This article is about an area of Mexico City, for other uses read Polanco (disambiguation). Polanco is an upscale area in the Miguel Hidalgo borough of Mexico City, located north of Chapultepec Park and consisting of five official neighborhoods ( colonias ).olanco is served by the Polanco and Auditorio stations of the Mexico City metro (subway). Peseros (minibuses), city buses and trolleybuses ply numerous streets in Polanco continuing to and from other parts of the city.
Beans may exhibit seed rot, damping-off, and root rot symptoms due to many other causes. Sclerotinia sclerotiorum which causes Sclerotinia wilt or white mold also causes a stem rot under certain conditions. The disease frequently occurs after a period of warm, humid weather.
Root Rot. Roots of vegetable plants may decline and die from a variety of causes. Unfavorable environments that result in either waterlogged or drought conditions are common causes of poor root health on vegetable plants.There are also fungi in the soils that have the ability to infect roots and cause root rot.If major roots or the crown are affected by root rots or other problems, the entire plant can wilt and die rapidly.any of the root rot fungi, in addition to attacking small roots, also invade older roots and stem tissue. On soft-stemmed plants, the symptoms are visible on the surface of the stem, extending various distances up the stem from the soil line.