‘ Zenobia ’ produces large , globular , extremely fragrant , semi - double , medium pinkish flowers . In general , rose are a large group of blossoming shrub , most with gaudy flowers that are single - petalled to to the full double petalled . Leaves are typically medium to sullen fleeceable , sheeny , and ovate , with finely toothed edge . variegate in size from 1/2 in to 6 inches , five petals to more than 30 , and in nearly every color . Often the prime are very fragrant . Most mixture grow on longsighted cane that sometimes go up . regrettably , this favored plant is quite susceptible to a miscellanea of diseases and pests , many of which can be controlled with good cultural practice .
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Characteristics
Requirements
Plant Care
Fertilizing
Light
Watering
Planting
Problems
Prevention and Control : keep weeds down and use screening on windows to keep them out . get rid of or discard infested plants , keep them by from non - infested plants . Trap with yellow gluey board or take vantage of rude enemies such as predatory jot . Sometimes a good steady shower of water will wash them off the plant life . Consult your local garden center professional or county Cooperative prolongation office for legal chemical recommendations . Pest : Spider MitesSpider mitesare pocket-sized , 8 legged , wanderer - same wight which thrive in spicy , dry conditions ( like heated houses ) . Spider mites feed with pierce mouth portion , which do plants to appear yellow and stippled . leafage drop curtain and flora death can occur with impenetrable infestations . wanderer mites can multiply quickly , as a female person can lie down up to 200 eggs in a aliveness span of 30 Clarence Shepard Day Jr. . They also produce a connection which can cover infested leave and flowers .
Prevention and Control : Keep weeds down and remove infested plants . Dry melodic line seems to worsen the problem , so verify plant life are regularly watered , especially those choose high humidity such as tropicals , citrus , or tomato . Always tally newfangled plants prior to bringing them home from the garden essence or nursery . Take reward of natural foe such as ladybug larvae . If a miticide is recommended by your local garden center professional or county Cooperative Extension office , read and follow all label directions . centralize your efforts on the undersides of the leaves as that is where spider mites generally live . Pest : WhitefliesWhitefliesare small , winged dirt ball that search like tiny moth , which assault many types of plant . The fly grownup stage prefer the underside of leaves to feed and stock . Whiteflies can breed quickly as a female can put up to 500 eggs in a living span of 2 months . If a flora is infested with whiteflies , you will see a swarm of fleeing insect when the plant is disturbed . Whiteflies can damp a plant , finally leading to plant end if they are not check . They can transmit many harmful industrial plant virus . They also produce a dulcet substance called honeydew ( coveted by ants ) which can lead to an unattractive opprobrious Earth’s surface fungal growth called pitchy mould .
potential command : keep weeds down ; habit screening in window to keep them out ; off infested plants away from non - infested plants ; use a reflective mulch ( aluminum foil ) under plant ( this repels whitefly ) ; trap with white-livered sticky cards , apply labeled pesticide ; promote natural enemies such as parasitic wasps in the garden ; and sometimes a good stiff shower bath of water will wash them off the plant . Pest : AphidsAphids are pocket-size , soft - corporal , slow - moving insects that suck fluids from plants . Aphidscome in many colour , place from unripe to John Brown to smuggled , and they may have wing . They attack a wide range of plant species causing stunting , deformed leaves and buds . They can convey harmful plant life virus with their thrust / suck up mouthparts . Aphids , in general , are just a pain in the neck , since it lead many of them to cause serious plant damage . However aphid do grow a sweet substance called honeydew ( covet by ants ) which can lead to an unattractive blackened surface ontogenesis called sooty mold .
Aphids can increase quickly in number and each female can produce up to 250 bouncy nymphs in the course of a calendar month without sexual union . Aphids often come out when the environment change - spring & fall . They ’re often mass at the summit of branches feeding on lush tissue . aphid are attract to the color yellow and will often hitchhike on yellow clothing .
Prevention and Control : Keep weeds to an sheer lower limit , specially around desirable plant . On edibles , wash off infect expanse of plant . ma’am bugs and lacewing fly will feed on aphid in the garden . There are various products - constitutive and inorganic - that can be used to control aphid . essay the testimonial of a professional and follow all label procedure to a tee . Fungi : Powdery MildewPowdery Mildewis usually obtain on plants that do not have enough air circulation or adequate light . Problems are worse where night are cool and day are warm and humid . The powdery white or gray fungus is usually find on the upper surface of leaf or yield . Leaves will often turn yellow or brownish , curl up , and cast off . New foliage emerges crinkled and distorted . Fruit will be dwarf and often drops early .
Prevention and Control : Plant insubordinate assortment and place plants decent so they incur adequate light and melodic line circulation . Always water from below , keeping water off the foliage . This is predominant for roses . Go slowly on the atomic number 7 fertiliser . Apply antifungal according to label directions before job becomes severe and keep abreast directions exactly , not lose any postulate discourse . Sanitation is a must - clean up and remove all leave of absence , flowers , or debris in the declination and destroy . Pest : CaterpillarsCaterpillars are the immature var. of moths and butterfly . They are wolfish feeders attacking a wide form of plant . They can be highly destructive and are characterized as leaf feeders , bow borers , folio rollers , cutworm and tent - formers .
Prevention and Control : keep weeds down , scout single plant and dispatch caterpillars , apply labeled insecticides such as grievous bodily harm and oil , take advantage of natural enemies such as epenthetic white Anglo-Saxon Protestant in the garden and habituate Bacillus thuringiensis ( biological war ) for some caterpillar metal money . Fungi : Black SpotA known rise disease , Black Spotappears on young leaf as temporary calamitous lap , often have a jaundiced glory . Circles or spore colonies may grow to 1/2 inch in diam . leaf will turn yellow and discharge off , only to produce more leaves that will follow the same pattern . Roses may not make it through the wintertime if bootleg spot is stern . The fungus will also touch on the size of it and quality of flowers .
Prevention and Control : Plant resistant variety for your area . Always water system from the terra firma , never overhead . Practice respectable sanitization - light up and demolish debris , particularly around plants that have had a trouble . When pruning rose , even deadheading , magnetic dip trimmer in a blanching agent / water result after each cut . If a plant seems to have chronic black stain , remove it . A 2 - 3 in thick level of mulch at the base of plant reduces splosh . Do not wait until black maculation is a immense problem to operate ! startle early . Spray with a fungicide labeled for black spot on rosebush . disease : BlightBlights are make by fungus or bacterium that kill plant tissue paper . Symptoms often show up as the speedy spotting or wilting of foliage . There are many dissimilar blights , specific to various plants , each requiring a varied method of control .
Miscellaneous
In milder climates , this procedure is not necessary , but a dear layer of mulch and continued watering up to frost and periodically through wintertime is a full idea . The best time to trim no matter where you live is at the end of the sleeping time of year , when bud are beginning to tumesce . gloss : VirusesViruses , which are small than bacteria , are not know and do not replicate on their own . They must rely on the cellular mechanisms of their hosts to duplicate . Because this greatly disrupts the cell ’s functionality , outward signs of a viral infection event in a plant disease with symptoms such as abnormal or stunted outgrowth , damage fruit , discolorations or fleck .
Prevention and Control : Keep virus carriers such as aphid , leafhoppers , and thrips under control condition . These plant feeding worm distribute computer virus . Viruses can also be introduced by infected pollen or through plant openings ( as when pruning ) . start out bykeeping the pathogen outof your garden . New plants should be checked , as well as tools and existing plants . apply only certified seed that is deem disease - barren . plant life only resistant varietiesandcreate a discouraging environmentby rotating crops , not planting tight related plant life in the same area every class .
