Controlling of the black parlatoria scale insect parlatoria ziziphus (locus) (Homoptera: diaspididae) infested citrus trees using local safe materials [electronic resource].

Includes reference.

Three different materials of different groups, the first: surfactants (Sisi-6), the second : acidic materials (sulphonic acid) and the third: sticking agent (glue), of those proved pesticidal efficiency against other insects, were tested for controlling scale insects infested citrus trees. The following physico-chemical properties for the tested materials were determined : solUbility in water, free acidity or alkalinity and surface tension of their solutions In water at concentrations 0.5, 1.0 and 1.5 %, also their pesticidal efficiency against scale insects were determined by spraying each concentration on three ranches of orange tree highly infested with the black parlatoria scale insect. Par/atoria ziziphus (Locus). Infestation was determined before spraying and after 30 days of spraying then reduction percentage were calculateted. Obtained results indicated that all tested materials showed suitable solubility in water also indicated that suiphonic acid showed higly acidity while glue Is high in alkalinity and all tested materials reduced surface tension of water, sulphonic followed by Sisi-6 showed the higher effect followed by glue.

Summary in arabic.

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