| Apple | aphids, plum curculio, tarnished plant bug, European apple sawfly, apple maggot, codling moth, leafhoppers, leafrollers, leafminers, European red mite, two-spotted mite, oystershell scale, gypsy moth, eastern tent caterpillar |
| Arborvitae | arborvitae leafminer, bagworms, spruce spider mite, juniper scale, Fletcher scale |
| Azalea | azalea bark scale, azalea leafminer, azalea whitefly, black vine weevil, lace bugs, rhodendron borer |
| Beech | woolly beech aphid, beech bark scale, cankerworms, twolined chestnut borer |
| Birch | aphids, birch leafminer, bronze birch borer, cankerworms, birch sawflies, fall webworm, European hornet |
| Bittersweet | euonymus scale |
| Boxwood | boxwood leafminer, oystershell scale, boxwood psyllid |
| Cedar | bagworm, spruce spider mite |
| Cotoneaster | lace bug, oystershell scale, Eastern tent caterpillar |
| Dogwood | dogwood borer, oystershell scale, dogwood sawfly |
| Euonymus | euonymus scale |
| Fir | balsam twig aphid, balsam gall midge, spruce spider mite |
| Flowering fruits (Cherry, Peach, Almond) | aphids, European red mite, fall webworm, peach tree borer, oystershell scale, pear slug, two-spotted spider mite, leafrollers |
| Hemlock | elongate hemlock scale, hemlock eriophyid mite, spruce spider mite, hemlock woolly adelgid, black vine weevil, hemlock looper, gypsy moth |
| Holly | holly leafminers |
| Honeysuckle | clover mite |
| Honey locust | honey locust mite, honeylocust pod gall midge, plant bug |
| Juniper | arborvitae leafminer, juniper scale, juniper webworm, spruce spider mite |
| Larch | larch casebearer, larch sawfly, woolly larch adelgid |
| Lilac | European hornet, lilac borer, lilac leafminer, oystershell scale, white peach scale |
| Linden | aphids, Japanese beetles, lace bugs, two-spotted spider mite |
| Magnolia | magnolia scale |
| Maple | aphids, maple gall mite and rust mite (eriophyids), twig pruner, woolly maple scale |
| Mountain ash | European red mite, mountain ash sawfly, lace bug, pear slug |
| Mountain laurel | black vine weevil, mulberry whitefly, rhododendron borer, rhododendron stem borer |
| Oak | gypsy moth, kermes oak scale, lecanium scale, oak leaf gall, oak skeletonizer, twig pruner, two-lined chestnut borer, oak leafroller, oak leaftier |
| Pachysandra | euonymus scale |
| Pine | aphids, European pine shoot moth, pales weevil, pine bark adelgid, pine eriophyid mites, pine needle scale, pine sawflies, pine false webworm, spruce spider mite, white pine aphid, white pine weevil, spittlebugs |
| Privet | privet rust mite (eriophyid), white peach scale |
| Rhododendron | azalea bark scale, azalea whitefly, black vine weevil, European hornet, lace bugs, rhododendron borer, rhododendron gall midge, two-banded Japanese weevil |
| Rose | aphids, Japanese beetle, leafhoppers, rose chafer, rose slug, scales, two-spotted spider mite |
| Spruce | Cooley spruce gall aphid, eastern spruce gall aphid, spruce budworm, spruce bud scale, white pine weevil |
| Taxus | black vine weevil, taxus mealybug, ants, termites |
| Viburnum | scale s, snowball aphid, tarnished plant bug, thrips |
The information in this material is for educational purposes. The recommendations contained are based on the best available knowledge at the time of printing. Any reference to commercial products, trade or brand names is for information only, and no endorsement or approval is intended. The Cooperative Extension system does not guarantee or warrant the standard of any product referenced or imply approval of the product to the exclusion of others which also may be available.All agrochemicals/pesticides listed are registered for suggested uses in accordance with federal and Connecticut state laws and regulations as of the date of printing. If the information does not agree with current labeling, follow the label instructions. The label is the law.Warning! Agrochemicals/pesticides are dangerous. Read and follow all instructions and safety precautions on labels. Carefully handle and store agrochemicals/pesticides in originally labeled containers immediately in a safe manner and place. Contact the Connecticut Department of Environmental Protection for current regulations.The user of this information assumes all risks for personal injury or property damage.Issued in furtherance of Cooperative Extension work, Acts of May 8 and June 30, 1914, in cooperation with the U.S. Department of Agriculture. Kirklyn M. Kerr, Director, Cooperative Extension System, The University of Connecticut, Storrs. The Connecticut Cooperative Extension System offers its programs to persons regardless of race, color, national origin, sex, age or disability and is an equal opportunity employer.