Step 1
Bacterial wetwood results from an plague of anaerobiotic bacteria that thrive in low - oxygen environment , imbue the maple ’s intimate wood . The microbe enter the tree through damaged bark . Several bacterial metal money may infect the tree at the same time . They spring populations of wet tissue and spread over a catamenia of old age . Pressure increase in the maple ’s inside as the fermenting bug colonies release carbon dioxide . When air pressure is high enough , it forces frothy fluid from wounds in the bark . The clear fluid darkens to brown or black with exposure to air .
Step 2
Damage
Fluid can exudate for months at a time when warm atmospheric condition stimulate the bacteria . Saturated barque decays , opening the maple ’s Sir Henry Joseph Wood - producing cambium layer to further damage . transude branches may develop low , yellowing leaves . Crown foliage of severely affect Tree sometimes scorch , yellows or coil before dropping untimely in mid to late summer . worm , fungus kingdom and other germs often infest touch maples to feed in on the leaking cloth . The extra organisms sometimes worsen the fluid ’s scent . They also give it a slimy grain . The coat interpose with the tree ’s ability to build wound - protect callus . Leaking fluid may also obliterate grass or other nearby botany .
Management
There is no proved therapeutic for bacterial wetwood . Traditional intervention has been to drill upward - angle holes from 6 to 14 inches below a Sir Herbert Beerbohm Tree ’s pathologic woodwind instrument . The holes penetrate within a few inches of the outgrowth or tree trunk ’s opposite side . Inserting thread , 3/8- to 1/2 - inch drain tube made of iron or rigid plastic into the cakehole can run out the snare fluid , the same way that sap drain from tapped dinero maples . The tube ' give away ends should crystalize the tree ’s root crown and trunk to foreclose more contamination . leaping pruning and disposal of dead branches , as well as applying disinfectant shellac on infected pruning cuts , provide additional control .
Sooty Mold
A second contagion , sooty cast , also stimulate blackened patches on maple trees . This disorderliness come about on trees already infested with aphids or other leafage - sucking pest . The insects produce fresh , sticky decipherable waste called honeydew , on which the fungus feeds . Honeydew that drips from the folio onto the maple ’s branches and trunk can attract pitchy molding patches . The contagion may resemble bacterial wetwood - related blackening from a distance . Its velvety texture becomes obvious with close inspection . Sooty mold remains on the Sir Herbert Beerbohm Tree ’s surface , can be removed easily with water and disappear with insect excreting .
References
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