Technical reports

  • All 320
  • Environmental factors and damage 50
  • Fertilization and soil management 34
  • General information 106
  • Insects and pests 82
  • Plant health care 91
  • Tree diseases 81
  • Tree management and consulting 15

Camellias are wonderful large shrubs or small trees for southern and western gardens. The two common species used in …

In recent years, a pattern of diseased European hornbeam (Carpinus betulus) has been …

Cankerworms

Canada, United States

Cankerworm caterpillars are inchworms or loopers common on shade trees in late spring. Two species of cankerworms are…

Cavity filling

Canada, Great Britain, Ireland, United States

Years ago, filling tree cavities with concrete, bricks, or mortar was common practice, following the dental practice of …

Centipedegrass (Eremochloa ophiuroides) is a low maintenance, warm-season turfgrass that spreads by stolons,…

Cherry bark tortrix

Canada, United States

The cherry bark tortrix (CBT), Enarmonia formosana, is an introduced caterpillar pest in western North America and is…

Citrus have attractive, glossy, evergreen leaves; fragrant flowers; and decorative, edible f…

In warmer climates, citrus are planted as fruit trees, but can also be used as ornamental trees or shrubs. They have …

Coast live oak (Quercus agrifolia) is a highly prized landscape tree native to coastal areas of California. …

Common oak scales

Canada, Great Britain, Ireland, United States

Oak species are used as the primary or secondary host by a large number of scale insects. High populations of any one…