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The traps are placed next to citrus leaves that the Asian citrus psyllid eats.

There are thousands of glue traps around Yuma County as part of an intensive effort to keep the Asian citrus psyllid – and the fatal tree disease it can carry – out of the state. The invasive species has already decimated citrus groves in Florida and has footholds in California and Mexico. Read more»

Boats tie up next to a bar along the Colorado River near Parker. Arizona Game and Fish Department is encouraging boaters to take education classes, wear life jackets and check equipment before embarking.

Arizona boating fatalities are the highest in five years, and officials say the economy may be a factor. Read more»

Lauren Carter, a ranger at Petrified Forest National Park, stands next to a pile of petrified wood that has been confiscated or returned.

Fighting theft at Petrified Forest National Park comes down to park employees manning entry and exit stations, rangers patrolling the grounds and volunteers tasked with persuading visitors to think twice before grabbing illegal mementos. Read more»

A mural honoring farm labor leader Cesar Chavez adorns a wall at the Santa Rita Center near downtown Phoenix. In the 1970s, Chavez used the center to stage a hunger strike against an Arizona law that curtailed the rights of farm workers.

The building where Cesar Chavez fasted to protest an Arizona law limiting the rights of farm workers has cleared another hurdle toward gaining federal recognition. Read more»

The namesake rock of Petrified Forest National Park.

The head of the Petrified Forest National Parks is quick to explain that the vistas stretching toward the Painted Desert hold hundreds of million years of history, from fossils of dinosaur ancestors to ancient dwellings. These days, however, his focus is increasingly on what’s beneath the wind-swept terrain. Read more»

Arizona has depleted its groundwater over the past 70 years enough to fill Lake Powell nearly three times, according to the first federal study of the state’s groundwater since the 1980s. Read more»

César Chávez

Nearly 40 years after the César Chavéz went on a hunger protest at the Santa Rita Center in Phoenix, it is among eight sites that could receive national historic recognition based on their connection to Chávez and the United Farm Workers movement he helped found. Read more»

The federal government declared the Chiricahua leopard frog a threatened species in 2002 after drought, disease, habitat destruction and non-native species reduced its population to a vulnerable size.

Chiricahua leopard frogs saved from flooding after the Monument Fire near Sierra Vista have been moved to a lush, indoor riparian habitat at Glendale Community College, complete with a waterfall, pool and a host of bugs. Read more»

State Sen. Steve Gallardo, D-Phoenix, speaks with reporters Thursday at the State Capitol. Gallardo says he wants U.S. Sen. John McCain, R-Ariz., to apologize for comments Gallardo contends blamed the massive Wallow Fire on illegal immigrants.

A day after two Arizona men were charged with starting the Wallow Fire, a Democratic state lawmaker accused U.S. Sen. John McCain, R-Ariz., of erroneously blaming the wildfire on illegal immigrants. Read more»

A remote-control camera captured this image of a black bear at Tonto National Monument in 2009.

The fatal black bear attack on a woman in Pinetop this summer is a sobering reminder that development is bringing people closer to a creature that’s shy by nature but a predator at heart. Read more»