Crown rot When salts accumulate on the surface of the soil the small amount of water left in contact with the stem can dissolve these salts in such a high concentration as to cause an injury. Once the plant is injured fungi and bacteria are allowed to enter and cause disease.
Plant collapses ...root rot ...no known cure..... resort to cutting plant off at soil level and re-rooting top ...extreme temperatureshigh and low ...Root shock when repotting, remove bottom leaves and mist several times a day ....excessive
fertilizer salts, try repotting or leaching or
dehydration mist and water more frequently back
Dry shriveled leaves high temperatures or humidity too low back
Ring spot is usually due to watering with cold water always use tepid water with african violets. or spraying the leaves and set in direct sunlight. The droplets act as a magnifying glass to intensify the sunlight and therefore burns the leaf.
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Bud Drop is a symptom of any number of things including the excess salts discussed above but most often is caused by low humidity back
Leaf or blossom drop ...over watering ...cold drafts ...cold water...very important always use tepid water with your babies ...gas sensitivity move plant away from source, check for gas leaks back
Leaves curl downwards ....too much light.... move away from source,
or temperatures too cold back
Limp glassy rot over watering, repot in porous mix. back
Old leaves turning yellow low in nitrogen .....find a fertilzer with a high first number..... PH.... too high or too low.... leach or repot in fresh soil. back
pale foliage and tall skinny stalk and stems insufficient light....
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Powdery mildew a white dusty appearance on leaves or flower stalks is caused by a fungus. Too high humidity is the usual cause of this condition and is easily cured by spraying the plants with captan or with acti-dione. I use Lysol spray misting plants from a distance. This is likely to discolor the current blossoms but is better than the consequences. back
Refusing to bloom? cause insufficient light
increase light or supplement with fluorescent light or
too much nitrogen, not enough phosphorus and potash, try bloom booster 0-10-10 back
Tight Centers can be caused by ....too much light move away from light ....pests (mites)
use pest control too much fertilizer..... leach or repot or water with solution of 1 tbsp of Dolomite lime per gallon for a few weeks then go easy on fertilizer after that. root bound... pot up in size back
Babies slow in growing check your room temperature ....they like to be on the warm side.... back
dry brown tips and/or leaf edges are usually caused by
...low humidity, misting helps or setting plant on pebbles in a water filled tray ...soil too wet or too dry ...poor air circulation ... use of fans help here but never directly on violets, they do not like draughts. or
...Salt injury from excessive fertilizer especially if high in nitrogen remove affected leaves, flush out salts with lots of warm water withhold fertilizer for a few weeks use Dolomite lime twice a month (mix= 1tbsp of lime to 1 gallon of water) back
Variegated leaves losing variegation, turning solid green? ...too much nitrogen change fertilizer with lower "first number" ...Hot weather, high temperatures change to fertilizer with less nitrogen until cooler weather comes back
White marks on leaves ...drops of water left on leaves keep plants out of direct sun until plants are dry, remove water drops off leaves after watering. ...water too cold always use tepid water with african violets. ...watering when plant is in dark always water in day time preferably morning. back
New foliage yellowing except for veins ...insufficient iron
in soil give plant a shot of iron Chelate additive. Miracid works well back
no growth, spindly, weak ...insufficient light move to brighter area, or supplement with flourescent lighting ...root bound pot up to size larger. ...plant undernourished.... fertilize
...soil pH too low (acid) raise pH by adding lime at 1tbsp to gallon of water or repot in fresh soil .... (acceptable pH = 6.5 to 7.0) back
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