The smoking bush orsmoke treeis in the Anacardiaceae family , and two smorgasbord are act : the American smoking tree ( Cotinus obovatus ) and the flaming smoke tree ( Cotinus coggygria ) . Both miscellanea are long-lasting plants . They can withstand ironic stain and gamey winds , and can even adapt and thrive in rock - filled footing . Despite this lastingness , both varieties are susceptible to disease .

Variety Distinction

The American variety accomplish an average superlative of 25 foot . , it has green to blue - unripened leave in the decline season , and xanthous , yellow - green and orange in the spring . It blooms between May and June . The fire Mary Jane Sir Herbert Beerbohm Tree can reach a height of 10 ft . and has purple to dark - purple parting throughout the season .

Problem Identification

Both variety can undertake verticillium wilt disease , but only the fire smoke tree contracts fusarium wilting . Wilting can be detected by sight and cutaneous senses – a wilted leafage will curl into itself , or droop down and not wield a straight angle , and , when bent , it will not spring back to its original configuration . folio spots , sometimes called leaf rust , can affect both assortment . Spots or rust show as discoloration on leaf elevation . The flame smoke tree can also contract a powdery mildew emergence on its leaf tops . Leaf drop , the falling of leaves that appear healthy , is also common with both varieties .

Causes

Both type of wilting are cause by fungous growth , which initially occurs and infects the flora during cold-blooded and damp weather , and then gains long suit and spreads when the weather warms . Leaf spots and powdery mildew are do by fungal growth . Michigan State ’s Ornamental Plant extension list blackleg , another type of fungus , as a likely causal agency of foliage drop . Leaf drop can also be because of over or underwatering .

Prevention and Treatment

The type of fungus that produces wilting , spot and foliage fall grow in dark , damp and poorly ventilated area . The first beat of prevention and retrieval is to place the plant in an undetermined , well - lit room . Fungicides can be used as well . Also , consult a local nursery as to what the proper watering time would be , yield the climate of the region where you live .

Considerations

When a tree ’s leaves become discolored , fall off , or wilt it could be remember that increase the amount of fertilization could bring vitality back to the industrial plant . For the sess tree miscellany , however , overfertilization can worsen the effects of whatever disease is impress the tree diagram . Of the two varieties , the American grass tree is susceptible to less diseases . When any variety has been infected with a fungus , all fallen leaf should be destroyed . When the fire smoke tree has been infected with powdery mold , in addition to destroying all fall leaves , the surrounding area should be cleaned of all fungus debris ( the powdery mold material ) , and infected leave of absence that remain on the tree should be wipe with a cloth .

References

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