Knowledgebase

Row Covers #858470

Asked February 04, 2024, 3:08 PM EST

For the last two years, I’ve rented space at a Bloomington community garden. I’ve had a horrible time fighting insects – squash bugs, possibly vine borers, cabbage worm, etc. The garden’s are organic, but hand picking bugs didn’t dent the insect population. Last year I tossed all my cucumber and squash vines, turnips and cabbage. I see two choices: Move to a newly established garden, or stay where I am and use row covers. I’ve read all your on-line information on row covers and have a few questions. It mentions that row covers do not work “if curcurbits were planted in the same area.” What do you mean by area? I have a 4 ft x 15 ft area that has not had cucumber vines in 3 years, but it’s about 5 ft from last year’s bug infested area. Is this far enough away? Also, every garden plot near me had the same insect issue; the renters left bug infected vines in their plots at the end of the season; and the entire area was tilled last October. Could overwintering cocoons have been tilled into my areas? My assumption is that an area that has never been gardened would not have an insect issue that first year. Am I correct?

Hennepin County Minnesota

Expert Response

Because some of these insects over winter in the soil, row covers could just trap them under the row covers as they emerge.  It is important to know exactly which insect and which crop you are having issues with in order to get an effective solution, i.e. row covers.

You might be better off just starting over in a new spot.  You may have already read the following websites but I will include them just in case you haven’t seen them.

1. https://extension.umn.edu/yard-and-garden-insects/squash-vine-borers
2. https://extension.umn.edu/vegetables/common-insects-vegetable-crops
3. https://extension.umn.edu/yard-and-garden-insects/cucumber-beetles
Mary, Master Gardener, Tree Care Advisor Replied February 05, 2024, 11:28 AM EST

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