Abstract
Effect of some nutritional plant sprays on the population of Tetranychus arabicus (Attiah) (Acarina, Tetranychidae) Studies on the effect of inorganic compounds on the population density ofT. arabicus indicated that all materials gave over 50% reduction after 15 days except chromic chloride and magnesium oxide which gave only 33% each, while potassium iodine built up mites population. As such, these compounds are potentially important mites-control chemicals. Also data showed conclusively that inorganic compounds may be used as well to manipulate host plant resistance, as to correct crop nutritional difficiency. However, the mode of action and the time of application of these compounds under natural field conditions still need further investigations.
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