Parasaissetia nigra
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Parasaissetia nigra (click on image to enlarge it)
Source: Central Science Laboratory, Harpenden Archive, British Crown - IPM Images
Source: Central Science Laboratory, Harpenden Archive, British Crown - IPM Images
Parasaissetia nigra (Nietner, 1861) - (nigra scale)
This scale has a world-wide distribution and is polyphagous, infesting many plants, including fruit trees and ornamentals. It may cause sooty moulds which results in crops having a reduced market value or are unsalable. The adult scale is dark-brown to black, strongly curved, and 3-4 mm long. However, there is considerable variation in colour and size. Females reproduce mainly parthenogenetically and males are rare. There may be up to 6 generations per year.
Synonyms:
Saissetia nigra
| Vernacular names | |
|---|---|
| • Deutsch: | schwarze Napfschildlaus |
| • English: | nigra scale |
| • Español: | escama negra |
| • Português: | cochonilha-escama-ovalada |
- Other images of Parasaissetia nigra (PaDIL - click to enlarge)
antenna
pores and setae
spiracle
hind leg
anal plate
