs harvested the previous year and stored through the winter at 4.4 °C. Plants were grown from sprouted bulbs because second‐year growth of these biennials is especially attractive to ovipositing onion maggot (Mowry, 1993). Bulbs were planted in pots in late April to early May in a mixture of muck soil and potting soil mix in 15 cm diameter pots with their necks 5 cm below the soil surface.…”

Section: Methodsmentioning

confidence: 99%

Spatial and temporal patterns of onion maggot adult activity and oviposition within onion fields that vary in bordering habitat

Werling

Nyrop

Nault

2005

Entomologia Exp Applicata

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In New York, onion [Allium cepa L. (Alliaceae)] fields often border woods or other vegetable fields. Because onion maggot adults, Delia antiqua (Meigen) (Diptera: Anthomyiidae), spend a significant portion of their time outside of onion fields, surrounding habitat may affect patterns of fly activity and oviposition within onion fields. To better understand these patterns throughout the onion‐growing season, first‐, second‐, and third‐flights maggot adult (male and female) activity was monitored using yellow sticky cards. Half of the monitored fields bordered woods, whereas the other half bordered other onion or vegetable fields. Within all fields, yellow sticky cards were placed at five distances along a transect beginning at the onion field edge extending into the field center. First‐flight male and female adult activity was greatest along onion field edges and was especially high along edges bordering woods. This pattern diminished during the second flight and was absent during the third. To determine if spatial patterns of onion maggot oviposition by first‐flight onion maggots were similar to first‐flight adult activity patterns, potted onion plants were placed in onion fields that bordered or did not border woods in late May and early June 2003. The number of eggs laid in the soil at the base of each plant was recorded. Unlike spatial patterns of first‐flight adult activity, oviposition patterns were not affected by bordering habitat or distance from the field edge. Based on the activity of onion maggot adults in onion fields, future and existing control strategies should consider targeting first‐flight adults along field edges rather than across entire fields, especially in fields that border woods. In contrast, based on spatial patterns of oviposition within onion fields, controls targeting onion maggot larvae should be applied on a fieldwide basis.

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“…1982, Loosjes 1976. Females are typically deposited in batches of two to four eggs per plant (Mowry 1993). The larvae are developing through three instars in two to three weeks and later pupating in the soil (Hoffman et.…”

Section: Introductionmentioning

confidence: 99%

“…On another side, there are very limited effective and practical non-chemical procedures for control of onion maggot. For example, trap cropping has been considered in the past as a primitive method of onion maggot control (Mowry 1993). Natural enemies, also, considered one of non-chemical methods that may play a role in preventive of onion maggot (Hoffmann et.…”

Section: Introductionmentioning

confidence: 99%

Utilization Clonal Selection Program to Improve Resistance Garlic (Allium sativum L.) Against Onion Maggot (Delia antiqua M.)

Ragheb

Abu-Shall²

2021

Scientific Journal of Agricultural Sciences

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Onion maggot (Delia antiqua M) is an economically important pest of Allium crops throughout the world; thus, management of this pest is required to achieve economic returns. Accordingly, this study aimed to select some clones of garlic resistant to infestation with onion maggot through the implementation three cycles of clonal selection program within some improved garlic clones derived from Balady cultivar. Afterwards, the developed clones and their original population were evaluated in a randomized complete block design with three replicates. Thus, this study was conducted during four successive winter seasons of 2016/2017 to 2019/2020. The obtained results showed, clearly, significant differences among garlic selected clones, as well as their original population in their response to Delia antiqua M. and their bulb characteristics. Where, the selected clones varied between resistant and ability of infestation by onion maggot that was between 0.00% and 22.45%, with classification into five groups by cluster analysis: HR (highly resistant), R (resistant), MR (moderately resistant), MS (moderately susceptible) and S (susceptible). Among the 16 selected clones three clones were HR; and six clones were R to onion maggot. Moreover, improvement percentage for the same character using clonal selection program was between 48.97% to 100%, which reflected that clonal selection could be an effective way to improve onion maggot resistance. Also, utilization of these improved clones will promise in minimize environmental pollution.

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Ovipositional Patterns and Larval Movement of Delia antiqua (Diptera: Anthomyiidae) on Sprouted Bulb and Seedling Onions

Cited by 7 publications

References 0 publications

Oviposition, Feeding Preferences and Distribution of Delia Species (Diptera: Anthomyiidae) in Eastern Canadian Onions

Oviposition, Feeding Preferences and Distribution of Delia Species (Diptera: Anthomyiidae) in Eastern Canadian Onions

Spatial and temporal patterns of onion maggot adult activity and oviposition within onion fields that vary in bordering habitat

Utilization Clonal Selection Program to Improve Resistance Garlic (Allium sativum L.) Against Onion Maggot (Delia antiqua M.)

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