potted plant diseases

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potted plant diseases

  1. 1. Potted plant diseases Plant: Spider Plant Term: Pot-bound
  2. 2. Spider Plant • Genus: Chlorophytum • Indirect Light • Keep Evenly Moist • Tolerates low humidity • Grows best between 50 -75 • Low fertilizer requirement • Flowers are small, • Scale, spider mites, & whiteflies are problems • Cut off babies & root them
  3. 3. Pot-bound • A condition where the roots have outgrown their container and spiral around until all of the soil is displaced.
  4. 4. Disease and Insects control pests by recognizing and controlling them on the plant
  5. 5. Common plant pests aphids white flies mealy bugs mites scale
  6. 6. Aphids small green insects with piercing mouths called plant lice suck plant juices from the plant work on stem and underside of leaves leaves become sticky with “honey- dew” causes growth of black sooty mold
  7. 7. Aphids leaves curl, disfigure, turn yellow use insecticidal soap or acephate (plant extract) Lady bugs or lacewing predators
  8. 8. White Fly small white, winged, sucking insects works on underside of leaves heavy egg producers infestation can occur quickly eggs laid on underside of plant leaves
  9. 9. White Fly cause plant to turn yellow have mottled appearance - spotty White Flies will leave the plant when the leaves are moved
  10. 10. Mealy Bugs sucking insect white , woolly mass, like a ball of cotton works on the underside of the leaves
  11. 11. Mealy Bugs sucking juices gives plant a faded yellow appearance control by swabbing the insect with a q-tip dipped in alcohol removes insect from plant
  12. 12. Mites small spider like insects on bottom side of leaves suck juices causing plant to turn yellow cannot be seen easily with the naked eye
  13. 13. Mites hold a white piece of paper under leaf and tap the leaves look for spider like insects moving on the paper wipe across the paper with your finger if mites are present, there will be a red smear control with insecticidal soap
  14. 14. Scale when mature, attack stems in a cluster small white gray lumps - oval shape plant turns yellow, loses vigor sticky sap appearance on plant remove with soapy water Wipe off with alcohol swab
  15. 15. Botrytis common disease - plant rot leaves turn black and develop a gray mold and will eventually rot off provide good air circulation use a fungicide - Benlate
  16. 16. Mildew common disease leaves get a heavy white coating fungicide – Benlate or ERase
  17. 17. Insecticides can be purchased in most stores read the label for applications and directions Insecticidal soaps are the safest and least toxic

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