Updated: July 6, 2025

Cicada killer wasps (Sphecius speciosus) are fascinating yet intimidating insects native to North America. Known for their large size and distinctive buzzing, these wasps can often cause concern for homeowners when they appear in gardens or yards. Understanding what foods attract cicada killer wasps to your area is essential for managing their presence safely and effectively.

In this article, we will explore the dietary habits of cicada killer wasps, the specific types of food that draw them to residential areas, and practical tips for minimizing unwanted visits from these impressive yet misunderstood insects.

Understanding Cicada Killer Wasps

Before diving into what foods attract cicada killer wasps, it’s important to understand their biology and behavior.

Life Cycle and Behavior

Cicada killer wasps are solitary wasps, not social like yellow jackets or hornets. Females dig burrows in sandy or loose soil and hunt cicadas to provision their nests. Each burrow houses a single female with multiple chambers where she places paralyzed cicadas as food for her larvae.

The wasp’s life cycle is closely tied to cicadas, which are their primary prey. Adult females hunt cicadas by stinging and paralyzing them, then dragging them back to the burrow to feed their offspring.

Appearance

These wasps are large—about 1.5 to 2 inches long—with a reddish-brown thorax and yellowish-orange stripes on their abdomen. Their size alone often causes alarm among people unfamiliar with them, but despite their intimidating look, cicada killers are generally non-aggressive toward humans.

What Do Cicada Killer Wasps Eat?

Understanding the dietary preferences of cicada killer wasps helps explain what attracts them to certain areas.

Adult Food Sources

Adult cicada killer wasps primarily feed on nectar from flowers. They do not consume meat themselves; instead, they hunt cicadas solely to provide food for their larvae.

Nectar provides essential carbohydrates that fuel the adults’ energy-intensive flight activities during mating and hunting.

Larval Food Sources

The larvae feed exclusively on paralyzed cicadas that adult females drag into their nests. This protein-rich diet allows the larvae to develop properly before pupating and emerging as adult wasps.

What Foods Attract Cicada Killer Wasps?

Since adults rely on nectar and hunt cicadas for their larvae, both nectar sources and the presence of cicadas can attract cicada killer wasps. Below we outline the key food-related factors that draw these wasps to an area.

1. Nectar-Producing Flowers

Adult cicada killers are attracted to gardens or landscapes featuring abundant nectar-producing flowers. Some common nectar sources include:

  • Goldenrod (Solidago spp.): This late-season bloom is a favorite among many pollinators, including cicada killers.
  • Milkweed (Asclepias spp.): Known for attracting butterflies, milkweed also produces ample nectar favored by many wasp species.
  • Echinacea (Coneflower): Its prominent nectar-rich flowers attract a variety of pollinators.
  • Joe-Pye Weed (Eutrochium spp.): A tall perennial that produces sweet nectar.
  • Lantana: Frequently planted in warm climates for its colorful blooms and rich nectar supply.

If your yard has abundant flowering plants with accessible nectar, it becomes a prime feeding ground for adult cicada killers.

2. Abundance of Cicadas

Female cicada killers require a steady supply of cicadas near their nesting areas to provision their nests. Areas with large populations of periodical or annual cicadas become attractive hunting grounds.

Common signs that indicate a high abundance of cicadas include:

  • Loud buzzing and chirping noise typical during summer months.
  • Presence of empty exoskeletons on trees or fences.
  • Sightings of actual adult cicadas resting on vegetation or flying nearby.

If your property is located near wooded areas or mature trees favored by cicadas, you may unwittingly be creating an environment attractive to female wasps searching for prey.

3. Sweet Human Foods and Drinks

While not a natural food source per se, adult cicada killers can sometimes be attracted by sugary human foods and beverages such as:

  • Soft drinks or fruit juices left uncovered outdoors.
  • Overripe fruit dropping on the ground or left in compost piles.
  • Sweets such as candy or desserts consumed outside.

Though these sugary items are not preferred sources like floral nectar, they can occasionally attract adult wasps searching for quick energy sources during hot weather conditions when other nectar may be scarce.

Environmental Conditions That Influence Food Availability

Certain environmental factors influence what foods are available and thus affect how many cicada killer wasps may visit your area:

Warm Weather and Summer Months

Cicada killer activity typically peaks during warm summer months when both adult flowers are blooming and periodical/annual cicadas emerge in large numbers. The availability of both food sources aligns perfectly during this season.

Soil Type and Nesting Sites

Well-drained sandy or loose soil is ideal for nesting females. Areas with exposed soil patches near flowering plants increase chances that female wasps will nest close by if enough food resources (nectar plus cicadas) exist nearby.

Proximity to Trees and Woodlands

Because cicadas generally inhabit trees—especially mature hardwoods—the presence of these trees near your yard increases the likelihood that female wasps will find sufficient prey nearby for provisioning nests.

How to Manage Cicada Killer Wasps in Your Area

If you want to reduce the attraction of cicada killer wasps around your home without harming beneficial insects overall, consider these steps:

1. Limit Nectar Sources Near Living Spaces

While flowers are essential for many pollinators, concentrating highly attractive nectar-producing plants away from patios or high-use areas can help reduce direct encounters with these large wasps.

2. Remove Overripe Fruit Promptly

Clear fallen fruit or compost regularly to prevent attracting adult wasps looking for sweet treats beyond natural flower nectar.

3. Cover Sweet Drinks Outdoors

Keep soft drinks or fruit juices covered when eating outside to avoid drawing adult wasps seeking sugar sources.

4. Manage Cicada Populations Indirectly

While controlling wild cicadas is difficult due to their life cycles, pruning dead branches or removing weak trees can reduce local populations somewhat over time by limiting suitable habitat.

5. Fill Bare Soil Patches Near Home Foundations

Since females prefer bare ground near vegetation for nesting, filling patches of loose sandy soil with mulch or grass can discourage digging near patios or doorways where encounters with humans are more likely.

When Should You Be Concerned?

Despite their alarming size and appearance, female cicada killers rarely sting unless directly provoked by handling or being trapped against bare skin. Males do not have stingers at all but may buzz aggressively around people as territorial behavior without attacking.

They serve an ecological role controlling cicada populations while pollinating flowers as adults feed on nectar. For most people, tolerating a low number of these impressive insects is safer than attempting aggressive control methods that could harm beneficial pollinators or other wildlife.

However, if large numbers appear near heavily trafficked outdoor living spaces causing safety concerns—particularly if children or pets are present—consulting local pest management professionals about humane control options may be warranted.

Conclusion

Cicada killer wasps are drawn primarily by two types of food sources:

  • Nectar-producing flowers that provide energy for adults.
  • Abundant populations of cicadas which females hunt to provision nests for larvae.

Additional attraction from sugary human foods can occur but is less significant compared to natural nectars and prey availability.

Understanding what foods attract these striking insects helps homeowners make informed landscaping choices and manage situations where they become unwelcome neighbors while preserving the beneficial roles these large solitary wasps play in ecosystems.

By balancing flower planting locations, reducing sugary outdoor exposures, managing soil conditions around homes, and tolerating the presence of cicada killers where possible, residents can coexist safely alongside one of nature’s most remarkable insect predators.

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