Why Aphids Return in Late Fall โ And How to Finally Stop Them
If you thought aphids were a spring and summer problem, surprise โ these tiny sap-sucking pests have one more trick up their sleeve. Just when container gardeners are preparing for winter, ๐๐ฉ๐ก๐ข๐๐ฌ ๐ฆ๐๐ค๐ ๐ ๐ฌ๐ง๐๐๐ค๐ฒ ๐๐จ๐ฆ๐๐๐๐๐ค ๐ข๐ง ๐ฅ๐๐ญ๐ ๐๐๐ฅ๐ฅ. But why now? And more importantly, how do you stop them before they multiply indoors or damage overwintering plants? Letโs break down whatโs really going on with late-season aphid attacks and the simple steps you can take to protect your container garden. ๐ ๐๐ก๐ฒ ๐๐ฉ๐ก๐ข๐๐ฌ ๐๐จ๐ฆ๐ ๐๐๐๐ค ๐ข๐ง ๐๐๐ญ๐ ๐
๐๐ฅ๐ฅ Most gardeners assume pests disappear when temperatures drop, but aphids are surprisingly cold-tolerant. Hereโs why they return in fall: ๐ ๐. ๐๐ก๐๐ฒโ๐ซ๐ ๐๐จ๐จ๐ค๐ข๐ง๐ ๐๐จ๐ซ ๐๐ข๐ง๐ญ๐๐ซ ๐๐ก๐๐ฅ๐ญ๐๐ซ As outdoor plants begin to fade, aphids migrate toward protected spaces, like the undersides of leaves, cracks in pots, or even garden benches near container plants. If youโre overwintering pots on a porch or patio, youโre creating a cozy bug hangout. ๐ฟ ๐. ๐๐ฅ๐๐ง๐ญ๐ฌ ๐๐ซ๐ ๐๐ญ๐ซ๐๐ฌ๐ฌ๐๐ ๐๐ง๐ ๐๐ฉ๐ก๐ข๐๐ฌ ๐๐จ๐ฏ๐ ๐๐ก๐๐ญ Cooler temperatures and lower light slow plant growth, making plants more vulnerable. Stressed plants send out chemical signals that actually attract sap-feeding insects like aphids. ๐ชด ๐. ๐๐ ๐๐ซ๐ข๐ง๐ ๐๐ก๐๐ฆ ๐๐ง๐ฌ๐ข๐๐ ๐๐ข๐ญ๐ก๐จ๐ฎ๐ญ ๐๐ง๐จ๐ฐ๐ข๐ง๐ When we move container plants indoors to protect them from frost, we often carry aphids with us. Tiny clusters of eggs or juvenile aphids may be hiding along stems or leaf veins, waiting for indoor heating to jumpstart reproduction. ๐ ๐. ๐๐ก๐๐ฒ ๐๐ฐ๐ข๐ญ๐๐ก ๐ญ๐จ โ๐๐ ๐ ๐๐จ๐๐โ In fall, many aphid species lay eggs instead of live young. These eggs are tough and survive freezing temps on plant stems and pot - ready to hatch later. ๐ ๐๐ข๐ ๐ง๐ฌ ๐๐จ๐ฎ ๐๐๐ฏ๐ ๐ ๐๐๐ญ๐ ๐
๐๐ฅ๐ฅ ๐๐ฉ๐ก๐ข๐ ๐๐ซ๐จ๐๐ฅ๐๐ฆ Keep an eye out for these symptoms if youโre overwintering plants or growing herbs indoors: * Sticky leaves or surfaces (from honeydew aphids excrete) * Curled, distorted, or yellowing leaves * Clusters of tiny green, black, or white insects * Ants crawling around soil or stems (they farm aphids for honeydew)