Purdue Landscape Report: Christmas tree growers have been struggling with an invasive scale pest called Cryptomeria scale (Aspidiotus cryptomeriae), which is a serious pest of conifers. The scales ...

Based on the photo we have sent, what is wrong with our oak tree? Is there something that we should be doing to ensure its health? — Mitchell and Anna Jones, Libertyville From your photo, I can see ...

Q: I have a mature palo verde tree in my back yard that has what appear to be some kind of white scale on the trunk and several main branches — it almost looks like cement or mortar. On some of the ...

Q: Our young and once healthy peach trees have been appearing less than healthy as the summer has progressed. They are producing fruit, but I first noticed the black things on the bark that I thought ...

(WPBN/WGTU)-- Lecanium scales are affecting a lot of oak and maple trees in Otsego, Crawford and Roscommon counties, the Michigan Department of Natural Resourses says. The DNR field offices have ...

My magnolia had a problem with magnolia scale last year. Will it come back, and should I take some action to protect my tree? The leaves were covered in a black mold late last summer. — Frank Butler, ...

TRAVERSE CITY — Snow-covered trees are the stuff of winter wonderland lore, but a white waxy residue on beech tree bark is the sign of what’s becoming a tragic story. Another invasive pest, the beech ...

WASHINGTON — Crape Myrtle trees are found all over the DMV. They boast beautiful blooms and are a staple of many landscapes. But little white critters, called bark scale, are threatening the trees.

We see it all in the Plant Clinic, and this summer we’ve been seeing a lot of Acanthococcus lagerstroemiae or crapemyrtle bark scale. This invasive insect from southeast Asia first appeared in the ...

A scale insect infestation is a sign that a tree is in poor health, making it susceptible to the tiny insects. Pixabay photo Scale insects are sneaky little devils that often go unnoticed by gardeners ...

We have a lime tree that we winter indoors. In March, the tree developed about 60 limes. Also during that time, the tree developed scale insects. We purchased a nontoxic solution, which somewhat ...