If plants were capable of expressing emotions similar to humans, area mesquite trees might literally turn green with envy and become jealous of another area leguminous tree species. This inhabitant of ...

We are fortunate because food security is not an issue for most North American residents. The United States exports or feeds much of its cereal grain — for example, corn, barley, rice, and wheat, and ...

Q: I have an area about 15 feet by 12 feet that is bordered on two sides by sidewalk on the south side of my house. I have an 8-year-old thornless mesquite tree planted in this area. I am worried ...

Q : Recently I noticed, on two mesquite trees, a tarry-looking seepage coming out, and in some cases dripping onto the ground. What is it, and what if anything should be done about it? The only thing ...

Below the red-tile roofs of the Catalina Foothills, an affluent area on the north end of Tucson, Arizona, lies a blanket of desert green: spiky cacti, sword-shaped yucca leaves, and the spindly limbs ...

From above, the Southwestern U.S. is a sea of caramel and brown desert. Yet, a closer look uncovers small ribbons of green – desert forests that flourish along valuable springs and rivers. Wildlife ...

Chase Choate beamed as he explained the plan for the morning. The goal was to plant 700 trees before noon. The cottonwoods and willows, Choate said, would be pretty straightforward. The honey mesquite ...

Before she showed off her leggy prowess to Reid Park Zoo visitors in Tucson, a young giraffe decided she wanted a treat from a tree outside her enclosure. Nancy Kluge, Reid Park Zoo's president and ...