Trees and shrubs, much like their animal counterparts, can become infested with insects and other pests. Stevens Tree Specialists has solutions for these problems

Some of these pests require spraying while others require injections into the tree itself. has the solution you require.

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The Elm Spanworm is the larval stage of a moth. An infestation of these can leave the tree canopies in tatters. In addition to elms, they will also attack hickory, oak, maple, beech, and ash.


The Emerald Ash Borer larvae attack under the bark. An infestation will eventually kill upper limbs and the tree trying to survive will sprout newer limbs around its' base.

tree damage 2

Cankerworms are caterpillars that feed primarily on the leaves of American elms, Manitoba maple and Green ash in May and June.

cankerworm damage

These tent caterpillars will emerge from their nests in the spring and start eating all the leaves they can find. The damage they do is very similar to that of the cankerworm above.

tent cat

Aphids attack nearly all species of plants. When leaves are attacked by aphids, damage often appears first as spotty yellow discolorations, usually on the undersides of leaves; the leaves may later dry out and wilt.


Spruce budworm is the most destructive pest of spruce and fir forests in North America. Spruce budworm feeds primarily on balsam fir and white spruce.



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