Diseases of houseplants contribute to the loss of a nice appearance and weakening the growth of our flowers. Often the symptoms of pot plant diseases are discoloration or spots on the leaves, falling flowers or wilting. Their appearance is most often the result of improper care of potted plants. Here's how to identify the most common potted flower diseases and help ailing plants.
Why do potted plants get sick?
It is not uncommon for a plant that has delighted our eyes with its beauty to suddenly wither, turn yellow, lose flowers.Sometimes these symptoms indicate that it is attacked by pests of houseplants. Often, the cause is errors resulting from improper care, which in turn leads to the weakening of plants, loss of their immunity and falling intodiseases of potted plants , mainly fungal, sometimes also viral.The most common mistakes in growing potted flowers:
- over or under watering,
- using the wrong fertilizer, often in too high doses,
- too high or too low temperature and humidity.
" Plant reaction is usually browning, yellowing leaves, shedding flowers, stunted growth. Careful observation makes it possible to identify the harmful factor, and the knowledge of the plant&39;s requirements as to its position and care allows for its elimination and providing our pet with optimal development conditions.Usually, it is enough to change the conditions in which the plant resides to bring its condition back to normal, but sometimes it needs a more thorough, longer treatment with plant protection products. "
The most common diseases of potted plants
Below we present the most commondiseases of potted flowers , their causes, and methods of combating and preventing them.
Alternarioza
Symptoms: oval or round spots, dia. 1cm, dark brown, surrounded by a border,
Cause: Alternariosis isplant diseaseaffects generally weakened flowers under inappropriate conditions,
Plants attacked: dizygoteka, fatcream, calathea, ferns, pelargonium, poinsettia - star of Bethlehem, cheflera, silver old man,
Control: remove diseased leaves, spray with the following preparations: Bravo 500 SC, Penncozeb 80 WP,
Anthracnose
Symptoms: brown spots appearing on the youngest leaves, slowly attacking the remaining shoots, black spots of fungus sporulation may be visible on the surface of the necrosis,
Cause: Anthracnose
Plants attacked: anthurium, araucaria, potted ivy, cissus, diphenbachia, ficus, croton, orchids,
Control: spray the plants with the following preparations: Sarfun 500 SC, Bioczos BR,
Vascular fusariosis
Symptoms: stunted plant growth, wilting, yellowing and browning leaves and tubers,
Cause: Vascular fusariosis is caused by too much watering, stagnant water,
Plants attacked: asparagus, Persian cyclamen, curved nolina, bromeliads, chrysanthemum,
Control: remove diseased plants, water the rest with the following preparations: Rovral Flo 255 S.C., Sarfun 500 SC,
Phytophthora
Symptoms: lack of plant growth, brown dead tissue visible at the base of the shoot, plants lose their natural color and shine,
Cause: Phytophthorosis is caused by too humid and cool ground and stagnant water,
Plants attacked: azalea, chrysanthemum, cyclamen, diphenbachia, dracaena, potted gerbera, peperomia, african violet, perennial flower,
Control: use water at room temperature for watering, remove diseased plants, water the rest with the following preparations: Magnicur Energy, Bioczos BR, limit watering,
Powdery mildew
Symptoms: powdery, white mycelial coating that darkens with time, black spots of fungus sporulation appear,
Cause:plant fungal disease , the spread of which is favored by warm and humid air,
Plants attacked: azalea, begonia, chrysanthemum, gerbera, cissus, hydrangea, rose, vulture, kalanchoe, cyclamen, croton,
Control: isolate diseased plants, spray with preparations containing sulfur or lecithin: Biosept 33 SL, Rubigan 12 EC, Baymat AE,
Soft bacterial rot
Symptoms: black, watery enlarging spots on leaves, shoot dieback, visible rot on tubers,
Cause: soft bacterial rot is caused by too much watering and stagnant water in the pot,
