Advisory about methemoglobinemia with the use of benzocaine sprays durÂ­ ing medical procedures. Since then, FDA has received reports of 72 new cases of methemoglobinemia associated with the use of benzocaine sprays, including 3 resulting in death, bringing the total to 319 cases as of March 16, 2011. Of the 319 cases, 7 were deaths, 32 cases were categorized as life threatening, and 216 were categorized as serious. A review of the 319 cases indicated that the development of methemoglobinÂ­ emia after treatment with benzocaine sprays may not be related to the amount applied. In many cases, methemoglobinÂ­ emia was reported following the adminÂ­ istration of a single benzocaine spray. In other cases, methemoglobinemia resulted after excessive amounts were applied.
Alternaria Brown Spot. Alternaria brown spot affects Dancy and Murcott tangerines, among other varieties of tangerine and citrus. The disease causes brown spots and yellow discoloring of tangerine leaves; leaves can eventually fall off the tree.Branches and twigs may die back at the tips, and fruit can develop brown blemishes on its skin.lternaria Brown Spot. Alternaria brown spot affects Dancy and Murcott tangerines, among other varieties of tangerine and citrus. The disease causes brown spots and yellow discoloring of tangerine leaves; leaves can eventually fall off the tree.
Types. Most diseases of hibiscus plants are caused by fungi. Hibiscus plants are susceptible to leaf spots. Botrytis blight also affects the leaves, as well as flowers and stems.Cankers grow on twigs and branches of the plants, while mushroom root rot causes the roots to decay and die.ypes. Most diseases of hibiscus plants are caused by fungi. Hibiscus plants are susceptible to leaf spots. Botrytis blight also affects the leaves, as well as flowers and stems.