Aphids and natural enemies on tulip poplar

Tulip poplar leaf with aphids, a cluster of yellow lady beetle eggs, and a brown aphid mummy which houses a parasitoid wasp. Photo: SD Frank

This time of year tulip poplar leaves are covered in aphids. The great thing about aphids is that they attract a diverse array of predators and parasitoids and even fungi. Therefore, after a few weeks of dowsing your sidewalk in honeydew the aphids almost disappear. Here is a tulip poplar leaf that foreshadows the aphids demise. It has lots of aphids but also lady beetle eggs and a parasitoid mummy. On the same tree I found syrphid fly larvae, green lacewing larvae and eggs, and other predators. Thus, I don’t feel any management is usually necessary for these aphids. In fact I predict that they actually could reduce pests on nearby plants by attracting so many natural enemies.

2017-06-28T15:09:08+00:00 May 5th, 2015|Categories: Landscape IPM, Natural Enemies, Nursery IPM|Tags: , |

About the Author:

Steve Frank

I am broadly interested in the ecology and management of arthropod pests. Herbivorous arthropods cause extraordinary damage to plants in agricultural, urban, and natural ecosystems. Understanding interactions between pests and their environment, plant hosts, and natural enemies can improve management practices and reduce pesticide applications.