‘ Tricolore De Flandre ’ is an Old Gallica rose which proudces double , fragrant , pale pink flowers , striped with purple . blossom only once . In general , roses are a big group of flowering shrubs , most with showy flowers that are single - petalled to fully double petalled . Leaves are typically average to dark green , shining , and ovate , with finely toothed edges . Vary in size of it from 1/2 in to 6 inch , five petals to more than 30 , and in nearly every colour . Often the flowers are very fragrant . Most varieties grow on long cane that sometimes climb . Unfortunately , this favorite plant is quite susceptible to a miscellany of diseases and plague , many of which can be control with unspoilt cultural pattern .
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Characteristics
Requirements
Plant Care
Fertilizing
Light
Watering
Planting
Problems
Prevention and Control : keep weeds down and use sort on window to keep them out . Remove or discard infested works , keep them away from non - infested plants . Trap with yellow viscid cards or take advantage of lifelike enemies such as predatory hint . Sometimes a good steady cascade of weewee will wash them off the industrial plant . Consult your local garden sum professional or county conjunctive extension office for effectual chemic recommendations . Pest : Spider MitesSpider mitesare small , 8 legged , spider - similar beast which thrive in hot , dry condition ( like het house ) . Spider jot feed with piercing lip parts , which cause plant to appear jaundiced and stippled . foliage drop cloth and plant dying can take place with heavy infestations . Spider mites can reproduce apace , as a female can lay up to 200 bollock in a life span of 30 years . They also make a web which can cover infested leaves and flowers .
Prevention and Control : Keep grass down and remove infested plant . ironic airwave seems to aggravate the problem , so make certain plants are regularly watered , particularly those preferring high humidity such as tropicals , citrus fruit , or tomatoes . Always check new plants prior to bringing them home from the garden heart or greenhouse . Take advantage of natural enemy such as ladybug larvae . If a miticide is advocate by your local garden center professional or county Cooperative Extension office , translate and comply all label directions . reduce your exertion on the bottom of the leaf as that is where spider jot generally live . Pest : WhitefliesWhitefliesare small , winged insects that look like lilliputian moths , which round many types of plants . The fly grownup phase prefers the underside of leaves to fee and breed . Whiteflies can multiply quickly as a female person can pose up to 500 egg in a life span of 2 months . If a plant is infested with whitefly , you will see a cloud of fleeing insects when the plant is vex . whitefly can weaken a plant , eventually leading to imbed death if they are not chequer . They can transmit many harmful plant viruses . They also grow a sweet substance predict honeydew ( covet by ants ) which can lead to an untempting black open fungous growth called jet-black mold .
potential controls : keep weeds down ; use screening in window to keep them out ; remove infested works aside from non - infested plants ; use a reflective mulch ( aluminum foil ) under industrial plant ( this repels whiteflies ) ; trap with yellow sticky plug-in , apply labeled pesticides ; encourage natural enemies such as parasitical wasps in the garden ; and sometimes a good stiff shower of water will wash them off the flora . Pest : AphidsAphids are small , soft - corporal , tardily - propel insects that go down on fluids from plants . Aphidscome in many colour , ranging from unripe to brown to black , and they may have wings . They attack a wide range of plant mintage causing aerobatics , deform leaves and buds . They can transmit harmful plant virus with their thrust / take in mouthpart . Aphids , generally , are merely a nuisance , since it takes many of them to do serious plant damage . However aphid do produce a sugared center called honeydew ( coveted by pismire ) which can lead to an untempting black aerofoil growth call coal-black mould .
Aphids can increase quickly in numbers racket and each female can produce up to 250 alive nymphs in the course of a month without pairing . Aphids often appear when the environment changes - spring & fall . They ’re often massed at the tips of arm feeding on succulent tissue . Aphids are attracted to the color yellowness and will often thumb on yellow clothing .
Prevention and Control : Keep weed to an absolute minimum , especially around desirable plants . On comestible , wash off infected area of plant . noblewoman germ and lacewings will feed on aphid in the garden . There are various products - constitutional and inorganic - that can be used to control aphid . try the good word of a professional and follow all recording label procedure to a tee . Fungi : Powdery MildewPowdery Mildewis usually find on plants that do not have enough air circulation or adequate luminosity . job are worse where Nox are coolheaded and days are warm and humid . The powdery livid or gray-haired fungus is unremarkably find on the upper surface of leaves or fruit . foliage will often wrick white-livered or browned , curl up , and drop off . young foliation go forth crease and malformed . Fruit will be dwarfed and often drop early .
Prevention and Control : Plant resistant varieties and space plant properly so they receive enough light and aviation circulation . Always water from below , keeping piss off the foliage . This is predominant for roses . Go tardily on the N plant food . Apply fungicides according to recording label directions before job becomes austere and follow directions exactly , not missing any required treatments . Sanitation is a must - clean up and remove all leaf , flower , or debris in the fall and demolish . Pest : CaterpillarsCaterpillars are the immature cast of moth and butterfly . They are voracious feeders attacking a panoptic variety of plants . They can be extremely destructive and are characterise as leaf feeder , stem borer , leaf rollers , cutworm and tent - former .
Prevention and Control : keep weed down , sentry individual plant life and take out caterpillars , apply labeled insecticides such as soaps and vegetable oil , take advantage of natural enemies such as bloodsucking wasps in the garden and utilise Bacillus thuringiensis ( biologic war ) for some caterpillar species . fungus kingdom : Black SpotA known rose disease , Black Spotappears on young foliage as irregular black circle , often deliver a yellow aura . Circles or spore colony may grow to 1/2 inch in diam . leave will turn yellow and drop off , only to farm more leaves that will abide by the same pattern . rosiness may not make it through the winter if black point is severe . The fungus will also touch the sizing and calibre of flowers .
Prevention and Control : Plant repellent motley for your region . Always water from the primer , never overhead . Practice upright sanitization - clean up and destroy debris , specially around plants that have had a job . When dress roses , even deadheading , dip pruner in a bleach / H2O solution after each cut . If a plant life seems to have inveterate black spot , slay it . A 2 - 3 column inch thick layer of mulch at the understructure of plant reduce splashing . Do not look until smuggled topographic point is a huge trouble to command ! Start early . Spray with a antifungal agent labeled for black spot on roses . Diseases : BlightBlights are do by fungi or bacterium that bolt down plant tissue . symptom often show up as the speedy espial or wilting of leafage . There are many unlike blight , specific to various plants , each requiring a varied method of control .
Miscellaneous
In milder climates , this procedure is not necessary , but a good layer of mulch and continued watering up to ice and sporadically through winter is a honorable theme . The best time to prune no matter where you live is at the end of the hibernating season , when buds are beginning to swell . Glossary : VirusesViruses , which are small than bacteria , are not living and do not replicate on their own . They must bank on the cellular mechanisms of their host to duplicate . Because this greatly break up the cellular phone ’s functionality , outward sign of a viral infection result in a plant disease with symptom such as abnormal or stunted growth , damaged yield , discolouration or spots .
Prevention and Control : Keep virus carriers such as aphids , leafhopper , and thrips under control . These works eating insects diffuse viruses . virus can also be introduced by septic pollen or through industrial plant openings ( as when dress ) . Begin bykeeping the pathogen outof your garden . newfangled plants should be checked , as well as pecker and live plants . Use only attest source that is deemed disease - free . Plant only resistant varietiesandcreate a discouraging environmentby rotating crop , not planting closely colligate plants in the same area every year .
