الفهرس 
Studies on Root Rots of Pothos Plants in Egypt and Their 143 Management
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Abstract
Pothos plants are threatened by several fungi, but R. solani and S. rolfsii were the most aggressive. Growth of both fungi is stimulated by pothos root exudates at 10 days of age. Examining the in vitro antifungal activity of eucalyptus, rue, and thyme oils at 0, 2.5, 5, and 7% against both fungi, all oils significantly reduced the radial growth of both pathogens, while increasing their concentrations enhanced their activity. Rue oil was the most effective in this regard. Furthermore, nanoemulsion oils were more effective than their emulation phase, where thyme and clove oil nanoemulsions caused complete inhibition of radial growth of both pathogens at 3000 ppm. On the other hand, the organic acids tested gave promising results against both fungi, but salicylic acid was superior. When comparing the bacterial and fungal isolates obtained from the pothos rhizosphere to the commercial bioproducts namely, Bio-Arc, Bio-Cure-F, it was found that Bio-Cure-F overtook all treatments in controlling R. solani root rot but significantly paralleled T. harzianum in controlling S. rolfsii infections.When comparing B. subtilis, T. harzianum, Bio Cure-F, Rhizobacterin, rue oil, Salicylic Acid and thyme oil nanoemulsion, Thyme Oil nanoemulsion was the most effective with 75% protection against Rhizoctonia root rot, while rue oil and salicylic acid were the most effective with 66.67% protection against Sclerotium Southern Blight. In addition, the 3000ppm thyme oil nanoemulsion was most efficient in improving the growth of pothos roots exposed to the fungi tested