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Eco-friendly Control of Aphids in the Garden

Ants, lady beetles and a clear sticky substance on your leaves are good indications that aphids have moved into your garden for a meal. 

These small tear-dropped shaped insects come in a variety of colors including black, brown, green, red, and peach. 

These pests have needle-like mouthparts and suck plant juices, causing leaves to curl, yellow, brown become distorted and stunted when populations and feeding levels are high.

The aphids secrete a clear sticky substance called honeydew.  Ants often move in to feed on this sweet tasty treat.

And if you see lady beetles, nature has moved in to control this pest.  Both the adults and larvae can eat hundreds of aphids in one day.

Start treatment, if needed, with a strong blast of water.  This dislodges and kills many of the aphids.  Follow with eco-friendly products like insecticidal soap, Horticulture oil, or Neem.  Repeat weekly as needed.

A bit more information: A black fungus called sooty mold will occasionally develop on this sticky liquid.  The fungus feeds on the honeydew not the plant. Fortunately, controlling the aphids will help wash off and prevent the sooty mold.

Upcoming Appearances


Jan. 26, 2022
Gardening for Wildlife
(webinar)

Jan. 29, 2022
WCBA's Home Building &
Remodeling Expo

West Bend, WI
(in-person event)

Feb. 2, 2022
Small Space Gardening
(webinar)

Feb. 11-13, 2022
PBS Wisconsin
Garden & Landscape EXPO

Madison, WI
(in-person event)

Feb. 18-20, 2022
NARI Milwaukee
Spring Home Improvement Show

Milwaukee, WI
(in-person event)

Feb. 23, 2022
Dahlias - Proven Performers!
(webinar)

March 1, 2022
Michigan Green Industry Assn.
Annual Tradeshow & Convention

Novi, MI
(in-person event)

March 5-6, 2022
​​​​​​​Maryland Home & Garden Show
Lutherville-Timonium, MD
(in-person event)

​​​​​​​March 26-27, 2022
​​​​​​​REALTORS Home & Garden Show
West Allis, WI
(in-person event)

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