Get matched with top tree service pros in Covina, CA

You should not trim an oak tree in the summer. Oak trees are especially susceptible to disease, and open tree wounds are an invitation for beetles that carry tree-killing fungus. If there’s no risk that the oak tree will do damage to your property or hurt someone, it’s best to save the trimming for fall or winter. If you can, seal the wound with latex to prevent fungus from getting inside.

If an arborist is certified by the International Society of Arboriculture (ISA), the highest level of certification available is ISA Board Certified Master Arborist. According to the ISA, this credential is reserved for arborists “who have reached the pinnacle of their profession.” Check your arborist’s credentials before hiring to confirm their level of training and expertise.

Getting a tree pro with the right experience can be the difference between your transplanted tree surviving or not. When hiring a local tree transplanting and removal service, follow up on references, check their portfolio, ask for a breakdown of the costs, and get proof of liability and workers’ compensation insurance. 

Also, look for companies certified by the International Society of Arboriculture or registered with the Tree Care Industry Association and make sure they have an appropriate state or city license.

Deciduous shade trees (the type of trees whose leaves fall off in autumn) need to be pruned in late winter—between February and March. That’s because it’s easier to find and remove sick or dead branches when no leaves are present. And wounds close and heal faster in colder temperatures so pruning them at this time also makes them less prone to infection.