Liz Maynard

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

77 articles by this author

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Flats of cabbage transplants are supported a few inches from floor of greenhouse

Many Indiana vegetable crops begin life as transplants. If lack of nutrients, lack of light, disease, or other problems slow growth during this stage it may reduce establishment success and/or growth and yield in the field or high tunnel. Good management of the following factors should lead to healthy transplants (see Figure 1). Time. Don’t seed transplants too early. Overgrown transplants are difficult to manage. If they get so root bound and shaded by other plants in the same flat that growth stops it will take them longer to resume growth in the field. They may become weakened and more susceptible to disease in the transplant tray and field. The ideal time depends on the crop and cell size, as well as the growing temperature. For ease of transplanting the finished transplant should have a well-developed root system that holds the root ball together, a sturdy stem, and be of[Read More…]


The Midwest Vegetable Production Guide for Commercial Growers (ID-56) is updated annually.

​The Midwest Vegetable Production Guide for Commercial Growers, or ID-56, remains a popular resource for growers in the region. If you haven’t got the 2015 edition yet, don’t delay! Members of the Indiana Vegetable Growers Association for 2015 receive a copy at no additional charge and hard copies can be purchased from The Education Store (phone: 888-398-4636) for $10 plus shipping. To download part or all of the book as a pdf, visit mwveguide.org The Midwest Vegetable Trial Report for 2014 includes trial results for sweet corn, cantaloupe, watermelon, tomatoes, peppers, pumpkins, and more, including several crops in high tunnels. The book is available from The Education Store under the product number 16-18-14. Individual reports or the entire book may be downloaded in pdf format from ag.purdue.edu/hla/fruitveg/Pages/mvtr2014.aspx.


The Southwest Indiana Melon and Vegetable Growers Association (SWIM) will have their Annual Meeting beginning at 9:00 a.m. Eastern Time on Friday, March 6, 2015, at the French Lick Resort & Conference Center, 8670 W. State Rd. 56, French Lick, IN. ​ We will be meeting in conjunction with the Illiana Watermelon Association again this year.  Membership for the Southwest indiana Melon and Vegetable Growers Association is $15 per person and will be collected at the time of registration. Membership fee includes lunch on March 6th and also dinner at the winter technical meeting. Private Applicator Recertification Program credits will be available for an additional $10 per person and will be collected at the end fo the PARP session. You must attend all the PARP sessions to receive credit. Bring your PARP card of number with you. We also have CCH credits for category 1 and RT available. Please RSVP[Read More…]


​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…]


​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…]