How Do You Kill Sawfly Caterpillars

Spot treat when possible as European pine sawflies commonly feed in groups.In the fall, apply imidacloprid or dinotefuron to the soil to control larvae for the following spring.

How do I get rid of sawfly caterpillars?

Avoid using broad spectrum insecticides that will damage the beneficial insect population. Good choices that are effective, but have little environmental impact, include insecticidal soaps and narrow-range oils. Another aspect of sawfly insect control is directed at the pupa that overwinter in cocoons in the soil.

Will soapy water kill sawfly larvae?

Since the larvae are soft-bodied, a homemade spray made of 4 tablespoons of organic soap in a gallon of water will help get them off plants. The stickiness will impede their ability to move and the film left by the soapy water will kill sawfly by means of suffocation.