There have been several reports of woolly aphid infestations in East Texas within the last few weeks. Woolly aphids are often described as being small white flying insects found on leaves. Just like all other aphids, they penetrate leaf veins and feed primarily on the phloem. In doing so, they excrete a lot of the excess phloem in the form of “honeydew” – a sugary solution which often ends up on nearby leaf surfaces or on the ground near the infested tree. A high level of infestation often results in a sticky ground and grass below the infested tree and the appearance of black sooty mold where honeydew has coated a surface. Black sooty mold will appear as a satin bumpy black substance (hence the name “sooty mold”) on the honeydew-coated surface. Continue reading Woolly Aphids
Originally created for the Texas Nursery and Landscape Association 2014 Expo, this presentation outlines five common pests found in greenhouse ornamentals and turf crops, how to monitor them and management strategies, as well as informing growers about new invasive insects they should keep their eyes open for.