HO-92
Yard'n Garden Calendar
PEPARTMENTS OF * HORTICULTURE * AGRONOMY « BOTANY & PLANT PATHOLOGY * ENTOMOLOGY
MAY JUNE
Everyone enjoys a pleasing yard and garden. Follow the simple steps outlined in this calendar, and your yard and garden will bring you much pleasure.

MAY
Kill dandelion, plantain and other broadleaf
weeds in your lawn with 2, 4-D. Use either spray or granular form or use a mixture of 2, 4-D, MCPP, and Dicamba where clover, knotweed, and ground ivy are a problem. Do not use these herbicides within the dripline of trees and shrubs.
Continue to water your new lawn as needed so it will be well established before hot weather comes.
Sod webworms in your lawn last year? Apply a phosphate insecticide such as diazinon during mid-May to mid-June.
Spray narrowleaved evergreens, such as pine and spruce, with malathion or Sevin to control scale insects and bagworms in Southern Indiana. Spray junipers with a fungicide containing ferbam if rust galls are present.
Prune spring-blooming shrubs, such as forsythia, after bloom. Use the thinning technique. Prune off the tips of long branches if necessary, but retain the plant’s natural shape.
Care for perennial flowers. Plant new chrysanthemums, or divide old ones by keeping the young outer portions and discarding the old parts. Set out other perennials such as asters and phlox. Don’t plant delphinium where you have grown them before.
Plant gladioli, dahlias, and cannas outdoors. Keep the developing leaves of gladioli covered with carbaryl (Sevin) to prevent thrip damage.
Set out petunia, salvia, snapdragon and other summer-blooming annual flowers.
Sow seed of annual flowers (zinnia, marigold, etc.) outdoors. Prepare soil and fertilizer with 1 to 2 pounds 5-10-5 or similar analysis per 100 square feet.
Spray flowers. For convenience, use an all-purpose material containing a fungicide, e.g., captan, and an insecticide, e.g., malathion. For roses, Phaltan, Fungi-nex, and Benlate are good for control of black spot. Ready-made bordeaux mixture or other copper-containing fungicides are excellent for early season control of tulip and peony diseases. Apply when shoots begin to emerge; soak the soil and the shoots. Use pesticides strictly according to label directions.
Set out house plants when all danger of frost is past. Be sure to water the plants thoroughly. Protect plants from full sunlight and strong winds until they have hardened.
Plant wilt-resistant tomato varieties. Water with a starter solution high in phosphorus, such as 10-52-17, with 1 tablespoon per gallon of water. Be ready to cover the plants with hot caps if there is a late frost.
Plant sweet corn, snap beans, cucumbers, and
seed of other tender vegetables. Treat seed before planting with a protective fungicide if not already treated. Treat cucumber seedlings for cucumber beetles soon after emergence. (See Cooperative Extension bulletin, E-30, “Cucurbit Insect Control.")
Follow spray programs for fruit trees. These are especially important before bloom and just after bloom. (Do not use insecticides during bloom as bees may be killed.)
Pick and destroy overwintering bagworms as
soon as possible.

JUNE
Water your lawn when it’s dry — 1 hour a week in open areas, 2 hours under trees. Wet soil to depth of 5 inches or more.
Add fertilizer to both old and new lawns. Five to 10 pounds of 23-7-7,10-6-4, or similar analysis fertilizer per 1000 square feet will do.
COOPERATIVE EXTENSION SERVICE • PURDUE UNIVERSITY • WEST LAFAYETTE, INDIANA