The last few years certainly have been a challenge for many of us.  One unexpected consequence of the pandemic? Many who were quarantined at home decided to become gardeners.  Seed companies reported a boom in sales during the pandemic and, unlike other trends, (zoom cocktails, sourdough starters or dress shirts with pajama bottoms), it looks like gardening is here to stay.  To those new to gardening and to those more seasoned gardeners, we are here to help you every step of the way.  

We are the UConn Home and Garden Education Center, which is made up of three branches; the education center; the soil nutrient analysis laboratory; and the plant diagnostic laboratory. The education center is your first point of contact, where you will be greeted by horticultural consultants Dennis Tsui, Pamm Cooper and Marie Woodward.  Our mission is to answer your questions about anything related to home gardens and landscapes.  Our goal is to give you the best science-based response. In addition, we often rely on our other two branches for information, but that’s just the start of the services they provide. 

Dawn Pettinelli

Good gardening begins with knowing all you can about your soil, and The UConn Soil Nutrient Analysis Laboratory, headed by Dawn Pettinelli, Associate Cooperative Extension Educator, provides home gardeners a means to test the fertility of their soil and, through a comprehensive report, receive environmentally sound fertilizer and lime recommendations. 

Dr. Nick Goltz

Identifying the cause and nature of plant problems is often the key to maintaining healthy gardens and landscapes, and that’s where Dr. Nick Goltz, plant pathologist, comes in. He heads the Uconn Plant Diagnostic Laboratory and is an expert in diagnosing plant problems including diseases, insect pests and abiotic causes.  Dr. Goltz has a passion for plant health and integrated pest management, (IPM).  He especially enjoys working with homeowners to find holistic and comprehensive solutions for any plant problem they may have.

The three branches of the center are available to gardeners year-round.  To access our services, you can reach us by phone, (860-877-6271), by email, (ladybug@uconn.edu), or you can visit the center the Radcliffe Hicks Arena, 1380 Storrs Road, unit 4115, Storrs, CT. Our hours are Monday- Friday 8:30am -4:30pm.

Collecting and Submitting Samples

One of the most common questions we are asked is how to collect samples that are of good diagnostic quality.  Each laboratory website has detailed instructions on how to do so.  For the Soil Nutrient Analysis lab, there is a page with instructions on how to submit a soil sample at:

Soil Sampling Instructions

The plant diagnosis laboratory has a form with instructions on how to collect plant sample at the bottom of the submission page: 

Plant Submission Form

Samples can be mailed in or brought into our center during our office hours, (see above).

Emailing us with a question?

If you’re emailing us with a question or problem, it can be helpful, (but not necessary), to include a few photos with it.  This can help us determine our response. 

To learn more, you can visit our website: http://www.ladybug.uconn.edu/ where you will find the latest news, blogs and fact sheets about all things for your home garden.  We are ready to help make your home garden a success year after year. 

As we head into March, we begin to prepare for spring gardening once again! This includes tasks like wrapping up any necessary winter pruning and ordering seeds to plant for the upcoming year. With internet shopping of seed catalogues being more accessible than ever, many people will find that they can purchase the exact crop and cultivar they want with the push of a button. Varieties can even be filtered by yield or disease resistance.

Other people however, may wish to use heirloom seeds from their own or a neighbor’s garden, or organic seeds that aren’t pre-screened or treated for seedborne diseases. Although gardeners may have grown to anticipate some losses with these seeds due to seedborne diseases, a solution exists for many in the form of a hot water seed treatment (HWST).

What is a hot water seed treatment (HWST)?

It is exactly what you might expect: hot water is used to kill pathogens present on the surfaces of seeds before they are planted. For some types of plant diseases, this is an effective means to reduce disease incidence and give young plants the opportunity they need to become established and grow well. Seeds are “prepped” for treatment by first being submerged in a lukewarm water bath of 100 degrees Fahrenheit for 10 minutes. The seeds can then be moved to a bath set at the “treatment temperature”, which varies by crop type. After treatment, the seeds are gently, but thoroughly dried-off so they do not germinate prematurely.

What types of seeds can undergo HWST?

Many types of seeds can undergo HWST for disease mitigation, but generally it is performed on small and hardy seeds. Large, fleshy seeds such as beans or pumpkin seeds may benefit from HWST in terms of disease reduction, but are more sensitive to damage from the hot temperatures and may have accordingly lower germination rates. Therefore, we only recommend HWST with seeds whose germination rates have been shown to be minimally impacted by the high temperatures. Additionally, seeds that have already been treated with HWST or fungicides, or those that have seed coatings (often these are a different color than uncoated seeds), should not be treated.

What diseases will HWST target?

There is ongoing research into what diseases can be successfully mitigated with HWST. Treatment efficacy varies by crop, but generally the diseases are those that will show up shortly after germination, while the plants are still seedlings. The UConn Plant Diagnostic lab and other university extension services that offer HWST will list the types of plants recommended for treatment and the diseases that can be controlled. Visit https://plant.lab.uconn.edu/hwst/ to find out more.

Nick Goltz, DPM