Elm seed bugs are relatively harmless to trees because they consume the seeds only, but elm leaf beetles consume leaves, which skeletonizes the foliage. This can make it more difficult for trees to take in the nutrients they need, which leaves them vulnerable to more serious issues. Elm leaf...
Lower population levels of leaf miners are easily controlled by simple removal of the affected leaves. The larvae do their damage but are stuck inside that leaf until they are done eating and are ready to pupate. They can’t run away. Interrupt their dinner by simply removing the leaf and ...
Native to the American Midwest, primarily the Ohio River Valley, the shingle oak (Quercus imbricaria, zones 5 to 8) has unlobed leaves unlike other oak leaf types, making it one of the easiest species to identify. The narrow, oblong-shaped leaves are a glossy dark green with smoo...
While doing monitoring checks, you can either squish the ends of any trails to kill the larvae, or you may remove and destroy leaves with visible eggs or tunnels. Cover susceptible crops with arow covermade from a fine mesh material, such as cheesecloth. ...
Galls are growths that occur when the chemicals from certain insects and trees interact to form swollen areas. These galls can occur on any part of a quaking aspen tree, but they most often occur on the twigs, leaves and leaf buds. Many insects cause gal
Notably, leaves may also show indications of distortion—exuding sap or displaying fungal infestation Why Should You be Concerned? Not only do sick trees pose a challenge to themselves, but most significantly, they’re a danger to humans as well. In their delicate state, the likelihood of the...
The leaves of red and white oak trees Oak tree acorn differences Oak tree bark differences When one comes across anoak tree(Quercus spp.), most canidentifywhat it is compared to other trees, but many don't know that there are a variety of oaks. Not only can it be difficult to...
nearly 200 different species, the Forest Preserves of Cook County provides plenty of opportunities to check out trees. Many people first learn to identify trees by using their leaves, but how can you determine what species of tree you’re looking at once they have lost their leaves in the ...
of Agriculture plant hardiness zones 5 through 9. Fox, summer and riverbank grapes are hardy in USDA zones 6 through 9, 3 through 7 and 3 through 9, respectively. You can easily identify wine and wild grapevine leaves, even in the absence of grapevine fruit, because they have a number ...
When it comes to the most common North American trees, the red alder is number one. Also known as Alnus rubra, its Latin name, this deciduous tree can be identified by oval-shaped leaves with serrated edges and a defined tip, as well as rust-red bark. Mature red alders range from abou...