Difference between revisions of "Pieris rapae"
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[[File:Pieris.rapae.mounted.jpg|250px|thumb|''Pieris rapae'' mounted female (click on image to enlarge it)<br/>Source: [http://commons.wikimedia.org/wiki/File:Pieris.rapae.mounted.jpg Wikimedia Commons]]] | [[File:Pieris.rapae.mounted.jpg|250px|thumb|''Pieris rapae'' mounted female (click on image to enlarge it)<br/>Source: [http://commons.wikimedia.org/wiki/File:Pieris.rapae.mounted.jpg Wikimedia Commons]]] | ||
<font color="#800000">'''''Pieris rapae'''''</font> Linnaeus - (small white butterfly)<br/> | <font color="#800000">'''''Pieris rapae'''''</font> Linnaeus - (small white butterfly)<br/> | ||
| − | is native to Europe and Asia and has been accidentally introduced into North America in 1860. It is now widespread in temperate regions. The caterpillars attack cabbage and other Brassicaceae. They tunnel into heads of cabbage, broccoli and cauliflower making them unmarketable. Damage to crops like rape/canola can be also substantial. The development from egg to adult lasts about a month under favorable conditions. There are up to 4 generations per year. The pupae of the last generation overwinter. The adults are good flyers, covering up to 12 km in one flight, and might form swarms. For control, chemical pesticides should be used with caution as they can also kill the many parasitoids and predators of this species. The use of [[Bacillus thuringiensis var. kurstaki (entomopathogen)|''Bacillus thuringiensis'' var. ''kurstaki'']] can be recommended and will not affect the natural enemies. | + | is native to Europe and Asia and has been accidentally introduced into North America in 1860. It is now widespread in temperate regions. The caterpillars attack cabbage and other Brassicaceae. They tunnel into the heads of cabbage, broccoli and cauliflower making them unmarketable. Damage to other crops like rape/canola can be also substantial. The development from egg to adult lasts about a month under favorable conditions. There are up to 4 generations per year. The pupae of the last generation overwinter. The adults are good flyers, covering up to 12 km in one flight, and might form swarms. For control, chemical pesticides should be used with caution as they can also kill the many parasitoids and predators of this species. The use of [[Bacillus thuringiensis var. kurstaki (entomopathogen)|''Bacillus thuringiensis'' var. ''kurstaki'']] can be recommended and will not affect the natural enemies. |
The adult wings are mainly white with a wingspan of 4-6 cm. The forewings have black tips and 2 (females) or 1 (males) black spots in the apical half. The forewing markings are less prominent compared to those of the related ''[[Pieris brassicae]]''. The hindwings are underneath creamy, yellowish to light green. The eggs are yellowish, conical and ribbed. Caterpillars are green with a thin dorsal and 2 lateral longitudinal yellow lines which can be interrupted. The pupae are greenish and tie themselves with a thread to leaves or stems. | The adult wings are mainly white with a wingspan of 4-6 cm. The forewings have black tips and 2 (females) or 1 (males) black spots in the apical half. The forewing markings are less prominent compared to those of the related ''[[Pieris brassicae]]''. The hindwings are underneath creamy, yellowish to light green. The eggs are yellowish, conical and ribbed. Caterpillars are green with a thin dorsal and 2 lateral longitudinal yellow lines which can be interrupted. The pupae are greenish and tie themselves with a thread to leaves or stems. | ||
Revision as of 16:21, 1 April 2014
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Pieris rapae Linnaeus - (small white butterfly)
is native to Europe and Asia and has been accidentally introduced into North America in 1860. It is now widespread in temperate regions. The caterpillars attack cabbage and other Brassicaceae. They tunnel into the heads of cabbage, broccoli and cauliflower making them unmarketable. Damage to other crops like rape/canola can be also substantial. The development from egg to adult lasts about a month under favorable conditions. There are up to 4 generations per year. The pupae of the last generation overwinter. The adults are good flyers, covering up to 12 km in one flight, and might form swarms. For control, chemical pesticides should be used with caution as they can also kill the many parasitoids and predators of this species. The use of Bacillus thuringiensis var. kurstaki can be recommended and will not affect the natural enemies.
The adult wings are mainly white with a wingspan of 4-6 cm. The forewings have black tips and 2 (females) or 1 (males) black spots in the apical half. The forewing markings are less prominent compared to those of the related Pieris brassicae. The hindwings are underneath creamy, yellowish to light green. The eggs are yellowish, conical and ribbed. Caterpillars are green with a thin dorsal and 2 lateral longitudinal yellow lines which can be interrupted. The pupae are greenish and tie themselves with a thread to leaves or stems.
| Vernacular names | |
|---|---|
| • Deutsch: | Kleiner Kohlweissling |
| • English: | small white butterfly cabbage butterfly imported cabbageworm |
| • Español: | pequeña mariposa de la col gusano del repollo |
| • Français: | piéride de la rave |
Synonyms:
Artogeia rapae
For details see the respective page in Wikipedia.
- Other images of Pieris rapae (Wikimedia Commons and IPM Images - click to enlarge)
mounted male
egg
caterpillar
caterpillar on broccoli
pupa
infestation on cabbage
.jpg)
