Diagnosing Problems

Living in Florida allows us to have lush, tropical landscapes, but it also allows insects, fungus and other problems to thrive.  In general a healthy landscape and garden should not be plagued with such problems, but on occasion we come across issues.  Some plants are just prone to theses issues.  Inspecting your garden and landscape weekly is beneficial in catching problems early on and treating properly.



Take a clipping of your problem, place it in a ziploc bag and bring into the nursery and we can help identify the problem and suggest how to treat.



Below are some pictures and descriptions of common concerns brought into the nursery.  Learn about how to treat of if treatment is even needed.



Commonly mistaken for killing trees and bushes, lichens appear when a decline in trees and bushes defoliate, allowing moisture and sunlight to reach branches that create perfect conditions for Lichens to grow.  Lichens are mainly an eye sore and can only be removed by hand, possibly loosened by Copper Fungicide.


Aphids are a chewing/sucking insect that attacks foliage for the juices in the leaves.  They produce secretions called honey dew that is sticky.  This can create a black sooty mold on the surface of the leaves.  Aphids are relatively easy to control.  Most organic insecticides like oils and soaps can work.


Sticky secretions left on leaves from chewing and sucking insects allows dirt, pollution and droppings to stick to the leaves surface.  This creates the black sooty mold.  This can be washed off with plain dawn dish soap and water.  If left on the leaves, lack of sunlight can damage your foliage.


Scale are chewing/sucking insects.  They have a hard outer body that makes them harder to control.  We recommend a Systemic Insecticide to control these.


Mealybugs are chewing/sucking insects.  Control of these can be achieved with use of Systemic Insecticide.


Holes in your leaves?  Most likely the result of snails or slugs.  Snails and slugs come from the ground up to feed on foliage and are often not found on the leaves during the day.  Bait can be used to control these.  We carry Sluggo Plus.


A leaf miner is the larva of an insect that lives in and eats the leaf tissue of plants. It is located inside the layer of the leaf making topical sprays ineffective.  They mostly attack newest foliage and are more of a nuisance than problem.  Sometimes just trimming the damage is enough.  We have a product that controls them, but the cycle of the insect is every 7 days.


Powdery mildew is the name given to a group of diseases caused by several closely related fungi. Their common symptom is a grayish-white, powdery mat visible on the surface of leaves, stems, and flower petals.  A fungicide is needed to control.  Commonly found on big leafy vegetable plants and Hydranges.


Extended periods of rain or moist conditions can cause these fungal problems. Much of the time these conditions may solve themselves as warmer temperatures arrive and foliage and soils dry. Fungicides can also be used to help control the disease.



Plants not grown in sun will burn when placed into direct sun.  Most shade loving plants will burn if placed in direct sun for a long enough period.

2720 Land O' Lakes Blvd.; Land O' Lakes, FL 34639 | 813-948-1890 | contact@duncheons.com

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