It was found that the armoured scale has a cycle of two generations per year. Most often, it is the breeding females that overwinter rather than young females. Modeling the effects of climate on date palm scale Parlatoria blanchardi population dynamics during different phenological stages of life history under hot arid conditions. To develop an effective control against DPS in arid regions, it is essential to know its bio-ecology including population dynamics and climatic factors Basheer, Abd-Alnabi M.

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Species: Saissetia oleae Notes on Taxonomy and Nomenclature Top of page It is thought that there are several biologically different races of Saissetia oleae De Lotto, ; Bartlett, Signoret mistakenly attributed the authorship of Lecanium oleae to Bernard in For quite a few years other authors followed him. De Lotto recognised the mistake and correctly attributed the authorship to Olivier. Description Top of page Mature adult S.

The limbs of each insect are short and are hidden beneath the body, and eyes are only visible in younger specimens with pale bodies. Early instars are difficult to distinguish from those of other species of soft scale. First-instar crawlers 0. Adult females lack wings; they are mm across, approximately circular in outline, fairly flat, yellow or grey and granular in appearance initially, becoming hemispherical and dark grey or brown to black and matt with age Gill, Adult females develop an egg-filled hollow under the body as they become increasingly convex in shape.

The small, winged males are rare. For an authoritative identification, slide-mounted adult female specimens should be examined under a compound light microscope.

Diagnostic characters of slide-mounted females are: dorsal reticulation absent, areolation present; large discal seta present on each anal plate; dorsal setae conical; blunt or only slightly frayed marginal setae present between the anterior and posterior stigmatic clefts on each side; ventral submarginal tubular ducts of one type only; tibio-tarsal articulatory scleroses usually present.

Thorough descriptions and comments on morphological variation of S. Distribution Top of page S. These records are indicated as NHM date. The record for Netherlands in is a quarantine interception. Distribution Table Top of page The distribution in this summary table is based on all the information available. When several references are cited, they may give conflicting information on the status.

Further details may be available for individual references in the Distribution Table Details section which can be selected by going to Generate Report.


Parlatoria oleae – Olive violet scale

Dukinos Articles parlatoria oleae pdf file download Geographic distribution and relative abundance of the. Armored scale insects Diaspididaepests of fruit orchards and their control in the Republic of Georgia. Studio morfologico, etologico e fisiologico del Coccophagoides similis Masi e Azotus matritensis Mercet. Coccoidea of deciduous fruit orchards in some European countries.



Insect pest management and ecological research cambridge core. Nouvelle table des genres avec notes et synonymies. Parlatoria — Wikipedia Oppenheim D, Lindman N, Although the life table is an important tool in human demography and ecology, a disadvantage of several lifetable approaches is the inability to account for individuals subject to mutually exclusive causes of death. Revista de Investigaciones Agropecuarias, 5 Patologia Vegetal10 1: Diaspididae olive parlatoria scale donaldson and tsang, parthenolecanium corni bouche hemiptera. Entomological Society of America members Sign in via society site. Methodologies and strategies of pest control in citriculture.


Its presence does not usually present major problems, although in olive groves destined for greening, the application of control treatments may be necessary. Damage caused by the violet scale The violet scale does not secrete molasses when feeding, so that its activity does not favor the appearance of the fungus of the bold of the olive tree or fumagina. However, this scale produces spots on the skin and deformations of the fruit with the consequent devaluation of the crop. The olive may suffer a certain reduction of fat yield. Although it is still a pest that feeds on the olive tree and it is necessary to keep it under control. If the infestation levels are low, their presence is controlled by other predatory insects especially the parasite Aphitis Sp and their activity is barely noticeable.

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