An insect-fungus is damaging thousands of black walnut trees not only in California and other western states, but has now spread to Pennsylvania, Tennessee and Virginia, according to a just-publish… ...

A fungus-carrying beetle is infecting black walnut trees in Boulder and other cities with “thousand cankers disease,” a devastating affliction that starves the trees. The city of Boulder has ...

A few of Indiana's tiniest transplants — invasive worms, moths and beetles from overseas — have made massive changes to Indiana's ecosystems over the past several decades.

About 17.7 million board feet of black walnut valued at about $21.4 million is harvested annually in Indiana, the agency said. Losing the state’s black walnut trees to the fungus would deliver a ...

This fungal disease is spread by a small twig beetle, eventually leading to the death of infected trees. Thousand cankers disease has been found in many western states. The Indiana Department of ...

The walnut twig beetle is as small as a grain of rice, but healthy walnut trees can be quickly felled by the disease it spreads: thousand cankers disease. Tiny pests represent big threat to Kansas ...

In black walnut trees, Geosmithia morbida causes an ugly infection characterized by dozens of small lesions that ... 80,000 oak trees in San Diego County. The bug's larvae bore their ...

Depending on the species, they may be black, gray, white, red, yellow, green, blue-green, blue, purple, brown, and tan. Some aphids are generalists feeding on many kinds of plants and some are ...

Minnesota is acting to protect millions of black walnut trees from a pest that has already caused trouble in several other states. The state Agriculture Department placed a quarantine this week on ...

The insects cause serious damage by feeding on over 70 species of plants – causing oozing sap, wilting, leaf curling and dieback in trees, vines, crops and other plants.