Morphology and biology of Phthorimaea operculella Zeller on tobacco

Krsteska, Vesna and Stojanoski, P. (2009) Morphology and biology of Phthorimaea operculella Zeller on tobacco. Tobacco, 59 (5-6). pp. 136-141. ISSN 0494-3244

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Phthorimea operculella Zeller is a pest that belongs to the Solanaceae family.
Greater larval population density of this pest can provoke severe economic losses in tobacco fields, reducing the quality and quantity of tobacco.
The imago of this species is a small butterfly with a dull brown yellow color. The adult caterpillar is creamy, with pink or greenish shade. The head, prothorax and dorsal part of the anal segment are dark brown to black.
Pupae are light yellow in the beginning and later they become brown. They are protected with thick cocoon which surface is covered with fibers and other small bits from the place where the cocoon was lying.
Caterpillars mine the leaves and petioles of tobacco plants. Sometimes, mines of this moth occupy almost entire leaf surface. The great number of mines reduces the assimilation capacity of the leaves, which results in slower growth and lower quality of tobacco.
In warmer years which favor the increase of larval population of P. operculella, severe economic losses can occur on tobacco both in seedbeds and in fields. The attacked tobacco is breakable and unsuitable for fabrication.

Item Type: Article
Subjects: Scientific Fields (Frascati) > Agricultural Sciences > Agriculture, forestry and fisheries
Divisions: Scientific Tobacco Institute
Depositing User: Ms Biljana Jordanoska
Date Deposited: 08 Oct 2016 18:46
Last Modified: 08 Oct 2016 18:46

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