PP 1/073 (4) Psylliodes chrysocephala on oilseed rape

EPPO Bulletin ◽  
2020 ◽  
Keyword(s):  
Oilseed Rape ◽  
Psylliodes Chrysocephala

scholarly journals Differences in flight activity of pests on winter and spring oilseed rape

2012 ◽  
Vol 38 (No. 4) ◽  
pp. 139-144 ◽  
Author(s):  
J. Šedivý ◽  
J. Vašák
Keyword(s):  
Oilseed Rape ◽  
Brevicoryne Brassicae ◽  
Flight Activity ◽  
Meligethes Aeneus ◽  
Winter Rape ◽  
Athalia Rosae ◽  
Ceutorhynchus Obstrictus ◽  
Dasineura Brassicae ◽  
Psylliodes Chrysocephala ◽  
Spring Rape

For 6 years the flight activity of pests on winter and spring oilseed rape was studied from spring till harvest, using yellow traps. In all years the flight intensity was higher in winter rape than in spring rape. The dominant insect pests of winter oilseed rape were Ceutorhynchus obstrictus, C. napi, C. pallidactylus, Dasineura brassicae, Meligethes aeneus, Phyllotreta atra and Ph. nigripes; subdominant were Athalia rosae, Brevicoryne brassicae and Psylliodes chrysocephala. In spring rape the dominant species were Brevicoryne brassicae, Ceutorhynchus obstrictus, Dasineura brassicae, Meligethes aeneus, Phyllotreta atra and Ph. nigripes; subdominant were Athalia rosae, Ceutorhynchus napi, C. pallidactylus and Psylliodes chrysocephala. Dasineura brassicae was not evaluated from trap catches. The damage by D. brassicae is higher to pods on axillary branches than on the main inflorescence. The occurrence of pests on spring rape was tied to a unsuitable phenophase of the plants at the time of flight activity and to the suitability of food. Winter rape requires a higher intensity of chemical treatment against pests than spring rape.

scholarly journals Feeding of the cabbage stem flea beetle Psylliodes chrysocephala on high and low glucosinolate cultivars of oilseed rape

1996 ◽  
Vol 80 (1) ◽  
pp. 87-89 ◽  
Author(s):  
E. Bartlet ◽  
R. Mithen ◽  
S. J. Clark
Keyword(s):  
Oilseed Rape ◽  
Flea Beetle ◽  
Psylliodes Chrysocephala

The separation of two hymenopteran parasitoids, Tersilochus obscurator and Tersilochus microgaster (Ichneumonidae), of stem-mining pests of winter oilseed rape using DNA, morphometric and ecological data

2005 ◽  
Vol 95 (4) ◽  
pp. 299-307 ◽  
Author(s):  
H. Barari ◽  
A.W. Ferguson ◽  
R.W. Piper ◽  
E. Smith ◽  
D.L.J. Quicke ◽  
...  
Keyword(s):  
Oilseed Rape ◽  
Taxonomic Status ◽  
Molecular Techniques ◽  
Coi Gene ◽  
Ecological Data ◽  
Winter Oilseed Rape ◽  
Morphometric Characters ◽  
Ceutorhynchus Pallidactylus ◽  
Psylliodes Chrysocephala ◽  
The Uk

AbstractTersilochus obscurator Aubert and Tersilochus microgaster (Szépligeti) are larval endoparasitoids of economically-important stem-mining pests of winter oilseed rape (Brassica napus L.) in Europe. They are difficult to separate morphologically. Their hosts are Ceutorhynchus pallidactylus (Marsham) and Psylliodes chrysocephala Linnaeus, respectively. The parasitoids' taxonomic status, identification, host range and phenology were studied using genetic, morphometric and ecological data. The study used 527 female parasitoids from the UK and Germany, either field-collected in emergence traps or reared from field-collected host larvae. Two morphometric characters, the ovipositor sheath to first metasomal tergite ratio and the percentage of the mesopleuron spanned by the sternaulus, were measured. A 440 bp section of mitochondrial DNA cytochrome oxidase subunit I (COI) gene was sequenced from 35 parasitoids reared from C. pallidactylus, 20 reared from P. chrysocephala and individuals from two outgroups, Tersilochus heterocerus Thomson and Phradis interstitialis Thomson. Distinct and invariable COI sequences corresponded exclusively to each parasitoid group, confirming that T. obscurator and T. microgaster are discrete species. Measurements of host-reared and COI-sequenced specimens indicated that the ranges of both morphometric characters overlapped between species. Using these ranges as criteria, all but 3.6% of UK specimens and 2% of German specimens were identifiable to species without reference to host or phenology. There were differences in emergence phenology in the UK, adult T. microgaster emerging from winter diapause by 29 March 2000, T. obscurator emerging between 12 April and 24 May 2000. The value of molecular techniques in the identification of closely-related parasitoid species is discussed.

scholarly journals Integrated pest management strategies for cabbage stem flea beetle ( Psylliodes chrysocephala ) in oilseed rape

GCB Bioenergy ◽  
2021 ◽  
Author(s):  
Patricia A. Ortega‐Ramos ◽  
Duncan J. Coston ◽  
Gaëtan Seimandi‐Corda ◽  
Alice L. Mauchline ◽  
Samantha M. Cook
Keyword(s):  
Integrated Pest Management ◽  
Pest Management ◽  
Oilseed Rape ◽  
Flea Beetle ◽  
Management Strategies ◽  
Psylliodes Chrysocephala

Distributions and interactions of the stem miners Psylliodes chrysocephala and Ceutorhynchus pallidactylus and their parasitoids in a crop of winter oilseed rape (Brassica napus)

2006 ◽  
Vol 119 (2) ◽  
pp. 81-92 ◽  
Author(s):  
Andrew W. Ferguson ◽  
Hassan Barari ◽  
Douglas J. Warner ◽  
James M. Campbell ◽  
Emma T. Smith ◽  
...  
Keyword(s):  
Brassica Napus ◽  
Oilseed Rape ◽  
Winter Oilseed Rape ◽  
Ceutorhynchus Pallidactylus ◽  
Psylliodes Chrysocephala
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