Download - 10 21 Potted Plant Diseases
Potted plant diseases
Plant: Spider Plant
Term: Pot-bound
Spider Plant
• Genus: Chlorophytum• Indirect Light• Keep Evenly Moist• Tolerates low humidity• Grows best between 50 -75• Scale, spider mites, & whiteflies are
problems• Cut off babies & root them
Pot-bound
• A condition where the roots have outgrown their container and spiral around until all of the soil is displaced.
Disease and Insectscontrol pests by recognizing
and controlling them on the plant
Common plant pestsaphidswhite fliesmealy bugsmitesscale
Aphidssmall green insects with
piercing mouthscalled plant licesuck plant juices from the
plant
Aphidswork on stem and underside
of leavesleaves become sticky with
“honey-dew”causes growth of black sooty
mold
Aphidsleaves curl, disfigure, turn
yellowuse Orthene or insecticidal
sopa
White Flysmall white, winged, sucking
insectsworks on underside of leaves
White Flyheavy egg producersinfestation can occur quicklyeggs laid on underside of
plant leaves
White Flycause plant to turn yellowhave mottled appearance -
spottyWhite Flies will leave the plant
when the leaves are moved
Mealy Bugssucking insectwhite , woolly
mass, like a ball of cotton
works on the underside of the leaves
Mealy Bugssucking juices gives plant a
faded yellow appearancecontrol by swabbing the insect
with a q-tip dipped in alcoholremoves insect from plant
Mitessmall spider like insects on
bottom side of leavessuck juices causing plant to turn
yellowcannot be seen easily with the
naked eye
Miteshold a white piece of paper
under leaf and tap the leaveslook for spider like insects
moving on the paper
Miteswipe across the paper with
your fingerif mites are present, there will
be a red smearcontrol with Kelthane or
Orthane
Scalewhen mature, attack stems in
a clustersmall white gray lumps - oval
shapeplant turns yellow, loses vigor
Scalesticky sap appearance on
plantremove with soapy water spray with Malathion or
Orthane
Botrytiscommon diseaseleaves turn black and develop
a gray mold and will eventually rot off
Botrytisprovide good air circulationuse a fungicide - Benlate
Mildewcommon diseaseleaves get a heavy white
coatingfungicide - Benlate
Insecticidescan be purchased in most
storesread the label for applications
and directionsInsecticidal soaps are the
safest and least toxic