Do cropping system and insecticide use in spring oilseed rape affect the abundance of pollen beetles (<i>Meligethes aeneus</i>Fab.) on the crop?

Veromann, Eve; Kevväi, R.; Luik, Anne; Williams, I. H.

doi:10.1080/09670870701376374

Cited by 13 publications

(5 citation statements)

References 8 publications

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“…Previously, it has been shown that regional pollen beetle abundance varies with relative area of brassica crops and landscape characteristics, wind directions and cropping systems, as well as with insecticide treatment . Here, it has been shown that insecticide application against pollen beetle in agricultural fields may reduce the numbers of that pest in nearby gardens too.…”

Section: Discussionmentioning

confidence: 93%

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Does insecticide application in a winter oilseed rape field influence the abundance of pollen beetle Meligethes aeneus in nearby ornamental flowers and vegetables?

et al. 2013

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Section: Discussionmentioning

confidence: 93%

“…This indicates that the insecticide application was ‘active’ for a couple of weeks. In spring oilseed brassicas, where competition for food is greater, insecticide application may even promote population increase by pollen beetle …”

Section: Discussionmentioning

confidence: 99%

Does insecticide application in a winter oilseed rape field influence the abundance of pollen beetle Meligethes aeneus in nearby ornamental flowers and vegetables?

et al. 2013

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“…Treatments reduced the size of the new generation, but not significantly, because the maximum numbers of new generation adults emerge from the soil from much lower old generation beetle densities. Application of insecticide not only results in more buds and flowers for feeding and egglaying by M. aeneus but probably also kills its natural enemies, which have potential to decrease the size of the new generation of M. aeneus (Veromann et al, 2008). In Lithuania, the findings of pest abundance assessments indicate that M. aeneus tended to occur in spring rape during the stem elongation -budding stages.…”

mentioning

confidence: 78%

The Effect of Insecticides on Pest Control and Productivity of Winter and Spring Oilseed Rape (Brassica napus L.)

Petraitienė¹,

Brazauskienė²,

Vaitelytė³

2012

Insecticides - Advances in Integrated Pest Management

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“…Despite the host-finding behaviours, studies have shown that the parasitism rates of B . aeneus can vary widely from 0 to 63% 24 – 26 , and can depend on the distance from adjacent habitat 27 and farmland management methods 28 – 30 . Landscape structure and composition significantly affect both B. aeneus and its parasitoids.…”

Section: Introductionmentioning

confidence: 99%

Landscape complexity effects on Brassicogethes aeneus abundance and larval parasitism rate: a two-year field study

Vilumets,

Kaasik,

Lof

et al. 2023

Sci Rep

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Global biodiversity has suffered a decline primarily attributed to landscape simplification and intensified agricultural practices. Agricultural environments, characterized by homogeneity and frequent disturbances, are often suboptimal habitats for various insect species. While agricultural fields do favour pests, they generally fail to provide suitable habitats for natural enemies. The inclusion of diverse supporting habitats, such as semi-natural habitats, grassy and woody field margins etc. surrounding agricultural fields, play a crucial role in fostering effective biodiversity conservation. Moreover, determining the influence of different adjacent habitat types is essential in elucidating their influence on pest abundance and parasitism rates. Our two-year field study focused on assessing the abundance of Brassicogethes aeneus and its parasitism rate. The findings revealed that the adjacent habitat type did not significantly increase pest abundance and the parasitism rate of B. aeneus larvae consistently stayed over the threshold for effective biological control throughout the fields. This was attributed to the high proportion (35 and 38% in the 2 study years) of semi-natural habitats within most of the 1 km radius study areas. While our study did not identify any specific adjacent habitat type or habitat within a 1 km radius that directly impacted B. aeneus abundance, it emphasises the intricate interplay between the pests, parasitism and the surrounding environment because the interactive effect of distance from the crop edge and habitat type had a significant influence on B. aeneus infestation levels but not on parasitism. Decision tree analysis suggests that > 18% semi-natural habitat is needed to ensure sufficient levels of parasitism for effective biological control. A comprehensive understanding of habitats that influence not only B. aeneus but also other pests is critical for the successful implementation of IPM strategies and conservation initiatives within the agricultural sector.

show abstract

Do cropping system and insecticide use in spring oilseed rape affect the abundance of pollen beetles (Meligethes aeneusFab.) on the crop?

Cited by 13 publications

References 8 publications

Does insecticide application in a winter oilseed rape field influence the abundance of pollen beetle Meligethes aeneus in nearby ornamental flowers and vegetables?

Does insecticide application in a winter oilseed rape field influence the abundance of pollen beetle Meligethes aeneus in nearby ornamental flowers and vegetables?

The Effect of Insecticides on Pest Control and Productivity of Winter and Spring Oilseed Rape (Brassica napus L.)

Landscape complexity effects on Brassicogethes aeneus abundance and larval parasitism rate: a two-year field study

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