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How Many Dollars Are Falling Off Your Greenhouse Bench?

Author: Paul Thomas

Losing plants to disease and insects, nutrition or neglect happens to all of us. Our goal for publishing the e-Gro series of alerts and seminars is to give you advanced awareness of issues and potential way to address them.  Still, losses happen, and in my recent greenhouse visits, I started noticing the trash cans were staring to hold plants that had to be trashed.  From January through early March, losses are traditionally very low, and unless there was a plug shipping problem, crops seem to do pretty well.  Right about now, we start seeing the first losses due to diseases and insect issues.  As the season goes on, we add losses due to missed irrigations, mishandling, and nutritional issues.  By the end of the growing seasons, we see loses due to leggy stretched or beyond market stage plants being dumped.  When I chat with growers, the usual statement is:  “well, it’s only 2% of the crop, or we kept losses to under 10% this year…” My response?  “Oh my….”


See the entire article here.

Three Factors That Can Impact The pH Of Growth Media

Author: Brian Sparks

The pH of water used in plant production is important when it comes to mixing with pesticides and dissolving micronutrients in water. However, according to Jose Chen Lopez, a horticulture specialist with Premier Tech Horticulture, the water pH has little influence on the pH of the growing medium. Other factors impact the pH of the growing medium.

See full article here.

Foliar Absorption of Nutrients Learning Module

It is so refreshing to see companies doing great things to educate growers! Harrell’s LLC has a tradition of doing this and the following product is a wonderful example of that.

Thanks to Harrell’s LLC for allowing us to re-post.

Welcome to the Foliar Absorption of Nutrients Learning Module

This learning module explains how plants absorb liquid nutrients through their foliage, and how to maximize uptake in your nutritional spray program.

Enter Here

Let’s not forget 2007…

The forecast is eerily reminiscent of 2007. Let’s not forget that the last frost date for north GA is a month out! Please consider the prospect of a late freeze when considering if you should remove cold frame covering. I wouldn’t do it until April 10…


USDA adds seven (7) Georgia counties to the Emerald Ash Borer Quarantine Area

On February 22, 2016 The USDA Animal and Plant Health Inspection Service (APHIS) added Barrow, Cherokee, Douglas, Fannin, Habersham, Murray, and White Counties in Georgia to the list of regulated areas for the Emerald Ash Borer (EAB). The Federal Quarantine specifically regulates the interstate movement of EAB-host wood and wood products from the quarantined areas in Georgia including firewood of all hardwood species, nursery stock, green lumber, waste, compost, and chips of ash species.


There are now 19 Georgia counties under the EAB Regulatory Quarantine. See The Georgia Forestry Commission or Georgia Department of Agriculture website for a map and list of the regulated Georgia counties and for information about EAB identification, damage symptoms, photographs, life cycle and quarantine regulations.


The Emerald Ash Borer (EAB) is a non-native and highly invasive insect that has killed tens of millions of ash trees in 25 states and in Canada since it was first discovered near Detroit, Michigan in 2002.  It is thought that EAB was accidently introduced into the U.S. from Southeast Asia in infested shipping containers and materials. EAB kills both vigorously growing and weakened ash trees.

The American Chestnut Foundation – Georgia Chapter Meeting

Meeting Description
The GA-TACF annual meeting is an exciting opporunity to learn more about American chestnut restoration research in Georgia and national restoration efforts! Attendees will hear research presentations from Georgia scientists as well as from nationally recognized plant geneticist William Powell, who leads ground-breaking transgenic work with blight-resistant chestnuts at SUNY College of Environmental Science and Forestry. Also, attendees will tour laboratory and horticultural facilities involved in chestnut research at the University of Georgia. It is free to attend the meeting, and box lunches will be available to attendeeds for $7.
Please let us know if you can attend by RSVP-ing on our Eventbrite page by March 26th! Also, if you plan to purchase a box lunch, please select your sandwich preference when you register!
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Meeting Schedule
Warnell School of Forestry
9:00 – 9:30 Arrive, sign in, coffee, pay for lunch
9:30 – 10:00 Convene & membership meeting, Mark Stoakes
10:00 – 10:10 Welcome address, Dean Green
10:10 – 10:30 Update on breeding program, Martin Cipollini
10:30 – 10:35 American chestnut remaining in the wild, Nathan Klaus
10:35 – 11:15 Keynote address & presentation, Bill Powell
11:15 – 12:30 Embryogenesis & clonal propagation presentation and lab tour, Scott Merkle
12:30 – 1:30 Lunch; depart for Watkinsville Horticultural Research Farm
Watkinsville Hort Research Farm
2:00 – ~3:30 Tour Hort Farm backcross orchard, Ryan McNeil
Meeting Location Map
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Have a question? Email us at
Saturday, April 9, 2016 from 9:00 AM to 3:30 PM (EDT) – Add to Calendar
Warnell School of Forestry and Natural Resources, University of Georgia – 180 E. Green St.. Building 1, Room 304. Athens, GA 30602 – View Map