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EVALUATION OF SOME CHEMICAL METHODS AND PLANT EXTRACTS FOR CONTROLLING ORIENTAL YELLOW SCALE-AONIDIELLA ORIENTALIS (NEW ST.) (HOMOPTERA: DIASPIDIDAE) | ||
| The Iraqi Journal of Agricultural Science | ||
| Article 1, Volume 37, Issue 2, 2006, Pages 91-96 | ||
| Authors | ||
| A. N. Al-Khalidy; R. F. Al-Jassany; O. K. Roman | ||
| Abstract | ||
| The study was conducted at a local plant nursery in Baghdad city, during March and August 2002. Mineral oil in different concentrations was evaluated to controlling oriental scale-Aonidiella orientolis (Newst.) on sour orange scalings Citrus aurantiumL. The results showed that different concentrations of 10, 20 and 40 ml/litter of mineral oil was caused high reduction in population density of A.orientalis after 4,7 and 15 days. Also the study showed that the effectiveness of mineral oil was continued after 30 day at 20 and 40ml /litter. Although concentration 40 ml/1 caused slight defoliation. Furthermore, the study showed that crude water extracts of Schanginia aegyptiaca Artemisia compestris Achillea fragrantissima, phragmites communis as well as Al-Zahi formulation of different concentrations at the rate 0.1, 0.2 and 0.3 ml/litter had no effect in reducing the population density of the pest. | ||
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