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Aphids

Stylized illustration of aphids

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What pulls these soft-bodied insects into a single family is their peculiar habit of clustering tightly on tender plant shoots while steadily draining sap and excreting a sticky, sugary liquid called honeydew. Whether they are bright green on your prized tomato plants or dark clusters hiding under rose leaves, they share a plump, pear-shaped build and a maddening talent for multiplying without mating when the weather suits them. You will often notice the leaves glistening with their sticky waste or turning black with sooty mold long before you spot the insects themselves.

You can tell them apart from the usual suspects by checking how they move and what they leave behind on the foliage. If you brush a leaf and a white cloud of insects takes flight, you are looking at whiteflies rather than aphids, which tend to stay put and shuffle along sluggishly. If the leaves are covered in fine silk webbing or silvery scars with tiny black specks, blame spider mites or thrips instead of these slow-moving sap-suckers.

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Illustration of AphidsAphidsFamily AphididaeIllustration of Green peach aphidGreen peach aphidMyzus persicaeIllustration of Cotton / melon aphidCotton / melon aphidAphis gossypii

Questions about aphids

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Learn how virgin birth, live young, telescoping generations and winter eggs explain the sudden crowd on your plants, and whatAphidsAre aphids bad for plants?Aphids are bad for plants, but how bad depends on the size of the colony, the age of the plant and whether natural predators are on the job. Learn how to confirm aphids, when to acAphidsAre aphids harmful to humans?Aphids do not bite, sting, or spread disease to people. The real risks are indirect: honeydew, sooty mold on fruit, and misused sprays. Here is how to identify them and respond safAphidsCan aphids fly?Learn whether aphids can fly, how winged aphids colonize new plants, and how to identify and manage these garden pests safely.AphidsHow do you get rid of aphids on indoor plants?How to get rid of aphids on indoor plants: confirm it is really aphids, rinse and isolate the plant, treat with insecticidal soap or neem every 7 to 10 days, and know when to callAphidsHow do you get rid of woolly aphids?Woolly aphids on your apple tree? Learn how to identify the cottony colonies, knock them back with water, soap or horticultural oil, protect beneficial insects, and spot the root dAphidsWhat are oleander aphids?A clear, practical guide to recognizing oleander aphids, telling real damage from sooty mold, deciding when to act, and knowing when to call a professional.AphidsWhat are milkweed aphids?Milkweed aphids are small sap-sucking insects that cluster on tender milkweed growth, leaving curled tips, sticky honeydew, and sometimes black sooty mold. Learn how to confirm theAphidsWhat are root aphids?An informational guide explaining what root aphids are, how to identify them, and how to manage infestations safely.AphidsThrips vs aphids: how can you tell the damage apart?Aphid damage is wet and sticky, thrips damage is dry and silvery. Learn the touch test, the black-speck clue and the leaf-shape differences that tell these two garden pests apart,AphidsWhat are little green bugs on roses?An informational guide explaining what tiny green bugs on roses are, how to identify them, and what practical steps to take next.AphidsWhat are little green bugs on lettuce?Learn what little green bugs on lettuce are, how to identify them by their movement and damage, and how to safely handle garden pests on leafy greens.AphidsWhat are orange bugs on a citrus tree?Learn what orange bugs on a citrus tree mean, how to identify them, and what practical steps to take next.AphidsWhat are little white bugs on strawberries?An informational guide on identifying and managing tiny white bugs on strawberry plants, covering whiteflies, spider mites, cyclamen mites, aphids, thrips, and mealybugs.AphidsWhy are ants tending aphids on a plant?Discover why ants farm aphids on your plants, how to identify the relationship, and what steps to take safely.AphidsHow do you identify aphids on new plant growth?Learn how to accurately identify aphids on new plant growth by looking for physical cues, secondary damage, and common warning signs.AphidsBlack aphids vs green aphids: does color change the response?Learn why aphid color does not change management strategies and how to identify and control these common garden pests.AphidsWhat are woolly aphids on ornamental plants?Learn what woolly aphids are, how to identify them on ornamental plants, and what practical steps you can take to manage infestations safely.AphidsHow do aphids affect rose buds?Learn how aphids affect rose buds, identify an infestation early, and choose the right management approach for your garden.AphidsWhen do aphids on roses need active control?Learn when aphids on roses require active control, how to identify them, and the practical steps to manage them safely.AphidsHow do you decide whether aphids on a plant need treatment?Learn how to decide whether aphids on your garden plants actually require treatment or if nature will handle them.AphidsWhen can beneficial insects reduce a garden pest problem?Learn when beneficial insects can control garden pests, how to identify helpful activity, and when professional intervention is required.AphidsWhat should you check before spraying a flowering plant?Learn what critical factors to check before spraying any flowering plant, including pollinator safety, label laws, weather limits, and pest identification.AphidsWhy do ants appear around aphid-covered plants?Learn why ants gather around aphid-covered plants, how to properly identify the pests, and what practical steps you can take to manage them.