Liz Maynard

Clinical Engagement Assistant Professor of Horticulture
Department of Horticulture and Landscape Architecture
Liz Maynard's website

87 articles by this author

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​Good Agricultural Practices A to Z Workshops. Workshops are funded by Purdue, as part of AgSEED Crossroads funding to support Indiana’s Agriculture and Rural Development, or by a USDA/ISDA Specialty Crops Block Grant to Purdue. Programs focused on cantaloupe are also relevant to other fresh fruits and vegetables; all growers are welcome to attend. Tuesday, March 17, 2015. 12:30 p.m. – 4:00 p.m. Focus on Cantaloupe. 4-H Dining Hall, Adams County Fairgrounds, Monroe, IN. contact: Brad Kohlhagen, 260-724-5322, bkohlhag@purdue.edu. Tuesday, March 24, 2015. 12:30 p.m. – 4:00 p.m. Focus on Cantaloupe. Ag Hall, Elkhart County 4-H Fairgrounds, 17746 County Road 34, Goshen, IN. contact: Jeff Burbrink, 574-533-0554, Ext 106, jburbrink@purdue.edu. Friday, March 27, 2015. Parke County Fairgrounds, 1472 U.S. 41, Rockville, IN. Contact: Jim Luzar, 812-462-3371, luzar@purdue.edu. Monday, March 30, 2015. Hancock County, location TBD. Contact: Roy Ballard, 317-462-1113, rballard@purdue.edu. North Central Indiana Vegetable Grower Meeting. March 3, 2015. 9:30[Read More…]


​Welcome to a new year of the Vegetable Crops Hotline, 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 web sites or publications available on line. If you aren’t able to access these resources, please contact us or a local Extension office to request a hard copy of the information. We are excited to start the year with a new format for the online version of the newsletter.  Each article will appear as an individual post on the site. Articles may be posted anytime they are written, not just every two weeks when an issue is compiled. When an issue IS compiled, it will include all the articles posted since the previous issue. In addition,[Read More…]


The goal of the Vegetable Crops Hotline is to provide vegetable growers with timely information that helps you to improve your vegetable production and marketing. This url tinyurl.com/lqww2lw links to a very short survey that will help us to make the Hotline more useful to you. We are especially interested in any comments you have regarding how we can improve the dissemination of information. This survey should take you less than 5 minutes to complete so we would be very grateful if you would take the time to complete it. This survey is voluntary and anonymous. All information is confidential and no hidden tracking of individual responses is being used. As always, thank you for your assistance.


Unit heaters that aren’t properly maintained can be a source of air pollution that harms seedlings. (Photo by E. Maynard)

Transplant production will soon begin in earnest if not already underway. It is sensible to check the greenhouse heating system before starting production to make sure it works and won’t pollute the air in the greenhouse. This checklist for gas or propane-fire unit heaters highlights some of the major points. If you are not familiar with the system a service technician can help. General Maintenance. Check for physical damage; Remove any obstruction in vent and exhaust systems; Make sure components are supported properly and securely. Fans and Blowers. Lubricate as needed; Check for smooth operation; Inspect for physical damage; Adjust belts as needed; Check connections to electrical power. Heat Exchangers and Burners. Inspect exchanger closely for cracks or corrosion where air-polluting gases can escape; Clean inside tube surfaces if required; Inspect for dark discoloration on metal which may be a sign of overheating and if found, investigate cause; Clean gas[Read More…]


​Last year this at time many were discussing and commenting on the proposed Produce Safety Rule published by FDA. There were so many comments about parts of the rule that the FDA published a supplement in September 2014. The comment period on the supplement is open until Dec. 15. This article briefly summarizes parts of the revised proposal that address manure applications and water. The initial proposal required a waiting period of 9 months between application of raw manure and harvest of a crop covered under the rule. (The rule covers fresh fruit and vegetable crops normally eaten raw.) The new proposal does not define any specific waiting period. The FDA explains that this change was made because the length of time necessary to reduce the risk will vary depending on many factors, and we don’t yet have the scientific understanding to develop a rule that takes into account all[Read More…]


​Webinar – Crop Selection in High Tunnels . Thursday, Nov. 20, 10-11 a.m. EST. Presented by by Liz Maynard, Purdue Extension vegetable crops specialist. No registra – tion required. https://gomeet.itap.purdue.edu/cropsht/ Southwest Indiana Melon and Vegetable Grower Meeting. Thursday, Nov. 20, 5 p.m . EST. Southwest Purdue Ag Center, 4369 N. Purdue Road, Vincennes, IN. New members welcome. $15 per person at the door. Register by Nov. 14 by calling Sara Hoke or Dan Egel at 812-886-0198. Illiana Vegetable Growers Symposium. Tuesday, Janu – ary 6, 2015. Teibel’s Restaurant, Schererville, IN. Pro – gram available in early December. Sign up to be on the mailing list at https://ag.purdue.edu/hla/fruitveg/Pages MailListSignup.aspx , or call 219-531-4200 ext. 4206. Indiana Horticultural Congress. January 20–22, 2015. Wyndham Indianapolis West, Indianapolis, IN. www. inhortcongress.org . Contact: Lori Jolly-Brown at 765- 494-1296 or ljollybr@purdue.edu .  Indiana Small Farm Conference. March 5-7, 2015. Hendricks County Fairgrounds, Danville, IN. https://[Read More…]


With Halloween comes the final issue of the Vegetable Crops Hotline for 2014. The first issue of 2015 is included with a 2014 subscription, but now is the time for subscribers who receive a paper copy in the mail to renew. A renewal form is included with this issue. Email subscribers will remain on the subscription list as long as the email address works.   I’m interested in hearing suggestions about how to make the newsletter more useful to you. Part of that is delivering it in a format that you like. You can subscribe to receive a paper copy of this newsletter by U.S. mail, sign up to receive an email announcement when the pdf issue is posted online, or just visit vegcropshotline.org and download an issue when you need it. Indiana Vegetable Growers Association members receive a paper copy as a benefit of membership.Are there other ways you[Read More…]