D

  • Daffodils (Narcissus), 1, 2, 3, 4
  • Dahlia (Dahlia), 1, 2, 3, 4
  • Daikon (Chinese radish), 1
  • Daisy
    • Michaelmas (Aster), 1
    • painted (Tanacetum coccineum), 1, 2
    • Shasta (Leucanthemum maxima), 1
  • Damping-off, 1
  • Daylily (Hemerocallis), 1, 2
  • Deadheading, 1
  • Dead nettle (Lamium), 1
  • Deer, 1, 2
  • Delphinium (delphinium), 1
  • Delphinium × belladonna (delphinium), 1
  • Delphinium elatum hybrids (delphinium), 1
  • Devil’s darning needles (Virgin’s bower) (Clematis virginiana), 1
  • Dianthus (pinks, carnations), 1
  • Dianthus × alwoodii (Allwood pinks), 1
  • Dianthus caryophyllus (florist’s carnation), 1
  • Dianthus deltoides (maiden pinks), 1
  • Dianthus gratianopolitanus (cheddar pinks), 1
  • Diascia (diascia, twinspur), 1
  • Dicentra (bleeding heart), 1
  • Dicentra eximia (fringed bleeding heart), 1
  • Dicentra spectabilis (old-fashioned bleeding heart), 1
  • Digitalis (foxglove), 1
  • Digitalis grandiflora (D. ambigua) (yellow foxglove), 1
  • Digitalis × mertonensis (strawberry foxglove), 1
  • Digitalis purpurea (common foxglove), 1
  • Diseases, 1, 2, 3, 4. See also Disorders
    • common, 1
      • anthracnose, 1
      • blights, 1, 2
      • cankers, 1, 2
      • club root, 1
      • damping-off, 1
      • downy mildew, 1
      • galls, 1
      • leaf blisters and curls, 1
      • leaf spots, 1, 2
      • molds, 1
      • nematodes, 1
      • powdery mildew, 1
      • rots, 1, 2
      • rusts, 1
      • scabs, 1
      • smuts, 1
      • viruses, 1
      • wilts, 1
    • diagnosing, 1, 2
      • flower symptoms, 1–67
      • fruit symptoms, 1–67
      • leaf symptoms, 1–65
      • root symptoms, 1–66
      • stem symptoms, 1
      • whole-plant symptoms, 1–64
    • fighting, 1, 2, 3
      • barriers, 1
      • biological control, 1
      • soil solarization, 1, 2
      • sprays and powders, 1
      • stress-free environment and, 1
    • of fruit trees, 1–53
      • bacterial leaf spot, 1
      • brown rot, 1
      • canker, 1
      • fire blight, 1
    • plant pathogens, 1
      • natural defenses against, 1
    • preventing, 1, 2, 3
  • Disorders, 1, 2
    • chemical damage, 1
    • cold injury, 1
    • diagnosing, 1
    • heat injury, 1
    • moisture imbalance, 1
    • nutrient deficiency, 1
    • ozone damage, 1
    • salt damage, 1
    • wind damage, 1
  • Division, 1, 2, 3
  • Dogwood (Cornus), 1
    • flowering (C. florida), 1
    • kousa (C. kousa), 1
    • red-osier (C. sericea), 1
  • Downy mildew, 1
  • Dragonflies (“darning needles”), 1
  • Drip irrigation, 1
  • Dry sites, plants for, 1, 2