How can I prevent vine borers on zucchini?

Squash    NC

They are a persistent problem for me in my garden. Would row covers work? I love zucchini and I don't want to stop growing it.

Posted by: Ann McIntyre (1 point) Ann McIntyre
Posted: March 27, 2013


diatomaceous earth- sprinkle some at the base of the plant when it starts to get thicker than a pencil, it will wash off in the rain, so reapply after rain. The material is sharp and cuts up their soft bodies before they can get into the plant and kill it. It is not a chemical pesticide, it is mechanical.

Posted by: Bradley Cahill (1 point) Bradley Cahill
Posted: March 27, 2013

Also try and plant the zuccs a couple of weeks later than you usually do. Borers hatch at the same time each year and if there is nothing for them to eat then they will go somewhere else to find their food.

Posted by: deactivated (2 points) deactivated
Posted: March 28, 2013

Row covers work. Pin them tightly to the ground and remove them once you see blossoms on the plants. By then the clear winged squash vine borer moth has found more accessible plants to lay her eggs at the base of and the threat is pretty much gone.

Posted by: Gary L Smith (1 point) Gary L Smith
Posted: June 13, 2013

You need to log in if you'd like to add an answer or comment.