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Now is a good time to check on the health of your spruces, especially the blue spruces. You may be seeing discoloration, dieback and needle drop. If so, there’s a good chance it’s Rhizosphaera Needlecast.
Mites suck juices from the plants, causing them to look dull and unhealthy. Mites also cause plants to lose vigor so that they may be unable to overcome a severe infestation, resulting in the plant’s death.
The safest time to prune oaks is during winter, so avoid pruning or wounding the tree between mid-March and late June. During this time of year, insects such as leaf hoppers and spittlebugs can carry Bacterial Leaf Scorch (BLS) from tree to tree. They are attracted to the sap which flows freely from wounds.
Malus (apples & crabapples) – is a genus with a wide variety of species, varieties, and cultivars. Plants in this genus are generally very susceptible to a wide variety of pests and diseases including but not limited to: fire blight, scab, cedar-apple rust, aphids, etc.
Frisella Nursery is the ultimate destination for Japanese maples in the St. Louis area! Every year we hand select the best specimens from the country’s premier growers in Oregon and Washington. As of spring 2022 Frisella has over 60 cultivars in stock! Contact our garden center for more information. 636-798-2555 (option 4)
The dormant season is the best time of year to prune most trees because many diseases and insects that can potentially invade pruning cuts are also dormant. That being said, mechanical damage and improper tree care is often the main culprit for tree death. Here are some things to avoid killing your trees.
Red maples are a workhorse in the landscape providing texture, shade, and brilliant fall color. With so many new cultivars it’s easy to find the perfect tree for your unique site. Below are some great examples of old standby’s as well as some exciting new choices. There is a red maple suited for everyone!