Plants attacked: cyclamen, diphenbachia, dracaena, yucca, kalanchoe, cacti, arrowroot, orchids, poinsettia, fatsjob, home caladium,
Control: remove diseased plants, spray the susceptible species next to them with the substrate: Biochikol 020 PC, Biosept 33 SL, Miedzian 50 WP,
Ring spot of diphenbachia
Symptoms: round, brown spots on the leaves, black clusters of fungus appearing on the dead tissues in the form of a ring,
Cause: ring spot affects generally weakened plants kept in inappropriate conditions,
Plants attacked: ivy, diphenbachia, dracaena, ficus, pillar, arrowroot, peperomia, pilea, perennial, trefoil, paronychia, ficus,
Control: remove infected leaves, spray with preparations: Bravo 500 SC, Biochikol 020 PC,
Leaf spots
Symptoms: round, chlorotic and then brown spots with a darker border, sometimes blending together leading to the death of the leaves,
Cause: leaf spot affects generally weakened plants kept in inappropriate conditions,
Plants attacked: aralia, azalea, ivy, ficus, calance, kalanchoe, kalatea, ferns, arrowroot, peperomia, palm trees,
Control: do not spray the plants, remove sick leaves, use the following preparations: Bravo 500 SC, Sarfun SC, Baymat AE,
Rhizoktonioza
Symptoms: inhibition of plant growth, black or brown spots on the leaves, light brown mycelium on the surface of diseased tissues, dull leaves,
Cause: Rhizoctoniosis is caused by stagnant water, too moist substrate,
Plants affected: ivy, cissus, chrysanthemum, peperomia, aglaonema,
Control: remove diseased plants, disinfect the soil in the remaining ones with formalin or Kaptan, water with the following preparations: Rizolex 50 WP, Antifung 20 SL,
Sadzak
Symptoms: a dark soot-like coating of mycelium appears on the surface of the leaves, relatively easy to remove, note - fungi develop most often on the secretions of pests from the group of scots,
Cause: soot,
Plants attacked: lemon, fuchsia, gerbera, arabic coffee, hibiscus,
Control: wipe leaves with a damp cloth, spray with the preparation: Bravo 500 SC, Serbavit 530 SC,
Gray mold
Symptoms: gray, fluffy coating dusty in stronger air, infected parts darken and die,
Cause: gray mold is favored by heat, high air humidity,
Plants attacked: begonia, ivy, cyclamen, dizygoteka, dracaena, ficus, philodendron, gynura, ferns, kalanchoe,
Control: remove diseased plant parts, ventilate a lot, water only in the morning, spray with the preparation: Biochikol 020 PC, Sumilex 500 SC,
Werticilioza
Symptoms: stunted plant growth, yellowing, browning leaves that die over time, browned wires,
Cause: Verticillium wilt is caused by improper, excessive watering and too cool substrate,
Plants attacked: aralia, ficus, impatiens, pelargonium, peperomia,
Control: remove diseased plants, water the rest with the following preparations: Sarfun 500 S.C., Topsin M 500 SC,
Die-off of shoots
Symptoms: single, slightly sunken, light brown spots at different height of shoots,
Cause: Shoot dieback occurs in generally weakened plants kept in inappropriate conditions,
Plants attacked: aralia, ficuses, hibiscus,
For combating: cut sick shoots below the site of infection, smear the wounds with white emulsion paint with the addition of Topsin M 500 SC, Sarfun 500 SC, spray whole plants with the preparation,
Rotfiend
Symptoms: stunted plant growth, yellowing, dying leaves, dead root tissues easily separate from the rest of the plant,
Cause: Rot rot is caused by watering too cold water,
Plants attacked: begonia, diphenbachia, kalanchoe, croton, pelargonium, peperomia, poinsettia, Szeflera, African violet,
Control: use water at room temperature for watering, remove diseased plants, water the rest with the following preparations: Magnicur Energy, Bioczos BR,
Based on: M. Schubert, R. Herwig, We live among flowers, PWRiL, Warsaw 1986, pp. 96 - 99; J. Wolff, We cultivate indoor plants, Delta SA; A. Wojdyła, The most dangerous diseases of potted plants, Dzialkowiec, special issue 4/2003 (House in flowers), pp.46 - 48.
