The holy person winged begonia is a favourite among flower gardeners and landscape architect . An eye - catcher , this begonia gets its name from its unique folio that resemble outstretched angel offstage . The holy man fly begonia is a tropic flora that needs high humidness , fair to middling melody circulation , full sun and lots of water to thrive . When these needs are not fit , the flora becomes more susceptible to disease .

Powdery Mildew

begonia afflict with this fungous disease first develop circular berth of what look like blanched powder . As the fungus multiplies , the spots grow large until the plant looks like it is covered with the powdery dust . Control powdery mildew by rationalize the affected foliage as soon as possible . Even a mild subject of powdery mildew can offend an holy man winged begonia . Once the affected foliage and any leafage litter has been removed , spray the plant life with a fungicide order for utilisation on powdery mould .

Botrytis

Botrytis is a fungous disease that causes splotches of the saint fly begonia to become soggy and brown . If result untreated , these torpid brownish domain will spread and eventually vote down the begonia . Botrytis is a sign that you involve to prune the Department of the Interior of your plant life to better air circulation and stop overhead lacrimation . To control the spread of the disease , prune the brown area out of the industrial plant or cut off the affected cane , then sterilize the cut with methylated spirits . Finally , off any drop leaves or flowers – they may harbor fungal spores .

Bacterial Leaf Spot

Bacterial leaf spotlight causes low , pimple - like maculation to develop on the angle wing begonia ’s leaves . stuffy review under a smart light will reveal that the zit come out transparent . As the disease progresses , the small floater will spread and run together , and a slimy ooze will emanate from any cuts or wounds in the works . Mild infections can be check by prune infected tissue , but heavy infected flora should be deracinate and thrown away .

Stem Rot

Stem bunkum is induce by a fungus that enters the treetop of the begonia through a wound in the plant life . Once established inside the industrial plant tissue , it eats away at it , making it soft and ineffective to support the weight of the plant . The bow will eventually crumble . There is no cure for stem hogwash . septic plants should be discarded as soon as potential to stop the spreadhead of the disease .

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