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Bulbs

Daffodils (To diagnose problems go to Problems of Annuals, Bulbs, Groundcovers, Perennials, and Vines ) Bulb is a term loosely used to include corms, tubers, tuberous roots, and rhizomes as well as true bulbs. They are broadly grouped into spring flowering (January to May) and summer flowering (...

Care of Annuals and Perennials

Click on the highlighted word to find information on the planting and maintenance of bulbs , groundcovers , and vines . Watering Do not rely on summer rainfall to keep flower beds watered. Plan from the beginning to irrigate them. This is particularly important in the case of perennials, which are...

Annuals

(To diagnose problems go to Problems of Annuals, Bulbs, Groundcovers, Perennials, and Vines ) Annual flowers complete their life cycle in one growing season, during which time they grow, flower, and produce seed. Although some varieties will self-sow, or naturally re-seed themselves, the parents of...

Figs

Fig trees ( Ficus carica) make nice additions to Maryland landscapes. They can be pruned to a shrub or tree form, grown in containers or in-ground, are virtually pest-free, and can produce abundant crops when the proper cultivars are selected and carefully managed. Gardeners in warmer areas (...

Monthly Gardening Tips & Tasks

Back to Topics January February March April May June July August September October November December

Whiteflies - Vegetables

Back to leaf yellowing - seedlings and transplants Adult whiteflies (Family Aleyrodidae) on leaf Photo: Central Science Laboratory, Harpenden Archive, British Crown, Bugwood.org Appearance Eggs : Tiny, oval, suspended by short stalks on leaf underside, usually about 15 in a characteristic semi-...

Tomato Pinworm - Vegetables

Back to Vegetable Crops Small worms in tomatoes Tomato pinworm (Keiferia lycopersicella) larva on leaf Appearance Eggs : Minute, elliptical, light yellow or orange eggs, deposited in small groups of 3-7 on both upper and lower leaf surfaces. Eggs are very difficult to detect. Larvae : Newly hatched...

Tobacco - Tomato Hornworm - Vegetables

Back to Vegetable Crops Large green caterpillar Tobacco hornworm larva damaging a leaf ( Manduca sexta) Photo: Dr. M. Raupp Appearance Eggs : Smooth, round (resemble small pearls), vary in color from yellow/light green to white, hundreds laid singly on undersides of leaves. Larvae : Large,...

Spider Mite - Vegetables

Back to Problems - Herbs Back to leaf yellowing - seedlings and transplants Back to Vegetable Crops Adult spider mites Photo: Dr. Mike Raupp Spider mites: Twospotted spider mite - Tetranychus urticae; Strawberry spider mite Tetranychus turkestani; and European red mite - Panonychus ulmi (Koch)...

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