( Plant width : indefinite ) Aquatic perennial with leaf shaped like arrows . Floating bequeath up to 32 inches long swim on top of urine . Scapes to 3 foot marvelous bear racemes of white blossom with purple spots at the basis .
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Characteristics
Requirements
Plant Care
Fertilizing
Light
Watering
Planting
Problems
Prevention and Control : Keep gage down and remove infested plants . Dry aura seems to worsen the job , so make certain plants are on a regular basis water , especially those preferring in high spirits humidity such as tropicals , citrus , or tomatoes . Always check raw plant prior to contribute them home from the garden nerve centre or nursery . Take reward of lifelike enemies such as ladybug larvae . If a miticide is recommended by your local garden centre professional or county Cooperative Extension federal agency , study and conform to all recording label directions . Concentrate your travail on the undersurface of the farewell as that is where wanderer mites by and large live . Pest : AphidsAphids are small , sonant - bodied , easy - moving insect that take up fluids from plant . Aphidscome in many colors , ranging from green to brown to calamitous , and they may have fender . They assail a wide range of plant species cause acrobatics , distort leaves and buds . They can broadcast harmful plant virus with their pierce / sucking mouthparts . Aphids , generally , are merely a nuisance , since it takes many of them to cause serious flora damage . However aphids do produce a fresh substance call honeydew ( covet by ants ) which can lead to an unattractive black surface growth called sooty mold .
Aphids can increase apace in number and each female can produce up to 250 live nymphs in the course of a month without union . Aphids often come along when the environs alter - bound & tumble . They ’re often mass at the tips of branch feed on lush tissue . aphid are attracted to the color yellowness and will often hitch on icteric habiliment .
Prevention and Control : Keep weeds to an right-down minimum , especially around suitable plants . On edibles , wash off infect expanse of plant . ma’am bugs and lacewings will feed on aphids in the garden . There are various product - constitutional and inorganic - that can be used to control aphid . Seek the recommendation of a professional and follow all label procedures to a tee . Fungi : Leaf SpotsLeaf spots are triggered by fungus kingdom or bacteria . brownish or calamitous spots and patches may be either ragged or circular , with a water soaked or yellow - edged appearance . insect , pelting , dirty garden tools , or even masses can help its spread .
Prevention and Control : Remove infected leaves when the plant is dry . leave of absence that collect around the home of the plant life should be raked up and put away of . Avoid overhead irrigation if possible ; water should be directed at grease level . For fungal leaf fleck , use a commend fungicide according to recording label directions .
