The field experiment conducted at 2019 ingreenhouse of the college of agriculture, University of Anbar to study the effect of seaweed extracts and Evisect 50 WP pesticide on the population density of whitefly Bemisia tabaci and some characteristics of eggplant Solanum melongena L. growth. The population density nymphs and adults rate decreased at use the seaweed extracts after 60 days of transplanting compared with control treatments. This effect was reflected in increased of some vegetative characteristics as plant height, number of leaves per plant-1, dry shoot, and root weight. The same effect was recorded in chemical characters as chlorophyll (spad), Nitrogen (N%), Phosphorus (P%), and Potassium (K%) in the leaves. This experiment reached a reliable conclusion to the adoption of used natural materials as one of integrated pest management to reduce whitefly damage.
An experiment was conducted to study the effect of the phytohormone salicylic acid alone or in combination with Acetamiprid and Matrixine plus in reducing the effect of the white fly, Bemisia tabaci, which is one of the important insects that infects the eggplant crop Solaum melongena L. The study showed that all tested concentrations of salicylic acid mixed with pesticides gave effective results after periods of treatment, and an increase in the efficiency of pesticides against the numbers of nymphs and adults of the insect and some growth characteristics of the eggplant crop when compared with the treatment with pesticides alone. This can be a good economic orientation for pest control by reducing the recommended rate and its reflection on the effects of environmental pollution.
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