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… ...

"Stink bugs, in particular the brown marmorated stink bug, can be devastating to tree fruit,” says Blaauw. These pests feed ...

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.

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.

Things we can do to help prevent this disease: check your black walnut trees for signs of this disease: report any dead or declining walnut trees to 1-866-NO-EXOTIC (1-866-663-9684); don’t move ...

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 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.

Minnesota is acting to protect millions of black walnut trees from a pest that has already caused trouble in several other states.

Small insects called weevils that emerged from two stressed trees at a black walnut plantation in southern Indiana’s Brown County were found to be carrying the fungus that causes thousand ...

In black walnut trees, Geosmithia morbida causes an ugly infection characterized by dozens of small lesions that cluster together into larger cankers, killing the tree's vital cambium tissue, a ...

The venerable black walnut trees have so far escaped the blights, insects and droughts that have all but destroyed some other local species. Black walnut shells are a common presence in Native ...