Abstract
Field dodder (Cuscuta pentagona) is a predominant plan parasite on Solanaceous vegetables in Iraq. Series of field experiments were carried out in Najaf province during 2018 season to evaluate the efficiency of Bonanza to control C. pentagona parasitizing on eggplant. Results highlighted that there were significant differences in all studied indicators in comparison with control treatment. Bonanza treatment was greater in term of leaves number, surface area, plant height, dry weight of root and shoot, less time to mature the first fruit and increasing the production of fruits for each plant. Leave contains of carbohydrates, mineral elements, salicylic acid, chlorophyll, total phenols and plant hormones (IAA, GA3) were increased compared to control treatment. Fruit contains of Ascorbic acid and total soluble solids were also increased. Bonanza weedicide was controlled C. pentagona on treated plants as well as increased early and total field productivity respectively (8.016, 67.68 t/ha−1) in comparison with control (6.690, 40.80 t/ha−1). GC-MS analyses showed that there is no weedicide residues on fruits treated with Bonanza after ten days.
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