• slide
  • slide
  • slide
  • slide
  • slide
  • slide
  • slide
  • slide

Squash Plants Wilt Suddenly May be Squash Vine Borer

Squash plants that suddenly wilt may be infested with squash vine borers.

Check the base of the plant’s stem for damage. You may notice a pile of saw-dust-like material called frass produced by these insects. The adult is a black and orange day flying moth that lays its eggs near the base of the stems.  The eggs hatch and the small worm-like larvae borers into, then continues eating inside the stem.

This prevents water and nutrients from moving between the roots and leaves, causing the plant to wilt and eventually die.  But don’t give up just yet.

Leave the plants in place while carefully slicing the stem lengthwise.  Remove or kill any borers you find. Then cover this portion of the stem with moist soil.  This encourages roots to form along the stem so the plant can continue to grow and produce.

A bit more information:  Reduce future problems by removing and destroying any borer infested vines this fall.  Proper cleanup removes the borers that overwinter in the plant debris. Next spring start watching for this pest early in the season and implement preventative strategies to reduce the risk of this pest.

Upcoming Live Events
& Webinars


April 3, 2024
Garden Trends 

Franklin Public Library, Franklin, WI

April 10, 2024
FREE WEBINAR

Container Gardening Throughout the Year
Register now

April 11, 2024
FREE WEBINAR

7 Steps to Managing Water Where it Falls in Your Yard
Register now

April 17, 2024
Landscaping for Birds: 
A Gardener’s Perspective

Glendale, WI 

April 18, 2024
Be a Waterwise Gardener
Golden Rondelle Theater, Racine, WI
Register now

April 20, 2024
Pruning Hydrangeas and Other Shrubs 
Pasquesi Home & Gardens, Lake Bluff, IL

April 27, 2024
Ridges & Rivers Book Festival
Viroqua, WI

April 28, 2024
Flowering Trees and Shrubs
Ebert's Greenhouse Village, Ixonia, WI

May 1, 2024
FREE WEBINAR

Ornamental Fruits and Vegetables
Register now

May 9, 2024
FREE WEBINAR

How to Plant Your Rain Garden
Register now

WATCH ON-DEMAND WEBINARS

Learn More

Book an Appearance

Learn More

Enter to Win The Birds & Blooms' Ultimate Gardening Guide !

ENTER NOW