Aphid Control in Omaha
The sticky film on the car is not sap and the tree is usually fine. What it is, when it matters, and when the honest answer is to leave it alone.
Free Property Check
Your tree is not leaking. Something is feeding on it.
It is not sap
The tree is not leaking. Aphids feed on sugary sap under pressure, take what protein they need and pass the rest straight through as honeydew.
The black film is a second thing
Sooty mold is a fungus that grows on the honeydew rather than on the plant. It blocks light and looks alarming; it is not infecting anything.
It rains down, so look up
Whatever is coated is under something. The problem is usually a maple, linden or honeylocust above the patio, not the shrub wearing the mess.
Most aphid calls do not need a treatment
All 36 problems we treat
Worth treating
402-332-2839Honeydew coating a car, a patio or a walkway you actually use
Sooty mold building on the shrubs and turf underneath
A young or newly planted tree with curling, distorted new growth
A tree already stressed by drought, chlorosis or construction
Heavy pressure returning to the same tree three seasons running
Fruit or vegetables underneath that you intend to eat
Leave it alone
A mature shade tree with a full canopy and no other symptoms
Aphids in May that ladybugs and lacewings are already working on
A one-off sticky spell after a warm, dry, still stretch of weather
Curled leaf tips on established growth with the rest of the tree fine
Anything on a tree nothing sits underneath
A colony that has already collapsed, which most of them do by July
Not sure which list you are on? Send a photo of the leaves and of what is underneath.
Where your tree actually sits on this
Talk to an arboristHow much the feeding is costing the plant
Cosmetic
The tree is fine and so is the yard
Some leaf curl, a bit of stickiness, nothing underneath it. This is the majority of aphid calls in this metro and it needs a hose rather than a treatment.
A nuisance
The mess is the problem, not the tree
Honeydew on the cars and the patio, sooty mold on the plants beneath. The tree is not at risk, and treating it is a decision about your yard rather than its health.
Actually harmful
The plant is losing ground
Young or stressed trees with distorted new growth and stalled shoot extension. This is where aphids stop being cosmetic and treatment is genuinely worth doing.
Judged from the plant, not from the amount of stickiness. A clean tree can be worse off than a sticky one.
If your tree is in the first band, we will say so and there will be nothing to pay.
“Called about the mess on the patio expecting a spray. They pointed out the ladybugs, told us to wait three weeks, and it sorted itself out.”
The insects already working on it for free
Plant health care
An aphid colony on a shade tree is rarely alone. Ladybug larvae, lacewings, hoverfly larvae and parasitic wasps all key on aphids, and they arrive a few weeks after the aphids do because they are following the food. Left to it, that is what ends most infestations in this metro by the middle of summer.
A broad spray interrupts exactly that. Aphids reproduce faster than anything eating them, so both populations crash and the aphids rebuild first, into a canopy that now has no predators in it. The second problem is spider mites, which were being held down by the same predators and which explode in hot, dry conditions once those are gone. A sticky maple in June can become a bronzed, mite-covered maple in July on the back of one enthusiastic treatment.
None of which means aphids are never worth treating. It means the treatment should be aimed at the plant that is actually losing ground, applied while the colony is still building, and kept off everything that does not need it. That is a slower conversation than selling a spray, and it is the one worth having.
Common questions about aphids and honeydew in Omaha
Ask us something elseWhat is the sticky stuff dripping on my car?
Honeydew, which is aphid waste rather than tree sap. Aphids feed on sap that is under pressure inside the leaf, take the small amount of protein they need, and pass the sugar straight through. On a warm still day under a heavily infested maple or linden it falls like a fine mist and coats everything below.
What is the black coating that follows it?
Sooty mold. It is a fungus that grows on the honeydew itself, not on the plant, so it does no direct damage. A heavy layer does block light on the leaves underneath, which slows those plants down, and it washes off with soapy water once the honeydew stops arriving.
Will aphids kill my tree?
Almost never, on an established tree. A mature maple or honeylocust carrying a heavy aphid population is not in danger, and the colonies usually collapse on their own by midsummer as predators build up and the leaves toughen. Where aphids do real harm is on young trees, newly planted trees, and anything already stressed, where the loss of sap slows growth that the plant cannot spare.
Should I just spray them?
Not reflexively, and this is the part worth understanding. Broad-spectrum sprays kill the ladybugs, lacewings and parasitic wasps that were already eating the aphids, and those predators recover more slowly than the aphids do. A blanket spray in June is a well-known way to end up with a worse aphid population in July, plus a spider mite outbreak that was previously being held in check.
So when is treatment the right call?
When the honeydew is landing on something you use, when sooty mold is building up on what grows underneath, or when the affected plant is young or stressed enough that the feeding actually costs it. In those cases we use targeted treatment on the specific plant rather than a property-wide application, and we time it while the colony is still building.
Can I do anything myself?
On something you can reach, a strong jet of water knocks most of a colony off and they are poor at climbing back. Wash honeydew off hard surfaces before the sooty mold establishes, and avoid feeding an affected tree heavily with nitrogen, because the soft flush of growth that produces is exactly what aphids want.
Plenty of these calls end with us telling you to wait. That advice is free.
What goes with an aphid problem
All services
Plant Health Care
Where a stressed tree that keeps getting aphids actually belongs.
Deep Root Fertilization
A tree under stress is the one that suffers from aphids. Soil work is the durable answer.
Tree Trimming
Thinning a dense canopy over a patio changes how much lands on it.
