Many gardeners are familiar with chlorosis, a nutrient deficiency that affects the production of chlorophyll, the green pigment found in leaves. The symptoms are fairly easy to recognize: pale green ...

From your description, it’s likely your tree is suffering from chlorosis, which is a yellowing of green leaves due to a lack of chlorophyll. Symptoms of chlorosis could appear in a few branches or the ...

Be on the lookout for chlorosis problems in your maple trees. Last year in mid-July a reader inquiry prompted me to look into an abundance of maple trees with yellow leaves. Careful inspection of some ...

Abiotic problems can be just as hazardous to plant life as disease and insect pests. Last week I wrote about the widespread concern over fungal rust in ash trees. This week’s popular question focuses ...

Pin oak, birch and other plants may exhibit yellowish leaves by early summer. A closer examination of these leaves may show while most of each leaf is yellowish-green, the veins are still green. This ...

Recently I checked my answering machine to find this message "What is happening to all the maples in Sioux City? They are yellow and little crumbs of sawdust are on the patio furniture." My initial ...

It’s still a touch too early for fall color, but some of our landscape trees are certainly changing and it’s not a good thing. While this change in color at this time of year isn’t something ...

Yellowing plants is usually due to a lack of iron. We refer to this as iron chlorosis. Iron could be lacking in some Idaho soils. However, this is not usually the case. Iron is an element commonly ...