| Insect Species | |
| Scientific Name & Common Name (if any) | Insect Family |
| Agrilus crataegi (Hawthorn Agrilus) | Buprestidae (Metallic Wood-Boring Beetles) |
| Chrysobothris femorata* (Flat-Headed Appletree Borer) | Buprestidae (Metallic Wood-Boring Beetles) |
| Saperda candida* (Round-Headed Appletree Borer) | Cerambycidae (Long-Horned Beetles) |
| Saperda cretata* (Spotted Appletree Borer) | Cerambycidae (Long-Horned Beetles) |
| Saperda fayi* (Thorn-Limb Borer) | Cerambycidae (Long-Horned Beetles) |
| Xylotrechus convergens* | Cerambycidae (Long-Horned Beetles) |
| Crepidodera violacea | Chrysomelidae (Leaf Beetles) |
| Anthonomus nebulosus (Hawthorn Blossum Weevil) | Curculionidae (Weevils) |
| Anthonomus quadrigibbus (Apple Curculio) | Curculionidae (Weevils) |
| Conotrachelus nenuphar (Plum Curculio) | Curculionidae (Weevils) |
| Glyptobaris lecontei | Curculionidae (Weevils) |
| Rhynchaenus pallicornis (Apple Flea Weevil) | Curculionidae (Weevils) |
| Aphis pomi (Green Apple Aphid) | Aphididae (Aphids) |
| Carolinaia crataegi | Aphididae (Aphids) |
| Eriosoma crataegi (Woolly Hawthorn Aphid) | Aphididae (Aphids) |
| Eriosoma lanigera (Woolly Apple Aphid) | Aphididae (Aphids) |
| Nearctaphis bakeri (Clover Aphid) | Aphididae (Aphids) |
| Nearctaphis crataegifoliae | Aphididae (Aphids) |
| Tinocallis ulmifolii (Elm Leaf Aphid) | Aphididae (Aphids) |
| Prociphilus corrugatans | Aphididae (Aphids) |
| Rhopalosiphum insertum (Apple Grain Aphid) | Aphididae (Aphids) |
| Rhopalosiphum padi (Bird Cherry / Oat Aphid | Aphididae (Aphids) |
| Utamphorphora crataegi (Four-Spotted Hawthorn Aphid) | Aphididae (Aphids) |
| Balcanocerus crataegi | Cicadellidae (Leafhoppers) |
| Balcanocerus provancheri | Cicadellidae (Leafhoppers) |
| Eratoneura minor §§ | Cicadellidae (Leafhoppers) |
| Eratoneura rostrata | Cicadellidae (Leafhoppers) |
| Eratoneura spinifera | Cicadellidae (Leafhoppers) |
| Erythridula bitincta §§ | Cicadellidae (Leafhoppers) |
| Erythridula electa | Cicadellidae (Leafhoppers) |
| Erythridula funesta §§ | Cicadellidae (Leafhoppers) |
| Erythridula furcillata §§ | Cicadellidae (Leafhoppers) |
| Erythridula magnacalx | Cicadellidae (Leafhoppers) |
| Erythridula repleta §§ | Cicadellidae (Leafhoppers) |
| Erythridula rubens §§ | Cicadellidae (Leafhoppers) |
| Erythridula spatula §§ | Cicadellidae (Leafhoppers) |
| Erythroneura maculata | Cicadellidae (Leafhoppers) |
| Typhlocyba pomaria (White Apple Leafhopper) | Cicadellidae (Leafhoppers) |
| Ceresa bubalus (Buffalo Treehopper) | Membracidae (Treehoppers) |
| Glossonotus crataegi (Quince Treehopper) | Membracidae (Treehoppers) |
| Hadrophallus borealis | Membracidae (Treehoppers) |
| Heliria scalaris | Membracidae (Treehoppers) |
| Telamona monticola | Membracidae (Treehoppers) |
| Telamona tiliae (Basswood Treehopper) | Membracidae (Treehoppers) |
| Phenacoccus dearnessi (Hawthorn Mealybug) | Pseudococcidae (Mealybugs) |
| Blepharidopterus provancheri | Miridae (Plant Bugs) |
| Heterocordylus malinus | Miridae (Plant Bugs) |
| Lygidea mendax (Apple Red Bug) | Miridae (Plant Bugs) |
| Lygocoris univittatus | Miridae (Plant Bugs) |
| Plagiognathus dispar | Miridae (Plant Bugs) |
| Taedia pallidula | Miridae (Plant Bugs) |
| Taedia scrupea | Miridae (Plant Bugs) |
| Brochymena quadripustulata (Four-Humped Stink Bug) | Pentatomidae (Stink Bugs) |
| Corythucha cydoniae (Hawthorn Lace Bug) | Tingidae (Lace Bugs) |
| Lasioptera excavata** | Cecidomyiidae (Gall Flies) |
| Rhizomyia absobrina | Cecidomyiidae (Gall Flies) |
| Rhagoletis pomonella § (Apple Maggot) | Tephritidae (Fruit Flies) |
| Profenusa canadensis** (Hawthorn Leafminer) | Tenthredinidae (Sawflies) |