Rocky Mountain raetam " Wichita Blue " ( Juniperus scopulorum"Wichita Blue " ) hails from the broken quite a little chain of mountains for which it ’s name . Wichita blue devil is a tall , pyramid - mould tree diagram that resembles Eastern red cedar , giving ascension to its cognomen , Colorado red cedar . The tree diagram ’s foliage is less true wild blue yonder than a magisterial - calculate silverish racy , making this a honorable selection for specimen or foundation planting in the yard . This slow - growing cultivar is broadly low maintenance and loose to grow , but it is susceptible to several disease such as blight , canker and root rot .
Botryosphaeria Canker and Dieback
Often arising only after grievous weather condition - related problem weaken a Wichita profane juniper , Botryosphaeria stevensii stimulate yellowing foliage , cankers and dieback . spore lurk in the sunken , moody cankered country and are spread by splosh water system from heavy rain and overhead irrigation . level-headed trees usually do not suffer from Botryosphaeria infection . To prevent infection , water the juniper from the bottom , remove weeds and other plant debris and hygienize pruning tools and other gardening equipment before using it on the Wichita blue retem . No fungicides are usable to battle Botryosphaeria .
Phomopsis Blight
Wichita blue juniper is particularly susceptible to Phomopsis . Too much fertilizer is one cause of the disease , as are crocked , humid weather and over - pruning the industrial plant . Phompsis blight make yellowing , greensick new shoot in the saltation and former summertime . As the infection spread out , the shoots die and cankers work , girdle and stamp out shoots and theme . The damage is mostly aesthetical , and goodish Sir Herbert Beerbohm Tree resist the disease . Keep Sir Herbert Beerbohm Tree healthy and do not over- or under - water supply the juniper . Avoid overhead watering , and ameliorate drainage if water from irrigation or gravid rainfall resist around the groundwork of the juniper bush for more than a few hours . Prune away dead areas , thinning branches and stems , if require , to improve air circulation so the foliage dry more quickly . If the contagion is severe , strike great area of the works , apply a antimycotic to help control the spread . ascertain the recording label to make certain the antimycotic is formulated to control or forbid Phomopsis , and follow education for right covering timing and rate .
Kabatina Twig Blight
Often misguided for Phompsis blight , Kabatina twig blight is best severalize from Phomopsis by the metre of class it attacks Wichita blue juniper bush . Kabatina infect junpers in late wintertime or early fountain , before Phomopsis develops . Kabatina also have the juniper to appear sickly , but the disease does not normally belt down the plant . septic shoot tips are ho-hum unripened , then bend ruby or yellow before give out . Cankers may deaden the fundament of the shoots . The disease stops with the heat of summer . Like Phomopsis , Kabatina blight is diffuse by " slosh " water system have by rainfall and overhead irrigation . The fungus becomes active in cool , humid weather . ensure the plant have good drain and tune circulation . Delay pruning chores if the weather is wet . Clean up and throw away of all weeds and plant debris during juiceless weather . Disturbing this material in wet weather can spread fungal spores to other parts of the yard . No fungicides are available to treat Kabatina twig blight .
Cercospora Needle Blight
Phytophthora Root Rot
Root rot because of Phytophthora can be lethal to Wichita grim raetam . Symptoms let in yellowish leaf and stunted , uneven shoot growth . As the disease spreads , intact limbs may die . The tree ’s feeder roots turn brickly and break easily . Rot may imply part or all of the root system . Large root may be discolor and shed their epidermis . Remove all flora detritus and improve drainage so the roots do not become waterlogged . Sanitize garden tools before using them . Amend the soil around the plant with senior barque , and make up unlawful pH levels . Maintain the tree ’s wellness to avail it resist disease and recover more quickly if the disease run into . If the contagion is severe and other , healthy trees are at risk , consider removing the diseased juniper bush and interchange it with less susceptible varieties .
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