New York Pest Management Guidelines
Contents
Growing Degree Days. 1
Key Plants and Key Pests. 1
Sample IPM Program.. 2
Further Reading. 2
Table 10. Key tree and shrub pests. 2
March (Dormant) 2
Mid- to late April 2
Early May. 2
Mid- to late May. 3
Early June. 3
Mid- to late June. 3
July. 3
Table 11. Tree and shrub pest management 4
Andromeda (Pieris) 4
Arborvitae (Thuja) 4
Azalea (Rhododendron) 4
Birch (Betula) 5
Boxelder 5
(Acer negundo) 5
Boxwood (Buxus) 5
Clematis. 5
Cotoneaster 6
Crabapple (Malus) 6
Dogwood (Cornus) 7
Douglas fir (Pseudotsuga) 7
Dutchman’s pipe. 7
(Aristolochia) 7
Elm (Ulmus) 7
Euonymus. 8
Firethorn (Pyracantha) 8
Flowering peach cherry, and plum (Prunus) 8
Hawthorn (Crataegus) 9
Hemlock (Tsuga) 10
Holly (Ilex) 10
Honeylocust 11
(thornless varieties) (Gleditsia) 11
Honeysuckle (Lonicera) 11
Horsechestnut and buckeye (Aesculus) 11
Ivy (Boston) (Parthenocissus) 11
Ivy, English (Hedera) 12
Juniper (Juniperus) 12
Laurel (Kalmia) 13
Lilac (Syringa) 13
Linden, littleleaf (Tilia) 14
London plane, Sycamore (Platanus) 14
Magnolia. 14
Maple (Acer) 14
Mountain ash (Sorbus) 15
Oak (Quercus) 15
Pachysandra. 16
Pieris. 16
Pines (Pinus) 16
Privet (Ligustrum) 17
Pyracantha. 17
Quince. 17
(Cydonia) 17
Rhododendron. 18
Roses (Rosa) 18