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Holly (Ilex)-Holly leafminer Phytomyza ilicis See: Common Pests of Nursery Crops Pest description and crop damage This species of holly leafminer feeds only on English holly (Ilex aquifolium). The adult is a small, grayish black fly that emerges throughou ...

Holly (Ilex)-Leafroller Several species, including obliquebanded leafroller (Choristoneura rosaceana) Pest description and crop damage Green, smooth-body larvae feed on and web new growth in spring. Seldom abundant. Management-chemical control See: Chemic ...

Holly (Ilex)-Lecanium scale Lecanium spp. See: Common Pests of Nursery Crops Holly (Ilex) Lecanium scale ...

Honey locust (Gleditsia triacanthos)-Honey locust plant bug Blepharidopterus (Diaphnocoris) chlorionis Pest description and crop damage Small green plant bugs, overwintering as eggs. As honey locust buds expand, eggs hatch and nymphs feed on new growth. A ...

Honey locust (Gleditsia triacanthos)-Honey locust pod gall midge Dasineura gleditchiae Pest description and crop damage A tiny midge, or fly, that develops in leaves, deforming them. There are multiple generations each year, as little as 3 to 4 weeks apar ...

Ivy (Hedera)-Aphid Ivy aphid (Aphis hederae) See: Common Pests of Nursery Crops Pest description and crop damage Soft-body, greenish aphid. Ivy (Hedera) Aphid ...

Japanese holly (Ilex)-Spider mite Twospotted spider mite (Tetranychus urticae) and others See: Common Pests of Nursery Crops Japanese holly (Ilex) Spider mite ...

Juniper (Juniperus)-Aphid Cinara spp. See: Common Pests of Nursery Crops Pest description and crop damage The aphids that infest junipers are large insects, up to 0.2 inch long. Color may range from gray to brownish to dark. The aphids establish large col ...

Juniper (Juniperus)-Cypress tip moth and allies Argyresthia cypressella See: Arborvitae (Thuja)-Cypress tip moth Management- cultural control American arborvitae (Thuja occidentalis) is very susceptible to infection. Western red cedar (Thuja plicata) is v ...

Juniper (Juniperus)-Juniper scale Carulaspis juniperi See: Common Pests of Nursery Crops Pest description and crop damage The female scale is approximately 0.05 to 0.1 inch in diameter and white in color with a notable, central yellow spot. The male scale ...