Tree Health Diagnosis

Trees are a lot like people in one very important way: they need proper care and regular monitoring to make sure they’re healthy and thriving. To take that one step further, it’s also necessary to call in a professional once in a while to make sure that care and monitoring is on track. 

That’s why, when you spot brown or wilted leaves or other signs of a problem, it’s important to call in a Certified Arborist for a professional assessment and the correct treatment options. With our experience with pests and diseases that are common to the Conejo Valley, along with familiarity with local weather and climate patterns, we quickly and accurately identify problems and offer solutions. 

The variety of pests and diseases we’ve seen in our area is pretty amazing. Pests include: 

  • Scales
  • Thrips
  • Psyllids
  • Aphids 
  • White flies
  • Caterpillars
  • Mites
  • Sawflies
  • Borers
  • Ants
  • Spiders

Diseases we’ve seen include:

  • Armilleria
  • Hytophthora
  • Fire blight
  • Anthracnose
  • Galls
  • Cankers
  • Conks
  • Mistletoe
  • Sudden oak death
  • Powdery mildew
  • Rust
  • Leaf spot

We use a range of methods to address these common pests and diseases, and we always take to use the most efficient and environmentally friendly approach. 


Although we had a terrific series of storms and abundant rainfall in early 2023, the fact is that in Southern California drought is a problem that we should prepare for over the long term. With that said, trees can exhibit many signs when they are experiencing drought stress, including problems such as leaf wilting. This is actually a tree’s defense mechanism in order to store water and retain moisture. The problem is that a tree cannot live like that very long. If a tree goes into this mode over a long of a period it will cause limbs to die back and the wood to dry out. If you suspect that your trees have suffered from drought, give us a call. As Certified Arborists, we can conduct a thorough analysis of your trees’ health and give you recommendations for helping them thrive.