everything you need to know about this garden pest

The sawfly, also called sawfly, is an insect whose larvae are harmful to the garden. If the sawfly feeds mainly on pollen, its larva is indeed a real problem for plants. Here’s everything there is to know about sawfly and some tips for getting rid of it.

The characteristics of the sawfly

This flying insect is very similar to a wasp, except that unlike the latter, it does not have a finer part at the level of the abdomen.

It is called sawfly because of its spawning organ who owns? teeth a bit like a saw blade† With this specially shaped organ, it can pierce a host plant and lay the eggs in it.

When the eggs hatch, the larvae resemble caterpillars. That false caterpillars have the main characteristic of forming an “S” with their bodies when threatened.

These false caterpillars are mainly found on currant bushes, where the larva is quite light green. On the roses, the larvae are blue-green with numerous black spots on the body. The slug sawfly is present on a large number of fruit trees and the larvae are composed of a blackish slime that makes them resemble snails

In general, the larvae are active from the end of the spring to early summer

sawfly sawfly
Credit: Tomasz Klejdysz/iStock


In the garden, if there are few, the larvae do not do much damage. On the other hand, when they multiply, they can quickly remove all the leaves from a plant and destroy entire crops† You can easily spot an infestation of sawfly larvae by looking at the leaves. If you see holes there, chances are your plants are under attack.

Prevention and Elimination

In general, these false caterpillars are eliminated naturally by: many birds† So remember to set up your garden in such a way that as many birds as possible can fit in it. Other insects also play a role in regulating this pest. If the invasion is too important, it is possible to use “homemade” solutions composed of pyrethrum and black soap. This solution is very effective on young larvae.