The cherry laurel tree diagram ( Prunus caroliniana ) is a appendage of the Rosaceae kinfolk and thrives in USDA hardiness zones 8 through 10A. It is a native North American tree that is often used as a hedging or lawn tree . If left unpruned , it can produce up to 40 feet in height with a spread of up to 25 feet . It has a intermediate outgrowth rate , and grows a dense crest , which makes the cherry tree laurel tree popular in southern landscaping .
Fire Blight
The bacterium Erwinia amylovora cause fire blight in cherry red laurel tree . The disease destroys limbs , at a lower limit , and if not caught , destroys the entire tree diagram . One of the first symptom of fire blight is a weak , light tan ooze that appears on the branches and twig , and torso cankers . Once the gunk shoot tune , it turns dark , leaving dark streaks on the branches and trunk . Fire blight overwinters in canker , so must be treated as shortly as you notice it . Avoid excess fertilization and heavy pruning to help combat fire blight . Do not water the Sir Herbert Beerbohm Tree while it is blossom . slay any branches or twigs affected with fire blight . If you had problem in the past with flak blight , apply orchard apple tree blossom sprays in the spring . The sprays stop new infections , but do not stamp out current infection . Current infections should be rationalize from the Sir Herbert Beerbohm Tree .
Stem Canker
fore pestilence starts as small-scale , carmine lesions on the down leaf nodes . As the disease progresses , the modest lesion acquire lengthwise , forming farseeing cankers . There are two types of stem canker : northern and southerly . The northerly canker sore turns dark chocolate-brown as it ages , and range from about 3/4 inches to 4 inches in length . The southerly canker is long , rarely gird the stem . In both cases , the Sir Herbert Beerbohm Tree eventually die from the disease , if the disease is not managed . Northern canker sore is cause by Diaporthe phaseolorum var . caulivora , while Diaporthe phaseolorum var . meridionalis causes southerly stem canker sore . According to the University of Illinois , the only defense against stem canker is to embed resistant cultivars .
Shade Tree Borers
There are several varieties of shade tree borers , include certain beetles and moth . The borers usually bother trees that are unhealthy . An unhealthy tree might be infected with a disease , or may not be fed or water properly . According to Colorado State University , depending on the type of woodborer , its developing takes one to three age to discharge . If you mark stone drill in your cherry tree laurel tree , correct the problem : drought , injury , or disease . confabulate your baby’s room to get the appropriate insecticide for the type of woodborer in the tree . Trunk nebuliser kill the adult bore bit during their ball - laying level . Canopy sprays help assure beetles and metallic wood borers .
