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Early Pumpkin Ripening

August 22, 2012

Early Pumpkin Ripening
- Excerpt from Pumpkin and Winter Squash Harvest and Storage, written by Ruth Hazzard, University of Massachusetts. 

Ideally, pumpkins should be harvested when fully mature, with a deep orange color and hardened rind. However, as long as pumpkins have started to turn color, they will ripen off the vine if held under the proper conditions. While not ideal, this may be preferable to leaving them in the field if conditions are not favorable.

If necessary, pumpkins can be ripened in a well-ventilated barn or greenhouse. The best temperatures for ripening are 80-85 degrees Fahrenheit with a relative humidity of 80-85%. Night temperatures should not drop below the sixties. Even if pumpkins are ripe, a period of curing can improve storage life. The curing period should be about 10 days. During this process, the fruit skin hardens, wounds heal and immature fruit ripens all of which prolongs the storage life. Pumpkins should be stored in a cool, dry place. Ideal temperatures are between 50 F and 60 F and relative humidity of 50 - 70%. Higher humidity allows condensation on the fruit with risk of disease, and lower humidity can cause dehydration. Higher temperatures increase respiration and can cause weight loss. Temperatures lower than 50 F cause chilling injury. In a greenhouse, temperature can be managed with ventilation on sunny days. Unless it is quite cool, heat is not likely to be needed if the house is closed up at night.  

Often it is not feasible to harvest pumpkins early and store them until they can be marketed, and so they must be stored in the field. If vines and fruit are healthy, storage in the field can be successful for a few weeks. If the vines die back, damage to the fruit from sun, disease and insects is more likely. In any case, it is important to scout for insects feeding on the fruit and handles, which may include squash bug nymphs or adults, or striped cucumber beetle. Control them if damage is evident. In fields that have a history of Phytophthora blight, Fusarium fruit rot, or black rot, field storage may increase the incidence of these problems, particularly if we have a period of wet weather or a major storm while fruit is sitting in the field. This has been one of the causes of significant losses in recent years, and one reason that we recommend bringing fruit in as soon as it is mature.  



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Carrots

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Eggplant

Ethnic Vegetables

Ethnic Vegetables

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Garlic

Horseradish

Horseradish

Kohlrabi

Kohlrabi

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Leeks

Lettuce / Leafy Greens

Lettuce / Leafy Greens

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Melons

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Peas

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Potatoes

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Pumpkins / Gourds

Radishes

Radishes

Rhubarb

Rhubarb

Rutabaga

Rutabaga

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Snap Beans

Squash - Summer

Squash - Summer

Squash- Winter

Squash- Winter

Sweet Corn

Sweet Corn

Sweet Potatoes

Sweet Potatoes

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Upcoming Events

2025 Chipping Potato Twilight Meeting

Event Offers DEC Credits

September 4, 2025
Dansville, NY

Join us for a brief, on-farm meeting including insect pest updates and viewing of the chipping potato variety trial. 1.0 DEC credits in categories 10, 1a, and 23 will be offered. Dinner follows!

View 2025 Chipping Potato Twilight Meeting Details

Rochester Soil Health Field Day

September 16, 2025
Rochester, NY

Join us for a hands-on soil health field day! This event is for small-scale and urban growers, gardeners and farmers, with a focus on best practices for building soil health and cover cropping, and is a part of the 2025 Soil Health and Climate Resilience Field Days. It will offer valuable insights and hands-on demonstrations to enhance soil health.

View Rochester Soil Health Field Day Details

Announcements

NY Urban Farms Pest Management Fact Sheet Series

Cornell Cooperative Extension has partnered with dozens of urban farms across New York State to demonstrate and evaluate sustainable pest management strategies. Together with farmers, we found success using control methods that prevent or reduce crop losses through exclusion strategies, crop timing, host resistance, the introduction of beneficial organisms, and more. Regardless of management strategy used, common requirements for success include a knowledge of the pest and disease complex, preventative deployment and commitment to the process. The New York Urban Farms Sustainable Pest Management Fact Sheet Series includes case studies highlighting pest management techniques that New York urban farms have found valuable.

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