2021
DOI: 10.1002/ps.6310
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Sampling pollen beetle (Brassicogethes aeneus) pressure in oilseed rape: which method is best?

Abstract: BACKGROUND The pollen beetle (Brassicogethes aeneus) is the most abundant pest of oilseed rape in spring and is potentially one of the most damaging. Adults feed on the pollen within closed flower buds and the damage leads to bud abscission, resulting in podless stalks and yield reduction. Several methods are currently used to monitor the pressure of this insect, such as counting the numbers of adults on the plants, quantifying the number of buds damaged by the insect before flowering or counting the number of… Show more

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Cited by 10 publications
(19 citation statements)
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“…In line with field observations performed by Seimandi‐Corda et al (2021), we observed a preferential feeding on young flower buds compared to intermediate and older ones. Ekbom and Borg (1996), Hervé et al (2015) and Seimandi‐Corda et al (2021) showed that pollen beetle females preferentially lay eggs on buds at an intermediate developmental stage. This suggests that the lower exploitation of intermediate buds for feeding might be a way to share resources that are used simultaneously for oviposition and feeding (López‐Ortega et al, 2019).…”
Section: Discussionsupporting
confidence: 93%
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“…In line with field observations performed by Seimandi‐Corda et al (2021), we observed a preferential feeding on young flower buds compared to intermediate and older ones. Ekbom and Borg (1996), Hervé et al (2015) and Seimandi‐Corda et al (2021) showed that pollen beetle females preferentially lay eggs on buds at an intermediate developmental stage. This suggests that the lower exploitation of intermediate buds for feeding might be a way to share resources that are used simultaneously for oviposition and feeding (López‐Ortega et al, 2019).…”
Section: Discussionsupporting
confidence: 93%
“…However, much less is known in other feeding guilds, including pollinivores. In line with field observations performed by Seimandi‐Corda et al (2021), we observed a preferential feeding on young flower buds compared to intermediate and older ones. Ekbom and Borg (1996), Hervé et al (2015) and Seimandi‐Corda et al (2021) showed that pollen beetle females preferentially lay eggs on buds at an intermediate developmental stage.…”
Section: Discussionsupporting
confidence: 93%
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“…Pollen beetles (Coleoptera: Nitidulidae) are flower‐visiting insects, with certain species causing damage to economically important crops via adult feeding on the pollen of unopened flower buds. This can lead to bud abscission and blind stalks, thereby preventing the growth of pods and leading to considerable seed yield loss (Seimandi‐Corda et al., 2021). Females lay their eggs in flower buds, where the larvae feed on pollen.…”
Section: Introductionmentioning
confidence: 99%
“…This could occur, as the migration of both insects depends on different temperatures (Johnen et al, 2010). The resulting consequence of higher pest abundances in warmer climates on crop damage and yield, however, depends on the timing of pest migration (Junk et al, 2015) relative to crop development (Weymann et al, 2015), for example, as pollen beetle immigration is most damaging during bud stage (Seimandi‐Corda et al, 2021; Williams, 2010). Thus, date of flowering may serve as proxy for vulnerability to pollen beetle damage and may modulate effects of high adult pollen beetle abundance on crop yield, yet evidence from field studies is lacking.…”
Section: Introductionmentioning
confidence: 99%