In recent reports from Placer County, several areas in Northern California have observed a surge in unusual locust or grasshopper activity over the past week.

Species Identification

The species identified is the short-horned Melanoplus grasshopper, belonging to the locust family. These grasshoppers are characterized as large, robust, and long-winged, and have been sighted in regions including Roseville, Lincoln, and West Placer.

Behavior and Habitat

Experts note that when natural food sources become scarce, these grasshoppers migrate to surrounding areas and neighborhoods in search of sustenance. Melanoplus grasshoppers have a diverse diet, feeding on various plants such as lettuce, beans, corn, carrots, onions, as well as residential landscaping and annual flowers.

Population Dynamics

While these grasshoppers may have gone unnoticed in previous years by hiding in soils, warm weather coupled with abundant food production has led to a significant increase in their populations. Severe outbreaks are cyclical, occurring every eight to ten years and lasting for multiple years.

Control and Prevention

Placer County authorities emphasize the limited options for controlling large populations of these grasshoppers once they have infiltrated residential areas. While covering plants with screens or cloths can offer some protection, hungry grasshoppers may still manage to consume through such barriers. Metal window screens are recommended for their resistance to grasshopper mouthparts.

Collaborative Efforts

Multiple organizations, including the Placer County Agricultural Commissioner, UC Urban and Community Integrated Pest Management Area Advisor, UC Master Gardeners of Placer County, Placer Mosquito and Vector Control District, and the cities of Roseville and Lincoln, are collaborating to address frequently asked questions and monitor pest-related issues.

Conclusion

The recent surge in grasshopper activity in Northern California highlights the importance of vigilance and collaboration in managing pest outbreaks. By staying informed and implementing appropriate preventive measures, residents can mitigate the impact of these invasive species on local vegetation and landscapes. Stay updated on local news and advisories through The Local News App for ongoing developments and tips on pest management strategies.

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