The Canary Island date palm , Phoenix canariensis , can develop 30 to 60 feet in height , with frond that can get through 18 feet in length . This is the palm tree with the rhomb - patterned bark that you will see grow in Las Vegas , California , Florida , Arizona and along the Gulf of Mexico . Although the tree thrives in a Mediterranean climate , it is open to disease in moist , humid environment .

Fusarium Wilt

Fusarium wilting is responsible for the end of many Canary Island date palm and is , in fact , one of the most destructive of all palm diseases in the state of California , according to James Downer of the University of California Cooperative Extension system . There is no therapeutic for fusarium wilt , which is a fungous disease . This disease spreads primarily through pruning equipment . If equipment is not decently cleaned and sterilized after each use on an infected tree , the fungus will be chop-chop transmitted to subsequently pruned trees . According to scientist at the University of Florida , the disease intervene with the xylem , or water conductivity system , of the tree , leave in death . Symptoms of the disease start with the dying off of the lower foliage of the plant , which turn yellow and then brown . Interestingly , when the disease first becomes evident , only one - one-half of the leaf appears to die , but eventually the total leaf will be demolish .

Bud Rot

Although there are several pathogens that can cause bud bunk , Phytophthora palmivora is generally the perpetrator , harmonize to researcher at the University of Florida , who conceive that P. palmivora is circulate through the land , improperly sanitized horticulture tools and tempest pee , and then transmitted to the Canary Island date laurel wreath through combat injury in its bark . regrettably , by the meter symptoms manifest , it is too late to salvage the tree . These symptom include buds that lessen over , have a foul olfactory perception , or rot at the base . If you mistrust that your Canary Island date thenar may have bud rot , it is important to take an infected portion to your county concerted file name extension broker for a diagnosing and didactics on how to keep the disease from spreading to other plant .

Trunk Rot

Trunk rot is another fungal disease , this one make by Thielaviopsis paradoxa , which infects the medallion through an open wound in its bark . T. paradoxa is convey by spores on the wind or in piss . research worker at the University of Florida take that trunk rot is symptomized by the collapse of the luggage compartment of a apparently healthy palm tree , or the canopy falling off the tree diagram . Some palms may seem to be bleeding at the wound site . Cutting out the injure area may help oneself ease this disease . A fungicide labeled for Thielaviopsis diseases should be applied after remotion of the wounded area . Clean all equipment used on infected trees by soaking them in three parts of body of water combine with one part household bleach .

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