17 year cicada emergence arrives shortly
Beginning in late April or early May billions of Brood X cicadas will emerge at the same time from their 17-year underground tunneling and feeding. The nymphs are food for animals living underground, and the adults feed every carnivore in the area. Even the many uneaten cicadas give back to the trees as they decay.
Cicadas are not harmful to people or trees although the grooves that females make in tree limbs to deposit their eggs can kill small branches,
Read more: https://www.nbcnews.com/science/science-news/get-ready-brood-x-every-17-years-cicada-swarm-coming-rcna429
Emerald ash borer moving into Western Kentucky
The emerald ash borer is slowly making its way into Western Kentucky after spending the past decade largely in the eastern half of the state. “Western Kentuckians need to know if they have an ash tree. If they do, they need to start preparing to make some hard decisions,” said Jonathan Larson, entomologist with the University of Kentucky College of Agriculture, Food and Environment. “Those decisions are whether to remove the tree now and pay that money up front or to invest some money and treat the tree to keep it around.”
Read more: https://news.ca.uky.edu/article/emerald-ash-borer-moving-western-kentucky
Eastern tent caterpillars have begun to hatch
The caterpillars grow and develop when the temperature is above 37 degrees F. Their preferred food plants are wild cherry, apple and crabapple, but they may appear on hawthorn, maple, cherry, peach, pear and plum as well.
“Managing ETC in small ornamental trees, such as flowering crabapples, is easy. Just wear a pair of grocery store plastic bags like mittens, climb a stepladder, pull out the tents, turn the bags inside out to ‘bag’ the caterpillars and stomp them,” said Daniel Potter, UK entomology professor. “Pruning out nests in ornamental trees sounds great, but in reality, by the time they are noticed, they’re often in branch crotches where pruning will compromise the symmetry of the tree.
“Spraying the flowering fruit and decorative trees preferred by the caterpillars can be a bee hazard – and with some products, a label violation – because the trees are in bloom with bees visiting them at the same time eastern tent caterpillars are active,” he said.
Read more: https://news.ca.uky.edu/article/eastern-tent-caterpillar-egg-hatch-now-underway-kentucky
For more information about how to assess trees for egg masses, the UK Entomology publication, Checking Eastern Tent Caterpillar Egg Masses, is available at https://entomology.ca.uky.edu/ef449.
Contact: Jonathan Larson, firstname.lastname@example.org;
Writer: Holly Wiemers, email@example.com
And there’s also disease, invasive species, and exotics.
2020 Forest Health Highlights report from KDF
The Kentucky Division of Forestry's forest health program focuses on identifying and monitoring for potential insect, disease, invasive and exotic plant problems that threaten our forestlands.
Read more: https://eec.ky.gov/Natural-Resources/Forestry/forest-health/Pages/default.aspx