Sampling, Trapping and Rearing Oilseed Rape Pests and their Parasitoids

Williams, I. H.; Büchi, R.; Ulber, B.

doi:10.1002/9780470750988.ch10

Cited by 23 publications

(19 citation statements)

References 25 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…Pollen beetle larvae were sampled during flowering of OSR in late April 2005 (GS 64-65) at sunshine between 10 a.m. and 2 p.m. on 25 randomly chosen OSR plants along a 50-m transect located in the central area of each study plot by putting a plastic bag over the top raceme, cutting off the raceme and subsequently counting larvae in the laboratory. Parasitism was investigated by rearing a given number of second instar pollen beetle and second to third instar stem weevil larvae (mostly 100, fewer if not sufficient large larvae were available) in separate plastic boxes containing moistened peat-free commercial garden substrate (Williams et al 2003). Host larvae were placed onto the surface of the substrate where they immediately burrowed down in order to pupate.…”

Section: Pests Parasitoids and Yield Parameters (Response Variables)mentioning

confidence: 99%

Parasitism of stem weevils and pollen beetles in winter oilseed rape is differentially affected by crop management and landscape characteristics

et al. 2009

View full text Add to dashboard Cite

We examined the influence of crop management (crop density, nitrogen fertilization level) and landscape parameters [areal proportion of oilseed rape (OSR), Brassica napus L. var. oleifera Metzg. (Brassicaceae), and proportions, lengths and distances of various non-crop habitats] on the parasitism of stem weevils (Ceutorhynchus spp.; Coleoptera: Curculionidae) and pollen beetles (Meligethes spp.; Coleoptera: Nitidulidae) by parasitic wasps (Hymenoptera: Ichneumonidae). Larvae of host insects were sampled in 29 winter OSR fields located in landscapes ranging from structurally simple to complex. Spatial scales of landscape effects were considered at eight radii (250-2,000 m) centered in the studied OSR fields. Stem weevil parasitism was unaffected by crop management variables but negatively related to roadside strip length at radius 250 m and grassy fallow area at a radius of 500 m. Pollen beetle parasitism was positively related to the crop density and to lengths of roadside strips and hedges within a radius of 250 m. Thousand kernel mass of OSR was positively related to pollen beetle parasitism but unrelated to stem weevil parasitism.

show abstract

Section: Pests Parasitoids and Yield Parameters (Response Variables)mentioning

confidence: 99%

Parasitism of stem weevils and pollen beetles in winter oilseed rape is differentially affected by crop management and landscape characteristics

et al. 2009

View full text Add to dashboard Cite

show abstract

“…Oase or Mozart) were offered to the beetles and renewed at least once a week. After the end of aestivation, in September, wet filter paper was added to the boxes to stimulate egg laying by the females (Williams et al, 2003). Eggs were collected weekly and stored in plastic boxes on wet sand at 2 ± 1 °C.…”

Section: Methodsmentioning

confidence: 99%

Performance of cabbage stem flea beetle larvae (Psylliodes chrysocephala) in brassicaceous plants and the effect of glucosinolate profiles

Döring

Ulber

2020

Entomologia Exp Applicata

Self Cite

View full text Add to dashboard Cite

The cabbage stem flea beetle (CSFB), Psylliodes chrysocephala L. (Coleoptera: Chrysomelidae), is one of the most important pests in European winter oilseed rape production. Adult beetles feed on young leaves whereas larvae mine within the petioles and stems. Larval infestation can cause significant crop damage. In this study, the host quality for CSFB of four oilseed rape (Brassica napus L.) cultivars and seven other brassicaceous species with different glucosinolate (GSL) profiles was assessed under controlled conditions. Larval instar weights and mortality were measured after 14 and 21 days of feeding in the petioles of test plants. To study the impact of GSL on the performance of larvae, the GSL contents in petioles from non-infested and infested plants were analysed before, and 21 days after, the start of larval infestation. Larval performance was not significantly different between the four cultivars of oilseed rape, but differed considerably among the other brassicaceous species tested. In comparison to the weight of larvae in the standard B. napus cv. Robust, the larval weight was higher in turnip rape (Brassica rapa L. var. silvestris) and significantly reduced in white mustard (Sinapis alba L.), oil radish (Raphanus sativa L. var. oleiformis), and cabbage (Brassica oleracea L. convar. capitata var. alba). The duration of larval development increased in white mustard and oilseed radish. The GSL profiles of the petioles showed little difference between non-infested and infested plants of oilseed rape whereas the content of aliphatic GSL increased in the infested turnip rape plants. In contrast, the aliphatic and benzenic GSL decreased in infested Indian rape (B. rapa subsp. dichotoma Roxb.). Larval weight was not correlated with the total GSL content of plants, neither before infestation nor 21 days after. Larval weight was positively correlated with progoitrin and 4-hydroxyglucobrassicin. White mustard, which provides inferior host quality for larval development, has the potential to introduce insect resistance into high-yielding oilseed rape cultivars in breeding programmes.

show abstract

“…Insects were sampled using yellow water traps (210 × 310 × 90 mm). Yellow water traps have been used extensively to sample pests and their parasitoids in oilseed rape (Williams et al 2003b). Yellow is the most effective colour for trapping them.…”

Section: Methodsmentioning

confidence: 99%

Key pests and their parasitoids on spring and winter oilseed rape in Estonia

Veromann¹,

Luik²,

Metspalu³

et al. 2006

Entomol. Fennica

View full text Add to dashboard Cite

The pests and their hymenopterous parasitoids present in a spring and a winter oilseed rape crop in Estoniawere studied. Meligethes aeneus was themost abundant pest in both crops. Other crucifer-specialist pests included: Ceutorhynchus assimilis, C. pallidactylus, C. rapae, C. floralis, C. pleurostigma and Phyllotreta spp., but their abundance was low. Four species of parasitoids of M. aeneus larvae (Diospilus capito, Phradis morionellus, P. interstitialis and Tersilochus heterocerus) and threeof C. assimilis larvae (Mesopolobus morys, Stenomalina gracilis and Trichomalus perfectus) were also found.

show abstract

Sampling, Trapping and Rearing Oilseed Rape Pests and their Parasitoids

Cited by 23 publications

References 25 publications

Parasitism of stem weevils and pollen beetles in winter oilseed rape is differentially affected by crop management and landscape characteristics

Parasitism of stem weevils and pollen beetles in winter oilseed rape is differentially affected by crop management and landscape characteristics

Performance of cabbage stem flea beetle larvae (Psylliodes chrysocephala) in brassicaceous plants and the effect of glucosinolate profiles

Key pests and their parasitoids on spring and winter oilseed rape in Estonia

Contact Info

Product

Resources

About