Crop Culture

Vegetable Crops Hotline A newsletter for commercial vegetable growers prepared by the Purdue University Cooperative Extension Service

Crop Culture

Check Soil Temperatures Before Planting Cold Sensitive Crops

May 2, 2023 - From Issue: 718

By: Wenjing Guan

Most of us know a temperature lower than 32°F would kill tender vegetables like tomatoes, peppers, melons, and cucumbers. Home gardeners would wait to plant those crops after the last [Read More…]

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Cucurbits

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Strawberry Spring Frost Protection—Considerations in March

March 13, 2023 - From Issue: 715

By: Wenjing Guan

We are concerned about frost/freeze damage to the crops at this time of year. As I am writing this article, we had forecasted low temperatures in the lower 20sºF on [Read More…]

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Strawberry

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Crop Culture

Grafted Tomatoes for High Tunnel Production

February 22, 2023 - From Issue: 714

By: Wenjing Guan

A grafted tomato plant grown in a high tunnel

Grafted tomatoes show advantages, particularly for high tunnel production. A Purdue extension publication, Techniques for Tomato Grafting, and the video provide a step-by-step guideline for small growers to explore this technique. I am often [Read More…]

Article Categories:

Solanaceous Crops
- Tomato

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Low Temperatures in December Hurt January and February Markets

February 22, 2023 - From Issue: 714

By: Wenjing Guan

A common approach in winter production is to allow crops to reach maturity or harvestable size by the end of November. High tunnels are then used as a ‘living refrigerator’[Read More…]

Article Categories:

Greens and Salad Crops
- Spinach

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Scheduling Fall and Winter Vegetable Production in High Tunnels, Revisited

October 20, 2022 - From Issue: 713

By: Liz Maynard

In April we announced a new bulletin “Scheduling Fall and Winter Vegetable Production in High Tunnels”, available from the Purdue Education store at https://edustore.purdue.edu/item.asp?Item_Number=HO-330-W . With the fall/winter high tunnel [Read More…]

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Plasticulture Strawberry Crop Status: Are Additional Protections Needed to Encourage Fall Growth?

October 19, 2022 - From Issue: 713

By: Wenjing Guan

Fig. 1 Low tunnel was installed with a mechanical transplanter low tunnel layer.

5I have heard concerns about the size of strawberry plants this year. To provide a timely update of crop status, we created a blog site where there will be frequent [Read More…]

Article Categories:

Strawberry

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Crop Culture

Applying Row Covers for Winter Protection in Plasticulture Strawberry Production

October 18, 2022 - From Issue: 713

By: Wenjing Guan

Figure 1. The strawberry field was covered with floating row covers (1.5 oz) for frost protection in spring

Row covers are used in plasticulture strawberry production for winter protection. There is also interest in using row covers to encourage fall growth. The different purposes of using row covers [Read More…]

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Strawberry

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Crop Culture

Season Extension Strategies—What I learned in a CA trip

June 2, 2022 - From Issue: 705

By: Wenjing Guan

Thanks to my University of California Cooperative Extension colleagues, I visited central valley vegetable production last week. Undoubtedly, I learned a lot on this trip. I want to share what [Read More…]

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Watermelon Irrigation and Nitrogen Fertilization Methods Commonly Used in Indiana

April 6, 2022 - From Issue: 701

By: Wenjing Guan

Figure 1. Distribution of watermelon acres using the three irrigation methods in Indiana: No irrigation in any forms, overhead irrigation, drip irrigation.

At the 2022 Southwest Indiana Melon and Vegetable Growers Annual Meeting, 17 watermelon farmers and 2 agricultural professionals shared their irrigation and fertilization management practices used for watermelon production in [Read More…]

Article Categories:

Cucurbits
- Watermelon

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Ethylene Damage on Tomato

March 16, 2022 - From Issue: 700

By: Dan Egel

These tomato plants are exhibiting epinasty or a downward growth of the leaves in response to ethylene produced from a malfunctioning heater in a greenhouse.

We are getting close to the time of year when I begin to get phone calls about strange symptoms on tomato plants in greenhouses. Too often, the problem is ethylene [Read More…]

Article Categories:

Solanaceous Crops
- Tomato

Article Tags:

Crop Culture

Check Soil Temperatures Before Planting Cold Sensitive Crops

Strawberry Spring Frost Protection—Considerations in March

Grafted Tomatoes for High Tunnel Production

Low Temperatures in December Hurt January and February Markets

Scheduling Fall and Winter Vegetable Production in High Tunnels, Revisited

Plasticulture Strawberry Crop Status: Are Additional Protections Needed to Encourage Fall Growth?

Applying Row Covers for Winter Protection in Plasticulture Strawberry Production

Season Extension Strategies—What I learned in a CA trip

Watermelon Irrigation and Nitrogen Fertilization Methods Commonly Used in Indiana

Ethylene Damage on Tomato

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