02919cab a2200313Ia 45 0 u212750 SIRSI 100720s2015 ua ss b eng d EAL eng ara ART MUJPPP V6 No4 6 Nour El-Deen, M. A. Mansoura University Journal of plant protection and pathology, 2015 v. 6 (4) [electronic resource]. Effect of salselic acid, potassium sulphat, boric acid and ascobein on moving stages of Tetranychus Udicae Koch infesting soybean plants and its yield [electronic resource]. تأثير حمض السلسيليك وكبريتات البوتاسيوم وحمض البوريك والاسكوبين على الاطوار المتحركة للعنكبوت الأحمر الذى يصيب نباتات فول الصويا مع حساب كمية المحصول. p.649-662. Includes reference. The soybean plants were fertilized with two methods chemical and bio fertilizers and each method soybean plants were sprayed with Vertimec, Salicylic A.; Potassium sulfate (K2S04); Boric acid and Ascobein to reduce the mobile stages of T. urticae and determined the yield in two successive seasons (2013 and 2014). In the first season (2013), soybean plants was fertilized with the chemical fertilizers; the results indicated that Salicylic A. with five concentrations (50, 100, 150, 250 & 300 mg/L),Potassium sulfate with two concentration (5 & 10 mg/L), Boric acid with three concentrations (0.8, 1.2 and 1.6 mgll) and Ascobein 0. 25% reduced the population of the mobile stages of T. urticae comparing with the recommended compound (Vertimec).Statistical analysis of 2013 season showed highly significant differences between the tested natural compounds and seed yield/Feddan. In the second experiment, soybean plants was fertilized with bio and chemical fertilizers; the results indicated that Salicylic A. with five concentrations, Potassium sulfate with two concentration, Boric acid with three concentrations and Ascobein reduced the population of T. urticae comparing with the recommended compound (Vertimec). Statistical analysis of 2013 season show highly significant differences between the tested natural compounds also between the seed yield/Feddan. Keywords:Soybean, Vertimec, Salicylic A.; K2S04; Boric acid and Ascobein, T. urticea, chemical fertilizers and bio fertilizers. Summary in Arabic. Two-spotted spider mite. Soybean Diseases and pests. Potassium sulphate. Boric acid Physiological effect. Azouz, H. A. Abo-Zid, Amal E. Mansoura University Journal of Plant Protection and Pathology. 2015.v.6(4) nnas u183494 http://nile.enal.sci.eg/EALE/2015/MUJPPP/615/4/649.pdf Full Text Article. 1 AR lcc 61468 61468