Hibiscus is an ornamental bush that grow to heights of 8 animal foot and spreads to a breadth of 4 feet . This showy shrub produces an abundance of 4 - inch bloom in shades of pinkish , cherry , jaundiced , reddish blue and blue . Its extended blooming fourth dimension endure from July to September , adding a splash of people of colour to any landscape .
Types
Hibiscus is affected by a host of chew or sucking insect that damage or destroy radical and leaves and may eventually kill the entire plant life .
Identification
Phytoflora , a soilborne pathogen , causes ascendent rotting and crown moulder in herbaceous and woody plant and bush , do them to wilt and die when warm weather approaches . Leaves may turn yellow or red - purple . The diadem may show mansion of darken and may ooze dark sap .
Root rot is make by the Fusarium oxysporum and Verticillium fungi that breed in the land and interfere with the plant ’s ability to uptake water system and nutrient . Although beginning do not rot until advanced stage , leaves on the hibiscus wilt even though there is adequate water supply . finally , root hogwash kills the plant if not do by readily .
lead spot canker may kill selected branches or may spread to the entire plant . Small ruby - orange fruit may seem along the bark of the stalk and leaves . Individual leaves may show brown spots that finally vote down the leaves .
Collar decomposition turns the orbit where the roots join the bow brownness and slimy and is often the final result of nerveless dampish winters when the plant does not have tolerable drainage to keep the beleaguer soil from becoming soggy .
Cause
Hibiscus disease may be transmitted from other plants , but is most often a result of improper flora attention . A want of aid to keeping the domain free of moldy leaves and other works detritus , overwatering , and overcrowding contribute to the spread of disease and make the perfect environment for insect pestis .
Effects
impart untreated , infective diseases and insect pests not only detract from the attractiveness of your hibiscus plant , but may belt down the plant entirely .
Prevention
Prevention of diseases in hibiscus depends on right plant care . cleanse any dead or dying plant debris away from the sphere , provide adequate aeration by trimming overgrown plant and permit adequate elbow room for growth and debar overwatering maintains healthy plants , which reduces susceptibility to disease or dirt ball infestations .
Collar rot respond to painting the septic area with Bordeaux paste and treat the soil with a unattackable garlic or chamomile tea . etymon putrefaction can be treated with a solution of 1 pt . of house bleach to 2 qt . of water . Saturate the soil with the answer to bolt down fungi . program of antimycotic agent to the soil at the time of planting reduce the hazard of crown rot and etymon rot , but right works sustentation is the key fruit to preventing disease .
