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

Don’t miss this year’s Indiana Hort Conference & Expo. Jan 19-20, 2022. More detail of this years’ program and registration is at https://www.indianahortconference.org/ 


The grant is for small businesses and nonprofits to cover COVID-related expenses such as workplace safety measures e.g., personal protective equipment (PPE), retrofitting facilities for worker and consumer safety, shifting to online sales platforms, transportation, worker housing, and medical costs. Application due 11:59 p.m. Eastern Time on Monday, November 22, 2021. Applications must be submitted…Read more about Apply for Pandemic Response and Safety Grant Program Due Nov. 22[Read More]



Date: November 18, 2021, 5:00 pm (EST) Location: 4207 Purdue Rd, Vincennes, IN 47591. Purdue Extension Food Safety Training Hub, in the newly constructed Vincennes University Agricultural Center, located on highway 41 adjacent to Southwest Purdue Agriculture Center. The Southwest Indiana Melon and Vegetable Growers Winter Meeting will be back in person in 2021! Note the new…Read more about Southwest Indiana Melon and Vegetable Growers Winter Meeting[Read More]


Supported by Indiana Vegetable Growers Association and Illiana Watermelon Association, a collaborative project between Purdue University and Michigan State University that aims to help watermelon farmers improve irrigation management was recently funded. In this project, the team will conduct the scientific experiment at the Southwest Purdue Agricultural Center to test currently used irrigation management tools,…Read more about Collaboration between Purdue University and Michigan State University to Improve Irrigation Management in Indiana Watermelon Production[Read More]


Purdue specialists and educators are starting to plan winter programs. What topics and speakers would you like to see? Join a conversation on Thursday, Sept. 16, 8 pm to 9 pm Eastern/7 pm to 8 pm Central by phone or internet. Or, add ideas to online form here You can reach us by sending emails…Read more about What do You Want to See at Purdue Vegetable Programs this Year?[Read More]


Root-knot nematodes (RKN) are a devasting soilborne pest on a wide range of vegetables and fruits. They are most active in well-aerated soils and they like warm weather. Increasingly, we saw this pest in our regions. Root-knot nematode infections result in root swellings called galls, and heavily infected crops by RKN display aboveground symptoms such…Read more about Root-knot Nematode on Vegetable Crops[Read More]



As warm-season crops are harvested, many vegetable farmers start the process of transitioning to cool-season crops. Leafy greens and root vegetables are ready to be planted. High temperature is present across the state recently. The heat stress may affect germination and growth of some of the vegetables. Spinach is probably one of the most heat-sensitive…Read more about Heat Effects on Cool-season Vegetables[Read More]


Dr. Margaret McGrath’s lab from Cornell University has developed a great resource for growers interested in using biopesticides to manage vegetable diseases. https://www.vegetables.cornell.edu/ipm/diseases/biopesticides/  This article provides a general introduction of biopesticides, major types of biopesticides, and the pros and cons of using them. The website also lists representative biopesticide products that are available for managing…Read more about Resources for Biopesticides for Vegetable Disease Management[Read More]