Do Prairie Cicadas Damage Trees Or Plants

Prairie cicadas are a group of insects that emerge in warm seasons and fill the air with loud calls. Many gardeners wonder if these creatures injure trees or other kinds of vegetation. This article explains how prairie cicadas feed, what types of damage are possible, and how to respond in a practical and informed manner.

What are Prairie Cicadas

Prairie cicadas are part of the larger cicada family that inhabits grasslands and open woodlands. They are known for their heavy bodies and loud calling songs that often dominate the soundscape during certain months. These insects enrich the local ecosystem by providing a food source for birds and other predators.

They feed by piercing plant tissues and drawing sap through specialized mouthparts. Adults typically feed on the sap of trees and shrubs for short periods each day, while nymphs live underground and feed on plant roots for several years before emerging. The life cycle of prairie cicadas is synchronized within local populations but varies with regional climate conditions.

Life Cycle and Emergence Patterns

The life cycle of prairie cicadas includes years spent underground as nymphs followed by a relatively brief above ground period as adults. Nymphs molt multiple times while feeding on root tissues and gaining energy for the final stage of their emergence. Adults mate and lay eggs during a window of a few weeks in late spring or early summer.

Emergence timing depends on local temperature, soil conditions, and regional species. In some prairie regions the activity begins with the warming of soils in late spring and continues into early summer. The period of adult activity is intense but short and is followed by a rapid decline as the population fades away.

Feeding Habits and Plant Injury

Prairie cicadas feed using specialized mouthparts that extract sap from plant vascular tissues. The adults often feed on the leaves and stems of trees and shrubs for brief intervals each day. This feeding generally results in only minor stress to well established plants.

The most noticeable injury occurs when females insert eggs into the bark of small twigs. This egg laying creates slits that may cause twig dieback or flagging on ornamental trees and shrubs. In most cases mature trees tolerate this activity without lasting harm. The overall impact on plant health depends on the age and vigor of the plant and on environmental stress factors present at the time.

Damage Potential on Trees

The potential for significant damage to mature trees from prairie cicadas is low. Healthy, robust trees are able to recover from typical egg laying and minor feeding activity without long term effects. The main consequence for trees is the potential for cosmetic twig damage on young or recently planted specimens.

In some situations young trees or recently pruned trees may experience greater injury to new growth. This can slow growth temporarily but does not usually threaten the survival of a healthy tree. It is important to distinguish between real injury and normal cicada activity that would occur in any given year.

Impact on Shrubs and Herbaceous Plants

Shrubs that are small or newly planted can experience more noticeable injury because the egg laying targets are concentrated on a limited set of branches. The damage to herbaceous perennials and ornamental plants is typically minimal unless plants are small and newly established. In most landscapes the impact on these plants is primarily cosmetic rather than harmful to overall plant vigor.

Garden beds with young shrubs may show a few torn or split stems where adult females deposited eggs. These injuries can be cleaned by normal pruning at the end of the growing season. Overall cicada activity tends to be temporary and does not seriously reduce the length of the life of well managed plants.

Ecological Role and Benefits

Cicadas play an important ecological role in prairie ecosystems. They act as a food source for birds, small mammals, and other insects. Their emergence coincides with the availability of other food resources, which can influence predator populations and local feeding dynamics.

The decomposing bodies of cicadas after death contribute nutrients to the soil. This enrichment supports soil health and helps sustain plant communities in prairie landscapes. Their presence can be a signal of a healthy ecosystem and an indicator of ecological balance in an area.

Management and Prevention

Management strategies for prairie cicadas emphasize observation and selective actions rather than broad chemical control. In most landscapes, cicadas do not require intervention because the benefit of ecological contribution outweighs the temporary cosmetic damage. Homeowners can take simple steps to minimize any undesirable effects during emergence.

Property owners should avoid aggressive pruning during the peak egg laying period because fresh cuts can attract additional damage. Allowing nature to run its course and focusing on general tree and shrub health helps ensure resilience in the face of cicada activity. When dealing with small plants or delicate ornamentals, protective measures can be considered to reduce the likelihood of serious injury.

Practical Steps for Homecare

• Monitor local emergence schedules with regional extension offices to plan activities and avoid nursery or pruning during peak egg laying

• Do not prune trees or shrubs during the cicada emergence period to minimize twig injury and reduce the chance of spreading wounds

• Use lightweight netting or cloth coverings to protect young or valuable ornamentals during the short window of adult activity

• Provide adequate irrigation and avoid excessive drought stress so that trees and shrubs can recover quickly if injury occurs

• Practice regular but careful pruning at times when cicada activity is unlikely to cause adverse effects on new growth

Key Myths and Facts

• Myth finding is that prairie cicadas are unstoppable tree killers; Fact is that mature trees are rarely harmed to a lasting degree

• Myth finding is that all cicada activity leads to severe plant collapse; Fact is that most landscapes experience only cosmetic damage

• Myth finding is that cicadas kill roots and underground tissues; Fact is that underground feeding by nymphs is a normal part of the life cycle and rarely causes long term problems

Regional Variations and Timing

Regional climate and habitat conditions influence when prairie cicadas emerge and how long they stay active. In some prairie counties, the emergence may begin in late spring and continue into mid summer. In other areas, emergence can be shorter and align closely with the local warm season window.

Weather patterns such as drought or unusually cold springs can delay or shorten cicada activity. Gardeners across different regions should observe their local patterns and adjust their landscape management accordingly. Understanding these variations helps reduce misinterpretation of cicada activity as a broad threat.

Conclusion

Prairie cicadas do interact with trees and other plants through feeding and egg laying, but they rarely cause lasting damage to healthy trees. The most common effect is cosmetic twig injury to young or stressed plants, which is usually reversible with proper care. By recognizing the natural role of cicadas and implementing simple management steps, homeowners can protect valuable landscape specimens while supporting the ecological benefits that cicadas provide to prairie ecosystems.