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”
There is an increasing trend towards organic and natural products – from food, cosmetics, and even down to the choice in pesticides. It’s not uncommon for people to lean towards or prefer a pesticide that is ‘natural’. After all, an unnatural pesticide will be more harmful, right? However, there’s a discrepancy between perceived safety of ‘natural’ and the reality. For starters, there seems to be no regulation on the word “natural”. As the FDA puts it,
On June 24th and 25th (2014), a number of Texas A&M AgriLife personnel set out to McKinney to collect data on susceptibility of different varieties of crape myrtles to the new invasive pest, crape myrtle bark scale (CMBS). McKinney is home to over 114 varieties of crape myrtles from all over the world, making it a great site to investigate the preference of CMBS for certain cultivars and varieties. Follow the gallery below to see how the research was carried out.
A new invasive scale of crape myrtles has recently been detected. Current evidences suggest that the species is Eriococcus lagerostroemia, a native to the plant host to Lagerostroemia sp., also found in China, Japan, Korea, India, Mongolia, South Korea and United Kingdom.