Vegetables

Sustainable Agriculture

Sustainable vegetable crop production should meet the needs of present and future generations and use approaches that are not harmful to the health of farmers or consumers and lead to a reduced impact on the environment.

In this section, find information on sustainable production of vegetable crops including crop rotation and conservation tillage, extending the grazing season and interseeding. Find tips on using biocontrol to manage insects and diseases in high tunnels and pollination.

Sustainable Vegetable Farming Practices

Sustainable vegetable farming brings two parts of agriculture together. Rather than taking place completely independent of each other, animals and crops are brought together. Sustainable vegetable crop production relies on using animal manure, compost, and other natural fertilizers to improve the health of the soil and uses ecosystem-based pest controls instead of chemical pesticides.

On this page, you can find a vast selection of resources on sustainable practices for vegetable crops including soil fertility management and weed management.

You can use raised beds, for example, for both small and large scale sustainable vegetable production. Drip irrigation for vegetable production is a very efficient method of applying water and nutrients to crops. It also reduced disease and weed pressure. GMO crops have the potential to improve sustainability by reducing herbicide, pesticide, and fertilizer use.

Sustainable Weed and Pest Management for Vegetable Farms

Without tilling or using pesticides, vegetable farmers have to manage weeds and pests using sustainable methods. Integrated weed management plays a fundamental role. However, the first step is to monitor or scout and identify weeds in your fields. Information on integrated weed management is also available in Spanish.

Scouting frequently and regularly for pests and diseases is also crucial and could save your crop. You can use pest and plant disease prediction tools to help monitor and anticipate the likelihood of pests and plant diseases affecting your vegetable crops. Leaf mold, for example, is a common problem when growing tomatoes in high tunnels.

Biocontrol plays an important role in Integrated Pest Management. When scouting for pests in high tunnels, you should also be looking for beneficial insects and natural enemies such as green lacewings, lady beetles, and parasitoid wasps. There’s also the option of releasing insects and mites along with biopesticides that contain specialized fungi and bacteria.

Vegetable Crop Rotation, Low-Till Farming, and Soil Health

A certain amount of crop planning is necessary if you’re farming sustainably and using a variety of techniques to raise your vegetable crops.

You can use cover crops as weed control. An added benefit is that they recycle or add nitrogen to the soil, thereby improving its health and fertility. You can use soil test reports to better understand the health of the soil.

You can also control weeds by mulching, or spreading a cover layer over unplanted soil. As well as suppressing weeds, it also maintains soil temperature and retains water. Low- or no-till practices are increasingly popular because they increase organic matter and the amount of carbon the soil can store. They also improve soil structure and its capacity to retain water.

Encouraging Bees and Pollinators in Your Vegetable Garden

Bees and other pollinators play a vital role in growing vegetables in the garden. Long term honey bee declines are the result of a number of different factors, one of which is their exposure to multiple pesticides.

Another very important pollinator is the wild bee. Spring is an important time of the year for pollinators such as mason bees, cellophane bees, and bumblebees. Both honey and wild bees visit cucurbit crops, while squash bees are important for pollinating pumpkins.

In orchards, producers have traditionally managed European honey bees as pollinators; however, the use of pesticides means growers have to look for ways to attract alternative pollinators.

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  1. Mid-Atlantic Commercial Vegetable Production Recommendations
    Guides and Publications

    Starting at Free

    Mid-Atlantic Commercial Vegetable Production Recommendations
    This guide, updated in February 2022, contains vegetable production information based on university, extension, and industry research, experience, and knowledge.
  2. Penn State Extension – Your Source for Agriculture Information
    Articles
    Penn State Extension – Your Source for Agriculture Information
    By Elsa Sánchez, Ph.D.
    When you are looking for agriculture information, Penn State Extension is the bridge between the science conducted at the Pennsylvania State University and you, as part of the agriculture community.
  3. Penn State Extension – Su Fuente de Información sobre la Agricultura
    Articles
    Penn State Extension – Su Fuente de Información sobre la Agricultura
    By Elsa Sánchez, Ph.D., Maria Gorgo-Gourovitch
    Si Usted está buscando información sobre agricultura, Penn State Extension es el puente entre la ciencia que se investiga en Pennsylvania State University y Usted como parte de la comunidad agrícola.
  4. En el Camino: Granja Orgánica de Toigo 2018
    Articles
    En el Camino: Granja Orgánica de Toigo 2018
    By Elsa Sánchez, Ph.D., Francesco Di Gioia, Ph. D., Robert Berghage, Ph.D.
    En Toigo, cultivan principalmente tomates y también pepinos, pimientos y berenjenas para mercados al por mayor y directas.
  5. Photo courtesy of Toigo Farm.
    Articles
    On the Road: Toigo Organic Farms in 2018
    By Elsa Sánchez, Ph.D., Francesco Di Gioia, Ph. D., Robert Berghage, Ph.D.
    At Toigo, they grow primarily tomatoes, along with cucumbers, peppers, and eggplants for wholesale and direct markets.
  6. Photo credit Mary Ann Frazier, Penn State Extension.
    Articles
    Who are Our Pollinators?
    By Christina Grozinger, Ph.D., Shelby Fleischer, Ph.D., Krishona Martinson
    Approximately three quarters of our major food crops are pollinated. Here we will look at how wild bees provide insurance against ongoing honey bee losses.
  7. Small Striped Bee (Halictus). Photo USGS Bee Inventory.
    Articles
    What Can We Do to Encourage Native Bees?
    By Christina Grozinger, Ph.D., Shelby Fleischer, Ph.D., Tianna DuPont
    Pollinators need a diverse, abundant food source and a place to build their nests and rear their young. If we keep these two elements in mind we can encourage native bee populations.
  8. Varroa mite parasitizing bee. Thought to be one of the major factors contributing to hive losses. Photo Alex Wild.
    Articles
    Pollinator Declines
    By Christina Grozinger, Ph.D., Shelby Fleischer, Ph.D., Tianna DuPont
    Domestic honey bees hives are down by 59% compared to 60 years ago with rapid declines over the last forty years. The populations of some native bee species may also be declining.
  9. Vegetable IPM with an Emphasis on Biocontrol
    Guides and Publications

