Aphids

What is an aphid?

Aphids are fragile, pear shaped insects measuring approximately 2mm in length. They are usually pale green in colour, but can be a variety of colours.

What kind of damage is caused by aphids?

There are many different species of aphids that attack many different plants. In Saskatoon's urban forest it is common to see aphids on American elm and Manitoba maple. Damage caused by aphids does not typically impact plant health but can affect leaf shape and size. Aphids can produce honey dew, a sticky substance that can adhere to sidewalks and vehicles.

How do I control aphids?

Typically aphids do not require treating with insecticides. Some are available and registered for aphid control. Also read the label and use as directed. In some situations ladybird beetles (ladybugs) can be used to control aphids.