Japanese black pine (Pinus thunbergii) is an incredibly striking, hardy tree with iconic long needles and asymmetrical form, ...

You may notice a pine sawfly on your pine trees this spring or summer. The pesky creatures are more disturbance than damage, but The News Tribune has gathered advice on what to do about them.

You may notice a pine sawfly on your pine trees this spring or summer. The pesky creatures are more disturbance than damage, but The News Tribune has gathered advice on what to do about them.

The female sawfly will split a pine needle open and ... If left alone, the bugs defoliate pine trees, but if about 20 percent of the pine needles remain on a tree, it likely will survive, Hanavan ...

Red-headed pine sawfly larvae have red heads as the name indicates but has a yellow body with black spots. Pine sawfly adults typically lay groups of eggs so multiple larvae hatch and feed in groups.

Ash sawfly larvae have devastated ash trees from Belfast to County Meath. An invasive species of insect is putting ash trees in Northern Ireland under threat, ecologists have warned.

He told BBC News NI the sawfly was compounding already disastrous effects of ash dieback. "As you look around you'll notice that not only do the ash trees not have any leaves on them, but some of ...