in your garden
In Your garden
In Your Garden
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Horticultural oil sprays
Mineral oil: Bonide All Seasons Horticultural and Dormant Spray Oil; Monterey Horticultural Oil, Summit Year Round Spray Oil
Bayer Advanced Natria Insecticidal Soap, Bonide Insecticidal Soap, Miracle-Gro Nature’s Care Insecticidal Soap, Garden Safe Insecticidal Soap, Safer Brand Insect Killing Soap
Insecticidal soaps with pyrethrins
Safer Brand Tomato and Vegetable Insect Killer, Safer Brand Yard and Garden Insect Killer
Stikem Tree Pest Barrier, Tree Tanglefoot Insect Barrier
Row covers (Fast Start Seed Blanket, Easy Gardener Plant and Seed Blanket, Harvest Guard Protective Garden Cover, Turf Starter Seed Germination Blanket, others)
Green lacewings, lacewing eggs, lady beetles (ladybugs): available at local garden centers or online
All aphids make honeydew, a sweet, sticky substance on leaves and stems that attracts ants. Argentine ants love honeydew so much that they protect aphids from their natural enemies. (See the Ant fact sheet in this series for tips on controlling ants.) Honeydew may also cause harmless sooty mold fungus, which makes leaves look black and dirty.
Argentine ants are frequent invaders in California homes. They are tiny (1/8 inch). They come inside a fewat a time at first (the scouts), and then in long lines, following scent trails to a food source.
Aphids (and other plant pests including whiteflies and scale) produce a sweet, sticky substance called honeydew that attracts ants. Seeing a lot of ants on plant stems is a sure sign of a pest infestation. Since ants will actually protect honeydew-producers from natural predators, it’s important to keep ants away when you’re trying to get rid of aphids.