The Study: A Shift in Perspective.

According to the research led by Penn State, hardwood trees like maple, willow, and birch may be less vulnerable to spotted lanternflies than initially assumed [1]. This finding challenges the notion that these insects cause extensive damage to trees. While they feed on sap, the study suggests that the impact on tree health may be less severe than previously believed.

Not a Significant Threat to Tree Health:

The study further reveals that spotted lanternflies are more of a nuisance than a true menace to tree health [3]. Although they extract sap, it is not a direct cause for concern. While some sap loss can occur, it is unlikely to result in the decline or death of the trees. Therefore, there is no need to panic about the long-term survival of hardwood trees due to spotted lanternfly infestations. While there is not a significant need to be on a full Spotted Lanternfly reduction program, an early-season systemic insecticide treatment will help control the SLF population as well as help prevent other insects. Also, a systemic fungicide application with phosphite will boost the tree’s immune system, and a fertilization application will promote overall tree health.

Nuisance Factors to Consider:

While spotted lanternflies may not destroy trees, they still bring numerous nuisances that warrant attention. Here are a few reasons why they can be bothersome:

a) Sticky Secretions: Spotted lanternflies excrete a sticky substance called honeydew, which can coat trees, plants, and outdoor surfaces. This secretion promotes the growth of black sooty mold, creating an unsightly mess in gardens and outdoor spaces.

b) Swarming Behavior: These insects are known to congregate in large numbers, forming swarms that can be overwhelming. Their presence can be unsettling and hinder outdoor activities like picnics or gardening.

c) Agricultural Impact: While the study primarily focuses on hardwood trees, it is important to note that spotted lanternflies can still threaten crops. They feed on various plants, including grapes, hops, and fruit trees, potentially impacting crop yields.

Conclusion:

The recent study from Penn State has provided valuable insights into the true nature of spotted lanternflies. While they may not be as destructive to hardwood trees as previously believed, their presence can still be a nuisance. Understanding the implications of their swarming behavior, sticky secretions, and potential impact on crops is crucial. By raising awareness about these nuisances, we can better manage and mitigate the inconveniences caused by spotted lanternflies while preserving our natural ecosystems.

References:

[1] New long-term research led by Penn State has revealed that hardwood trees, such as maple, willow and birch, may be less vulnerable to spotted …

[2] Smashing lanternflies and smashing myths: Study finds they may not be as harmful as once thought

[3] Spotted lanternfly isn’t as destructive as previously thought, according to a recent Penn State study.