Understanding and Combating Lanternflies
Introduction to Lanternflies
Spotted lanternflies (Lycorma delicatula) are invasive pests originally from parts of China, India, and Vietnam. They were first detected in the United States in Pennsylvania in 2014. Since then, these insects have spread to several states, posing significant threats to agriculture and forests by feeding on a wide range of plants and trees.
Key Identification Features
- Nymph Stage: Early stages are black with white spots, transitioning to red with white dots and black stripes in later stages.
- Adult Stage: Adults are most recognizable by their distinctive wings. The forewings are grey with black spots, and the hind wings have patches of red and black with a white band.
- Size: Adults can reach about 1 inch in length.
What to Look Out For
- Egg Masses: Resemble patches of mud and are often found on smooth surfaces like trees, stones, and outdoor furniture.
- Sap Oozing or Weeping: From trees which can attract other insects or promote fungal growth.
- Groups of Lanternflies: Often found feeding on host trees or seen hopping from one place to another.
Ways to Combat Lanternflies
- Physical Removal: If you find egg masses, scrape them off the surface into a bag containing alcohol or hand sanitizer to kill the eggs before disposal.
- Use of Sticky Bands: Wrap tree trunks with sticky bands to catch nymphs and adults. Ensure to wrap a protective cover over the bands to prevent small birds and animals from getting stuck.
- Chemical Treatments: Insecticides can be effective, especially if applied when lanternflies are in their nymph stage. Consult with local agricultural extensions or pest control professionals for advice on suitable products and usage guidelines.
- Biological Control: Research is ongoing into natural predators and biological agents that can help control lanternfly populations.
- Report Sightings: Many regions affected by lanternflies have hotlines or websites where sightings can be reported to help track and manage outbreaks.