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How to keep pumpkins until fall #847924

Asked August 30, 2023, 1:59 PM EDT

Hi, In the past I've had some sort of grub/larva get into the base of my pumpkin vines and within a few days the vines shrivel an disappear. This year I applied Sevin dust shortly after they seeds sprouted and had decent luck and have mature orange pumpkins. But now the stems are disappearing (not dying off like they normally would after frost, but practically disappearing they shrivel up so much). They've been kept watered, so it looks like something has gotten to the stems again. Two questions: 1. What's the best way to prevent these stem wreckers? 2. What's the best way to keep the pumpkins fresh/intact until my nieces and nephews come for them in October? :-) Thanks!

Hennepin County Minnesota

Expert Response

Hi Joseph

   It sounds like you're dealing with some squash vine borers. They are a common pest on pumpkins and other squash/cucurbits species in MN. There's one generation per year that emerges from cocoons within the soil to destroy our gardens. As far as the best ways to keep them from attacking your pumpkins there is a few methods. I think rotating planting locations and using floating row covers could work well. I will attach a few links with information about preventing them.

Squash vine borers | UMN Extension

Squash Vine Borer, Melittia cucurbitae – Wisconsin Horticulture

And here is a link with information about harvesting and storing them. 

Harvesting and storing home garden vegetables | UMN Extension

I hope this helps you keep some pumpkins going this year and into the future!!!
If you have any other questions or concerns feel free to reach out to me or the extension.

Jeramiha E. Replied August 30, 2023, 7:29 PM EDT

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