Plant Disease

Tomatoes are one of the most commonly grown vegetables in home gardens. While tomatoes are relatively easy to grow, there are a few diseases you should keep your eye out for. Three of the most common diseases people encounter are early blight, Septoria leaf spot, and anthracnose. All of these...

As the autumn leaves fall from our trees, the trunk and branching structure become more prominent and visible. This transformation can add new dimensions and interest to a landscape, but it can also draw our attention to tree health challenges we might have overlooked in other seasons. As we...

If there is one certainty for all humans is that we are drawn to natural elements. Two of the best examples are how we can become transfixed when looking at fire or water. Scientists have studied this effect and shown that our brains reduce stress chemicals when we are staring at a fire, water, or...

For the most part, we think of fungal infections as undesirable and cause adverse effects on plants. Fungal pathogens can destroy crops, weaken and deform plant parts, or kill the host plant entirely. Fungal pathogens cause billions of dollars of economic loss annually. Within this context, as we...

We are stuck with the trees planted by those who came before us. At least I am at my house. Mostly because they are so expensive to cut down. One species I am left dealing with is Norway maple (Acer platinoides).Am I referring to the maple with purple leaves? Yes, that maple. The original...

An orange lawn? You’re walking through your lawn. You notice some discoloration in patches, but it doesn’t seem too alarming. After walking in your front door you begin to slip off your shoes and notice they’ve been turned an orange-red color. You’d swear it looked like your shoes were rusted-over...

Purple coneflower (Echinacea purpurea) is among the most widely planted native plants in yards and gardens. They are long-blooming plants that produce domed flowers with orangish-brown spiny centers and drooping lavender petals. Occasionally their flowers will become green and distorted,...

Peonies are a common sight in many yards. They are typically grown for their showy blooms in the spring but also have attractive foliage that can act as a backdrop in landscape beds. While peonies are relatively problem-free, a few diseases, powdery mildew and leaf blotch, show up fairly regularly...

Hollyhocks (Alcea rosea) have been growing in gardens for centuries and remind many of us of our parents’ or grandparents’ gardens. Despite being ‘old-fashioned,’ hollyhocks have had a bit of a resurgence in recent years. Their tall, stately flowers are an impressive sight in the garden....

The problem with many plant diseases is once you notice them it’s often too late. That’s especially true with our trees. We often don’t gaze at the canopies of our trees looking for problems. The typical homeowner won’t notice disease or insect damage until visible symptoms surpass 10 percent of...