Pestilence News

New invasive pest in Texas is destroying grasses and pasture

Mealyworm is small but damaging.

TAMU

Texas Agriculture Commissioner Sid Miller has issued an urgent alert to farmers to inspect their pastures for a newly detected and highly damaging pest: the pasture mealybug (Helicococcus summervillei).

According to a release from the Department of Agriculture (TDA), this invasive species, never before reported in North America, has been confirmed in multiple Texas counties and is already causing significant damage to pasture acreage across the southeast portion of the state.

The pasture mealybug causes “pasture dieback,” leaving expanding patches of yellowing, weakened, and ultimately dead turf.

This pest was first detected in Australia in 1928; its first detection in the Western Hemisphere occurred in the Caribbean between 2019 and 2020.

The TDA is working with Texas A&M AgriLife Extension and USDA’s Animal and Plant Health Inspection Service (APHIS) to coordinate a rapid response and protect Texas producers.

Mealybug history
Although the mealybug is just now being spotted, researchers suspect it may have been introduced before 2022.

Since mid-April 2025, southern Texas pasture and hay producers have been reporting problems in their fields. These fields show grass patches becoming brown or necrotic, or patches that are completely dead. Originally, it was presumed that symptoms were caused by another mealybug called the Rhodes grass mealybug, which has been reported in the U.S. since 1942. However, further investigations confirm that it's this new pasture mealybug (Heliococcus summervillei).

It has devastated millions of acres of grazing land in Australia and has since spread globally. Its rapid reproduction, hidden soil-level feeding, and broad host range make it a significant threat to pasture health and livestock operations.

MealybugTAMU

Adult females are approximately 2-5 mm long, covered in a white, waxy coating. They are capable of producing nearly 100 offspring within 24 hours, resulting in several generations per season. While adult females can live for up to 100 days, most damage is inflicted by the youngest nymphs, which feed on plant sap and inject toxic saliva that causes grass to yellow, weaken, and die.

“This is a completely new pest to our continent, and Texas is once again on the front lines,” Commissioner Miller says. “If the pasture mealybug spreads across Texas grazing lands like it has in eastern Australia, it could cost Texas agriculture dearly in lost productivity and reduced livestock capacity. TDA is working hand-in-hand with federal and university partners to respond swiftly and protect our producers from this unprecedented threat.”

Houston has a problem
The estimated impact area currently covers 20 counties, primarily in the Houston area, including: Cameron, Hidalgo, Willacy, Refugio, Calhoun, Victoria, Goliad, Dewitt, Lavaca, Fayette, Jackson, Matagorda, Brazoria, Galveston, Wharton, Colorado, Austin, Washington, Burleson, Brazos, and Robertson. AgriLife entomologists have submitted a formal Pest Incident Worksheet documenting significant damage to pastures and hayfields in Victoria County.

Research trials are underway to determine the best integrated pest management options. Currently, there is no known effective labeled insecticide for pasture mealybug.

Affected plants include: Bermudagrass, Bahia grass, Johnsongrass, hay grazer (sorghum–sudangrass), St. Augustine grass, various bluestem species, and other tropical or subtropical grasses. Damage can occur in leaves, stems, and roots.

Symptoms:

Yellowing and discoloration of leaves within a week of infestation
Purpling or reddening of foliage
Stunted growth and drought stress despite rainfall
Poorly developed root systems
Dieback starting at leaf tips and progressing downward
Premature aging, making plants more vulnerable to pathogens

How to spot it

Scout regularly for mealybugs on grass leaves, stems, soil surface, leaf litter, and under cow patties
Focus on unmanaged areas such as fence lines, ungrazed patches, and roadsides
Look for fluffy, white, waxy, or “fuzzy” insects on blades and stems
If plants appear unhealthy and insects match this description, investigate further

“Early identification is critical, and we need every producer’s eyes on the ground,” Commissioner Miller added. “We are working diligently with our federal and state partners to determine how to best combat this novel threat and stop it in its tracks.”

If you observe suspicious symptoms or insects matching the descriptions above, contact TDA at 1-800-TELL-TDA immediately.

nature

Park news

New I-35 deck park in southern Dallas moves closer to spring 2026 debut

Courtesy rendering

Renderings for Halperin Park.

A massive deck park spanning Interstate 35E in southern Dallas is set to open in late spring 2026. Called Halperin Park, the five-acre community space has been under construction since 2017 and will be completed in two phases:

Phase One (finishing in late spring) will include the section from Ewing Avenue to Lancaster Avenue and will feature a pavilion, amphitheater, playground area, interactive fountains, a second level overlooking the Dallas Zoo and the highway, and a large event room for every dining and special events.

Phase Two (to be completed over the next five years) will add the park section toward Marsalis Avenue, with an additional pavilion and extra gathering space.

The project is being developed by the Southern Gateway Public Green Foundation and built by the Texas Department of Transportation. Funding comes from the North Central Texas Council of Governments, as well as the private Halperin Foundation, which donated $23 million in 2024 and secured naming rights.

In January, the Dallas City Council approved spending up to $8 million to complete Phase One for spring completion.

The public-private initiative will create $1 billion in economy impact over the next five years, according to a study by UNT Dallas.

Rendering of Halperin ParkCourtesy rendering

A park with purpose
Developers say the park aims to integrate the west side of Oak Cliff, which was somewhat segregated with the construction of I-35 in Oak Cliff in the 1960s, leading to low-income communities and generational poverty.

The project started nine years ago, when the Texas Department of transportation planned a reconstruction of I-35 and began gathering neighbors’ feedback. The result was a plan to widen bicycle and pedestrian lanes in the service roads alongside the highway, and to build a deck over the highway between Ewing and Marsalis avenues, adjacent to the Dallas Zoo. (Similar Klyde Warren Park's "deck park" concept.)

While the project faced some skepticism at first, it later gained momentum as private supporters continued to join.

“Forty percent of the Dallas population lives in South Dallas, yet this segment only accounts for 15 percent of the tax base,” says April Allen, President and CEO of the Southern Gateway Public Green Foundation, citing the opportunity to address the economic equality in the area through the development of the park and all the business it can bring.

Rendering of Halperin Park.Courtesy rendering

Neighborhood pride
For Allen, this project is personal. The Toronto-born executive first moved to Dallas 22 years ago to work at Neiman Marcus, after getting her engineering degree in Canada and her MBA at Harvard. Oak Cliff felt like the right place for her as an intown neighborhood, with a confluency of cultures, local pride and an entrepreneurial spirit, as she describes it. Her first Realtor told her Oak Cliff was “not the right place for her." Instead of choosing a different neighborhood, Allen chose a new Realtor.

She has lived on the same street in North Cliff since, now raising her two kids with her husband, an Oak Cliff native, whom she credits for her further understanding of the neighborhood, its roots and civic dynamics.

Under Allen’s leadership, Halperin Park is focused on a community-first approach that provides support to the neighbors through programs around health and wellness, after-school activities, local food trucks and markets, and educational workshops to help expand homeownership and financial acumen.

To highlight the history and culture of Oak Cliff, they will feature an annual Walk of Fame, lifting up the stories of those who contributed to Oak Cliff history, with the first one happening as part of the inauguration of the park, organizers say.

They will provide their own 24-hour security team to ensure a safe place for families and kids, with clean and well-lit crosswalks.

Given their proximity with the zoo, parking will be available on the East side of the park at the zoo site, with a walkway to the park. They are working on parking options for the West side.

“We want to create a space for community growth and more business in the area," says Allen. "We are already seeing this come to life with projects such as East Dock, and we are excited for future investment that the park will bring."

parks