If you find sticky, amber-colored droplets on your pear tree, your tree could be infected with fire pear blight, a bacterial disease caused by Erwinia amylovora. Unfortunately, this pathogen can ...

Srdjan Acimovic, an assistant professor at Virginia Tech University, shaves away bark to examine the spread of fire blight in a pear tree branch at Oregon State University’s Southern Oregon Research ...

Q: I have an apple tree that has some curled leaves and also has several limbs that have died back. The new growth at the ends of the limb are almost black in color. A: This sounds like your tree has ...

If you are noticing droopy, dried-out flower clusters on your pears, Asian pears, quince, apples or crabapples, fire blight may be the cause. Fire blight is caused by a bacterium and is a common and ...

If you are noticing droopy, dried-out flower clusters on your pears, Asian pears, quince, apples or crabapples, fire blight may be the cause. Fire blight is caused by a bacterium and is a common and ...

This column is written by the Master Gardeners of Yolo County each month. It provides answers to selected questions that recently came into the UCCE Master Gardener – Yolo County Help Desk. Question: ...

Apples, pears, crabapples and even some ornamentals are infected by fire blight, a destructive bacterial disease. Fire blight damage is noticeable when infected leaves suddenly turn brown, as if ...

A Purdue University botanist says a potentially devastating tree disease linked to this spring's late freezes is damaging hundreds of ornamental trees throughout Indiana. Purdue associate professor of ...

Oswego may have to dig up about 1,600 Callery pear trees in the village because they are aging and susceptible to disease, officials said. The trees are also considered invasive, meaning they have a ...

Plant two pear varieties for best pollination. The flowers of most pear varieties can't pollinate themselves. Instead, they must cross-pollinate with a different variety to develop fruit. A different ...