Wenjing Guan

Wenjing
Vegetable Crops Hotline Editor & Clinical Engagement Associate Professor
Department of Horticulture and Landscape Architecture
Area(s) of Interest: Commercial Vegetable and Melon Production
Wenjing Guan's website

463 articles by this author

Article List

NCR-SARE’s Professional Development Program (PDP) provides funds for professional development projects that provide sustainable agriculture training to agricultural professionals and educators. Projects can be up to three years in duration, and funding level is capped at $75,000 for each project. The 2017 call for proposals is now available online at http://www.northcentralsare.org/Grants/Our-Grant-Programs/Professional-Development-Grant-Program Proposals are due at…Read more about NCR-SARE 2017 Professional Development Program Call for Proposals[Read More]


OCCSP provides cost share assistance to producers and handlers of agricultural products who are obtaining or renewing their certification under the National Organic Program (NOP). Certified operations may receive up to 75 percent of their certification costs paid during October 1, 2016, through September 30, 2017, not to exceed $750 per certification scope. Certified organic…Read more about Organic Certification Cost-Share Program (OCCSP)[Read More]


There are several potential benefits of growing grafted tomatoes, particularly for early season tomato production in greenhouses or high tunnels. If you are interested in trying this technique but wondering whether it is possible to graft tomato plants by yourself, a Purdue extension publication, Techniques for Tomato Grafting, (https://extension.purdue.edu/extmedia/HO/HO-260-W.pdf ) provides a step-by-step guideline for small…Read more about Growing Grafted Tomatoes in High Tunnels[Read More]


Welcome to a New Year of the Vegetable Crops Hotline (VCH), Purdue Extension’s newsletter for people in the business of growing vegetables. Our goal is to provide timely information that will be useful for Indiana vegetable growers. If there is something you’d like to see included, please let us know. Frequently we include links to…Read more about Welcome to a New Year of the Vegetable Crops Hotline[Read More]


— Notes from Watermelon Research and Development Group Annual Meeting and 2016 Indiana Watermelon Variety Trial We are proud to be in Vincennes, the heart of watermelon producing counties in Indiana. In case you are unfamiliar with watermelon production here, Indiana is just behind Florida, Texas, Georgia, California and South Carolina in watermelon production nationwide….Read more about Watermelon Variety Considerations[Read More]


Daikon Radish


Last fall, my lab received a carrot sample with disease-like lesions (Figures 1 and 2). There are at least 3 carrot diseases that may appear similar. These diseases are: Alternaria leaf blight (late blight), Cercospora leaf spot (early blight) and bacterial leaf blight. Often an examination in the laboratory is necessary. My examination revealed the characteristic spores…Read more about Alternaria Leaf Blight of Carrot[Read More]


The Midwest Cover Crops Council (MCCC) strives to facilitate widespread adoption of cover crops throughout the Midwest, to improve ecological, economic, and social sustainability. The Cover Crop Decision Tool is an initiative by the MCCC to consolidate cover crop information by state to help farmers make cover crop selections at the county level. The tool…Read more about Cover Crop Decision Tool for Vegetable Growers – Discussion on November 7th[Read More]


Tomato is considered one of the most profitable crops grown in high tunnels, but continually growing one single crop leads to build-up of diseases. In addition, growers are facing more competition in selling tomatoes in the market. To enhance resilience of high tunnel system and increase access to consumers, crop diversification is important. In this article, instead…Read more about 2016 Cucumber Variety Evaluation in a High Tunnel at Southwest Indiana[Read More]


We have two new extension faculties join the Department of Horticulture and Landscape Architecture at the Purdue University. Please join me welcome Dr. Ariana Torres and Dr. Krishna Nemali. Dr. Torres’ background combines field experience in agriculture with theoretical and applied research on agricultural economics. After earning her B.Sc. in Agricultural Engineering at Zamorano University,…Read more about Welcome Dr. Ariana Torres and Dr. Krishna Nemali[Read More]