Predators of Oilseed Rape Pests

Büchs, Wolfgang; Alford, D. V.

doi:10.1002/9780470750988.ch12

Cited by 17 publications

(13 citation statements)

References 31 publications

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“…The rape stem weevil (C. napi) is a serious pest only in Central Europe and the cabbage stem flea beetle (Psylliodes chrysocephala) is confined mainly to maritime areas . Each pest species has its own specific key parasitoids but these are the same throughout Europe and also similarities in the species composition of polyphagous soil-surface dwelling predators (Büchs, Alford, 2003). There is thus common ground for attempting to develop a European Integrated pest management strategy for protecting oilseed rape crops against economic damage from these pests.…”

Section: Introductionmentioning

confidence: 99%

Integrated crop and pest management of winter oilseed rape (Brassica napus L.)

Büchs

Klukowski

Luik

et al. 2015

Zemdirbyste-Agriculture

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The six major pests of winter rape in Europe: cabbage stem flea beetle (Psylliodes chrysocephala), cabbage stem weevil (Ceutorhynchus pallidactylus), rape stem weevil (C. napi), pollen beetle (Meligethes spp.), cabbage seed weevil (C. obstrictus) and brassica pod midge (Dasineura brassicae) are partly, sometimes fully, controlled by natural enemies. Crop management can either support or counteract this natural control. An objective of this European Union project No. QLK5-CT-2001-01447 was to design and test an Integrated Crop Management (ICM) system that aimed to be energy-efficient and high-yielding, giving a good economic net return yet with high natural control of pests and to compare it with a standard STaNdard (STN) farming system aimed to depict a modern way of growing rape. The two systems were compared in joint experiments in five countries. Non-inversion tillage was used to increase parasitisation of pollen beetle and seed weevil and activity-densities of ground beetles. Schedule spraying gave more control of stem weevil larvae than spraying to control thresholds. Differences in yield between the two systems were generally small. Where control thresholds were used, pesticide use was more than halved. Cost of soil tillage and the seed yield achieved were the main factors determining net return. Embedded energy of nitrogen fertiliser was more important than energy used for soil tillage. In the ICM system, total production costs, total energy use, labour and fuel costs were lower despite the need for one additional herbicide treatment; however, energy efficiency and nitrogen utilisation was a little lower indicating a need to better adjust nitrogen supply to yield level. A farming system based on the principles of ICM with non-inversion cultivation of soil can be recommended to farmers as a strategy to improve natural control of economically-important pests of winter oilseed rape, usually increase net return, decrease environmental impact and use less resources.

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Section: Introductionmentioning

confidence: 99%

Integrated crop and pest management of winter oilseed rape (Brassica napus L.)

Büchs

Klukowski

Luik

et al. 2015

Zemdirbyste-Agriculture

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“…Alford et al, 2003). M. aeneus is attacked by different natural enemies, including predators (e.g., Büchs and Alford, 2003;Warner et al, 2008), parasitoids (e.g. Nilsson, 2003) and microsporidian parasites (Hokkanen et al, 1988;Lipa and Hokkanen, 1992).…”

Section: Introductionmentioning

confidence: 99%

Diversity of Beauveria spp. isolates from pollen beetles Meligethes aeneus in Switzerland

Meyling

Pilz

Keller

et al. 2012

Journal of Invertebrate Pathology

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“…Emergence of adults may be scarce or completely stop, especially in dry years (Nilsson et al, 2004), as recorded during the warm and dry summer of 2011. Besides, low rates of imagines emergence can be conditioned by possible effects of their natural enemies, both predators (Büchs & Alford, 2003; and parasitoids .…”

Section: Resultsmentioning

confidence: 99%

Biology and harmfulness of Brassica pod midge (Dasineura brassicae Winn.) in winter oilseed rape

Graora

Sivčev

et al. 2015

PESTIC PHYTOMED

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SUmmARyThe Brassica pod midge (Dasineura brassicae Winn.) is an important pest in oilseed rape (Brasica napus L.). It develops two generations per year and overwinters in the larval stage in cocoons in soil. Immigration of the first generation adults lasted from the beginning of April until the end of May. Larvae developed in pods from mid-April to mid-June, causing pod deformation and cracking, which resulted in premature falling out of seeds and yield reduction. Pod damage amounted to 11.6%. The emergence of the second generation adults was detected at the end of May and in the first ten days of June. D. brassicae was found to lay eggs in healthy pods and no correlation was found with the cabbage seed weevil, Ceutorhynchus assimilis Paykull.

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Predators of Oilseed Rape Pests

Cited by 17 publications

References 31 publications

Integrated crop and pest management of winter oilseed rape (Brassica napus L.)

Integrated crop and pest management of winter oilseed rape (Brassica napus L.)

Diversity of Beauveria spp. isolates from pollen beetles Meligethes aeneus in Switzerland

Biology and harmfulness of Brassica pod midge (Dasineura brassicae Winn.) in winter oilseed rape

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