    Starting at $15.00

    Vegetable IPM with an Emphasis on Biocontrol
    By Mary Barbercheck, Ph.D., Elsa Sánchez, Ph.D.
    Control the insect pests that attack your vegetables.
  10. Biodegradable Mulch Demonstrations
    Articles
    Biodegradable Mulch Demonstrations
    In order to look at the possible labor and resource savings, Penn State Extension educators working with growers, laid biodegradable mulch at seven sites around the state.
  11. Drip irrigation of bell peppers
    Articles
    Drip Irrigation for Vegetable Production
    By Jayson K. Harper, Ph.D., Albert Jarrett, Ph.D., Michael Orzolek, Ph.D.
    Drip or trickle irrigation is a very efficient method of applying water and nutrients to crops.
  12. Riego por goteo de pimientos.
    Articles
    Riego por Goteo para la Producción Vegetal
    By Jayson K. Harper, Ph.D., Lynn Kime, Albert Jarrett, Ph.D., Michael Orzolek, Ph.D.
    La irrigación o riego por goteo o chorreo es un método muy eficiente para la aplicación de agua y nutrientes para los cultivos.
  13. Leaf Mold on determinate, high tunnel tomato plants.
    Articles
    Managing Leaf Mold in High Tunnels
    By Steve Bogash
    High Tunnel acreage in PA and the Mid-Atlantic continues to grow due to improvements in tomato quality, the NRCS cost-sharing program, and substantially earlier harvests.
  14. Bombus in pollinator cover crop plots. Photo credit Tianna DuPont.
    Articles
    Pesticides and Pollinators
    By Christina Grozinger, Ph.D., Shelby Fleischer, Ph.D., Tianna DuPont
    Researchers believe that long term honey bee declines are a result of a complex set of factors.
  15. Potato Cultivars Suggested for Pennsylvania and Resistance Characteristics
    Articles
    Potato Cultivars Suggested for Pennsylvania and Resistance Characteristics
    By Beth K. Gugino, Ph.D.
    Host resistance is an important tool for managing diseases. Potato cultivars vary in susceptibility to common diseases including late blight, early blight and common scab.
  16. Adam Sisson, Iowa State University, Bugwood.org
    Articles
    Getting Started Using Biocontrols to Manage Insects and Diseases in High Tunnels
    By Steve Bogash
    Biological control of insects, mites and diseases has the potential to greatly expand the number of effective options in our pest management toolbox.
  17. Pest and Plant Disease Prediction Tools
    Articles
    Pest and Plant Disease Prediction Tools
    There are several online tools to help you monitor and keep up to date on the proximity and likelihood for pests and plant diseases.
  18. Wild Bees for Pennsylvania Cucurbits
    Articles
    Wild Bees for Pennsylvania Cucurbits
    By Shelby Fleischer, Ph.D.
    In addition to honey bees, which are managed, various un-managed species that exist as wild populations play key roles in providing pollination of cucurbit crops.
  19. Marshall Hart leads a tour of the hoophouse production at Braddock Farms.
    Articles
    Special Considerations for Urban Ag Practitioners
    By Heather E. Manzo
    For urban growers, there can be several considerations to take into account during the development of a production area.
  20. Scouting frequently and regularly could save your crop.
    Articles
    Scouting for Pests and Diseases in Vegetable Crops
    By Emelie Swackhamer
    Plant, weed, hoe, cultivate, water, plant, fertilize, water... No time to stop and take a close look for pests and diseases? Take a few minutes. It could save your crop.