Spot Lilac Scale Prep Plants Snug For Winter

Now that the leaves have fallen, examine bare stems of lilacs for oyster-shell-shaped scale infests several kinds of shrubs and trees and is especially fond of lilacs, Lombardy poplar, and ash. 

lilac scale plants snugPin

Heavily Infested Plants

Heavily-infested plants are gradually weakened and may be killed if control measures are not followed.

This scale is difficult to control because of its resistance to insecticides. The hard horny scale covering is so tightly glued to the bark of the host plant that the over-wintering eggs are protected from the common dormant spray materials.

Young Crawlers

Young crawlers appear from the over-wintering eggs, us u ally about when apples are in bloom. Fortunately, there is but one brood a year.

The former recommendation to use dormant sprays has been changed. Now we recommend a spray to kill the young crawlers instead of the over-wintering eggs.

Spraying of Scale-Infested Plants

The present recommendation is to spray the scale-infested plants thoroughly about the first week of June, using 2 tbps of malathion in 3 gallons of water.

Fruit trees are generally not planted until spring, but if good dormant stock is available, planting may be done now. 

Be sure to wrap trunks of trees to protect them from mouse and rabbit injury. Mounding soil up about six inches on the trunks also helps prevent injury from mice.

Method of Protecting Orchard Trees

A comparatively new method for protecting orchard trees from mice consists of filling a 6” by 6”  trench around the bases of the trees with a crushed rock of about one-inch size. Mice apparently will not dig through this rock to reach the bark of the trees.

Planting of Most Perennials

Since the fall season is now far advanced, planting of most perennials should be delayed until spring. Deep-rooted plants, such as peonies, Oriental poppies, balloon flowers, and hollyhocks may still be set.

Most hardy perennials when once established do not need a winter mulch here. However, since the border usually includes some rather tender varieties, a mulch of loose prairie hay, straw, or evergreen boughs will be well worth the effort of applying.

Sand Covering

A small cinder or sand covering over delphiniums is frequently advised to help prevent too early growth in the spring.

Rhododendrons, holly, yews, frank-Jinja, magnolias, and flowering dogwoods should have a three- or four-inch mulch of oak leaves or peat or a mixture of the two. Oak sawdust and pine needles are also good mulches for these.

Berried Plants

Berried plants add interest to the fall season. Many of the berries furnish food for migrating and wintering birds.

Red Fruits

The Washington Hawthorne, cock-spur Hawthorne, Zumi, and Sargent crab apples all bear decorative red fruits that persist well into the winter and frequently remain as a special treat for the cedar waxwings that visit us on their early spring trip north.

Scarlet Berries

Ilex decidua, possumhaw, is a native holly with scarlet berries of outstanding beauty. The red chokeberry, pyracantha, Japanese barberry, and American cranberry bush add red berries to the fall picture.

Underdog Rose

Rosa multiflora, which has been the underdog rose all summer, now outshines the proud hybrid tea. The multiflora is the species now being used extensively in the Midwest as a “living fence” in soil and wildlife conservation programs.

Attractive Fruits

Other plants with attractive fruits are; 

  • American holly, 
  • Inkberry, 
  • (Ilex glabra), 
  • Winterberry euonymus, 
  • Beautyberry (callicarpa), 
  • Bittersweet, 
  • Garden snowberry (white berries), 
  • Buck-brush or coral berry, 
  • English and Ibota privets, with black fruits; and 
  • The Canaert and
  • Scopulortun junipers with bluish fruits.

Winter Protection

Evergreens such as Irish, Swedish and Greek junipers and the Oriental arbor-vitae, which produce many stems from the base, are subject to winter damage from sleet and snow. 

To avoid this probable injury wrap the tree with the soft heavy cord from the base spirally to the top and down again to tie at the starting point.

Mulching of Strawberry Plant

Strawberry plants should be mulched now to protect them from winter killing. Prairie hay or straw applied about four inches deep is generally used. Leaves are less desirable but they may be mixed with the other materials.

Hardy Water-Lilies

Hardy water-lilies may be successfully wintered over in larger pools where there is enough water over the soil in which they are planted. 

Leaves may be filled in the small pool to cover the lily boxes and a tight wooden lid then be placed over the pool. 

A foot of leaves piled over the lid, extending out over the edge of the pool and held down with branches, will keep the lilies in good condition and help prevent the pool from cracking.

Cool Place for Lilies

The boxes containing the lilies could also be removed and placed in a cool cellar for the winter. Add a little water occasionally to prevent the roots from drying.

Another safe way to winter hardy water-lilies in their containers is to bury them in a trench with about one foot of soil covering, topped with leaves or straw.

Potting soil which will be needed for shifting house plants during the winter or for indoor seed sowing in early spring should be prepared now and stored where it will be in proper condition for use at any time.

44659 by Stanley R. Mclane