Do Yellow Monday Cicadas Cause Tree Or Shrub Damage In Lawns

On many lawns the arrival of yellow Monday cicadas raises questions about possible damage to trees and shrubs. This article rephrases the central question and explores what the insects can and cannot damage.

Understanding the Yellow Monday Cicada

Yellow Monday cicadas are a large insect in the cicada family that emerges in summer in great numbers. They belong to a group of periodical cicadas that sometimes appear every several years in a given region. The name is descriptive of the noise and the timing rather than a strict taxonomic designation.

They spend most of their life underground as nymphs feeding on sap from tree roots and they emerge as winged adults for a brief period. Adults mostly interact with trees and shrubs and do not feed on turf grass. The yellow Monday designation reflects local naming and does not imply a different feeding habit from other cicadas.

Life Cycle and Emergence Timing

Cicadas begin life as eggs laid by females into small slits in tree branches. Nymphs hatch and drop to the ground where they live underground for several years feeding on sap from roots.

When soil temperatures reach a threshold in late spring or early summer the nymphs tunnel to the surface. They molt into adults during warm conditions and then gather in large choruses that produce the characteristic sound.

Damage Potential to Trees and Shrubs

Cicadas feed by piercing into sap conducting tissue of trees and shrubs using specialized mouthparts. In healthy mature trees this feeding is usually not harmful and does not cause lasting damage.

The most visible harm is typically caused by females during the egg laying stage when they insert slits into small twigs. This can cause small branch dieback and twig breakage on young or stressed plants.

Impact on Lawns and Ground Level Hosts

Cicadas do not feed on turf grass and they rarely cause direct damage to lawns by feeding. Their impact on lawns is limited to the detritus they leave behind and to the logistics of movement and noise.

After emergence the presence of numerous shed skins on lawn areas can be unsightly and require cleaning. Raking or mulching the debris may be beneficial for aesthetics but not necessary for plant health.

Environmental Conditions that Influence Damage

Damage potential depends on weather, canopy structure, and the health of woody plants. Warm dry weather promotes quicker egg laying and longer adult activity.

Soil moisture and tree species influence how much sap is extracted during feeding. Ornamental trees with delicate branches may experience more visible twig damage following egg laying.

Managing and Reducing Potential Damage

A practical approach focuses on minimizing harm to trees while avoiding unnecessary pesticide use. Non chemical strategies are preferred when possible because cicadas pose minimal risk to most plants and ecosystems.

Homeowners can observe emergence and plan actions accordingly. Planning helps protect young trees and keeps lawns tidy.

Practical steps for homeowners

• Avoid pruning small twigs during the egg laying period as this can remove unhatched eggs and cause further injury

• Do not apply broad spectrum insecticides during the emergence period because these chemicals can harm beneficial insects and birds

• If possible place lightweight netting around vulnerable shrubs to deter female cicadas from laying eggs

• Clean up shed skins and fallen shells to reduce nuisance and help yard appearance

• Water deeply after the cicada period to help trees recover and maintain soil moisture

Professional Advice and When to Seek Help

If a landscape shows extensive twig or branch dieback it may indicate stress beyond cicadas. A certified arborist can assess tree health and advise on management options.

If you own young ornamental trees or recently planted shrubs you should monitor for vigor after an emergence. A professional can advise on pruning schedules and rehabilitation activities as needed.

Preventive Practices for Home Lawns

Healthy cultural practices strengthen trees and reduce the perceived risk of cicada damage. Water management, proper fertilization, and appropriate pruning foster resilience in woody plants.

Timely mulching and avoiding soil compaction support root development and recovery after emergence. Landscape designs that include diverse species reduce the impact of any one pest and help overall health.

Conclusion

In summary yellow Monday cicadas mostly avoid direct damage to established lawns and healthy trees. Most harm is limited to small twigs and ornamental shrubs during egg laying and is rarely severe.

With proper observation and through conservative management homeowners can enjoy cicada season while protecting their landscape. Education and planning make it possible to minimize disturbances while preserving the ecological benefits of cicadas.