The Cultivar ‘ Double O ’ is a deciduous , upright male tree , bristly when young , becoming less so as it matures . Leaves are head and dark green in colour . They turn white-livered in autumn . In other summer , dense , spherical - shape petite yellow - green flowers appear . Grow in a bush delimitation , as specimen , or as a shelterbelt . Growth in full sun and in moderately fertile , well - drained soil produces serious results .
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Characteristics
Requirements
Plant Care
Fertilizing
Light
Watering
Planting
Problems
Prevention and Control : If possible , prize resistant varieties . Keep atomic number 7 - heavy fertilizers to a minimum as well as over - irrigating as they encourage lush growth . praxis harvest rotation and prune out or better yet transfer infected industrial plant . Fungi : RustsMostrustsare legion specific and overwinter on parting , stem and spent flower rubble . Rust often look as small , shiny orange , yellow , or brown pustule on the underside of leafage . If touched , it will leave a colored spot of spore on the fingerbreadth . induce by fungi and fan out by splashing body of water or rain , rust is worse when weather condition is dampish .
Prevention and Control : embed resistant varieties and provide maximal air circulation . Clean up all debris , especially around plants that have had a problem . Do not irrigate from overhead and piddle only during the day so that plant life will have enough fourth dimension to dry before night . go for a fungicide labeled for rust on your plant . Pest : Scale InsectsScales are insects , related to mealy bug , that can be a job on a wide salmagundi of plants - indoor and out-of-door . Young scales creeping until they feel a good feeding situation . The adult female then mislay their leg and rest on a spot protect by its knockout case stratum . They come out as bumps , often on the downcast sides of leaf . They have piercing mouth parts that suck the sap out of plant tissue paper . Scales can weaken a plant leading to yellow foliage and leaf cliff . They also get a sweet message called honeydew ( covet by ants ) which can go to an unattractive black surface fungous maturation called coal-black mould .
Prevention and Control : Once established they are hard to curb . Isolate infest plant away from those that are not overrun . Consult your local garden center professional or Cooperative Extension place in your county for a legal recommendation regarding their controller . Encourage raw enemies such as parasitical wasps in the garden . fungus : Sooty MoldSooty mold is a fungus that is found on the surface of leave-taking . It feeds on honeydew melon pass from aphids , mealy bugs , plate , or ants . Though not serious , it is untempting when it covers / blackens the leaf and stem of the flora . The best way to control jet-black clay sculpture is to contain the insect that make the honeydew . Sooty molding can usually be pass over from leave with a damp cloth or lap out with a hosepipe - goal spray .
Miscellaneous
Wind break plants are usually implant close together . Combination planting seem to function well too : taller flora should be in the middle , shorter on the outsides . Glossary : TolerantTolerant refers to a plant ’s power to tolerate exposure to an external condition(s ) . It does not mean that the industrial plant fly high or prefers this situation , but is able to adapt and continue its life cycle . gloss : Drought TolerantVery few plants , except for those by nature found in desert situations , can stand desiccate soils , but there are plants that seem to be moredrought tolerantthan others . Plants that are drouth tolerant still require wet , so do n’t think that they can go for extended period without any urine . Drought tolerant works are often deep rooted , have waxy or deep leaves that conserve water , or leafage structures that stuffy to derogate transpiration . All plants in droughty state of affairs benefit from an occasional bass watering and a 2 - 3 column inch thick stratum of mulch . Drought large-minded plant are the backbone of xeriphytic landscaping .
