After experiencing one of the worst (coldest / snowiest) winter in 100+ years of record keeping in Northern Illinois many people are asking me about their brown (orange) evergreen plants. I have personally inspected dozens of plants in the last couple of weeks. I have seen winter burn on a number of different species of … Read More “Winter Burn on Evergreen Bushes & Trees”
Control Methods: Treating aphids can sometimes be tricky since they have become resistant to many different insecticides. It is also vital that any sprays are applied to both the tops and bottoms of each leaf. Here are the effective treatment options for Aphids: *Organic* Option A (Wasco Nursery’s Preferred Method): Neem Oil can be sprayed on … Read More “Aphid Treatment”
Anthracnose Treatment – Info / Symptoms: Anthracnose is a fungal disease caused by several different fungi that are closely related. All of the fungi are generally host-specific, meaning they can only affect one type of tree. The disease spreads in spring when it is cool and wet. The effect on an infected tree can vary, … Read More “Why Do My Maple Leaves Have Spots? | Anthracnose Info & Treatment”
Cedar Quince Rust Info / Symptoms: Cedar-apple rust, cedar-hawthorn rust, and cedar-quince rust are closely related rust diseases that require two hosts to complete their life cycle. All three rusts can infect most varieties of eastern red cedar as well as many other junipers and an alternate host. Cedar-quince rust has the broadest host range … Read More “Orange Rust on Crabapple and Serviceberry | Cedar Quince Rust Treatment”
Apple Scab Info / Symptoms: If you have a flowering crabapple or fruit-bearing apple tree that flowers and leaves out fully in the spring but then starts shedding its leaves in the early summer, your tree may have apple scab. Although apple scab is not fatal in and of itself, it can weaken your tree … Read More “Spots on Crabapple Leaves | How to Treat Apple Scab”
Magnolia Scale Info / Symptoms: Magnolia Scale is one of the largest scale insects in Illinois reaching up to a half of an inch in length. It can also be fairly difficult to treat large infestations. Magnolia Scale will overwinter on twigs on the tree, then start to feed and enlarge throughout spring. Female scale … Read More “Magnolia Scale Treatment”
