Voles (Microtus spp.)-Hort Answers - Illinois Extension
Snowmound Nippon Spirea (Spiraea nipponica 'Snowmound') Vanhoutte Spirea (Spiraea x vanhouttei) Small Fruit. Grape (Vitis vinifera) Tree. Crabapple (Malus species and hybrids) …
Spirea Aphid (Aphis citricola)-Hort Answers - University of Illinois ...
Spirea aphid is found in every state on spireas and crabapples. The aphid occurs in large numbers and its feeding often causes the leaves to distort, curl and pucker. The aphid has a …
Oystershell Scale Lepidosaphes ulmi - Illinois Extension
There are two commonly found races of oystershell scale in Illinois. They are brown oystershell scale and gray ostershell scale. The scale overwinters as eggs under the mother's covering. …
University of Illinois Extension - Selecting Trees for Your Home
Keep lilac shrubs properly pruned, removing stems over 2 inches in diameter.Avoid pruning lilacs and ash during summer months. Keep lilacs healthy - water and fertilize as needed to maintain …
Verticillium Wilt [Shrubs and Trees] - Illinois Extension
Snowmound Nippon Spirea (Spiraea nipponica 'Snowmound') Staghorn Sumac (Rhus typhina) Thunberg Spirea (Spiraea thunbergii) Vanhoutte Spirea (Spiraea x vanhouttei) Wayfaringtree …
University of Illinois Extension - web.extension.illinois.edu
If necessary use a recommended insecticide. Spray when Vanhoutte spirea is blooming. A second spray is needed when Hills of Snow Hydrangea blooms are turning from green to white …
University of Illinois Extension
Keep lilac shrubs properly pruned, removing stems over 2 inches in diameter.Avoid pruning lilacs and ash during summer months. Keep lilacs healthy - water and fertilize as needed to maintain …
Selecting Shrubs for Your Home - Sort by Tolerance
Thunberg Spirea Spiraea thunbergii. Vanhoutte Spirea Spiraea x vanhouttei. Wayfaringtree Viburnum Viburnum ...
Selecting Shrubs for Your Home - Sort by tolerance - Illinois …
Vanhoutte Spirea Spiraea x vanhouttei. Vernal Witchhazel Hamamelis vernalis. Wayfaringtree Viburnum ...
Shrub-Hort Answers - University of Illinois Extension
Bridalwreath Spirea Spiraea prunifolia. Bumald Spirea Spiraea x bumalda. Burkwood Daphne Daphne x burkwoodii .