Tree diseases

  • All resources in tree diseases 256
  • Environmental factors and damage 117
  • Fertilization and soil management 3
  • General information 9
  • Insects and pests 122
  • Plant health care 171
  • Tree management and consulting 18

You have a fungal leaf spot on your Red Maple. This is very common on Red Maple and is typically not detrimental to...

An arborist should <a class="text-limeGreen-500 hover:underline hover:decoration-solid hover:underline-offset-4 hover:cursor-pointer hover:text-limeGreen-600" href="/make-appointment">visit your property</a> to inspect the river birch to determine the options.

It sounds as if you might have problems with soil fertility and/or root collar issues. You should be able to clearly...

This could be woodpecker damage, which is usually not an issue, or it could be borer damage, which could be very...

There are several pests that can cause needle browning and defoliation of blue spruce at this time of year. Spider...

It is entirely possible that aphids are a concern on your tree. Aphids are a pest of trees that suck plant juices from...

There are a number of factors that could contribute to a cherry losing its leaves early. Last year, we saw the...

Research has shown that tree paints do not suppress insect pests, disease or decay or provide any benefit to the...

Cabling is usually tough since there is nothing to cable them to. In some cases, we recommend reducing the tops...

It would be very unlikely that this would damage the plant. I would leave it as is for now and not remove the leaves...