2023 NovEMBER rESEARCH sPOTLIGHT

DAVID MOREIRA

The GCPSA is pleased to feature David Moreira for November. David is a Ph.D. student in the Department of Entomology and Nematology, under the mentorship of Dr. Johan Desaeger at the UF IFAS Gulf Coast Research and Education Center. David's dissertation research is focused on the use of anaerobic soil disinfestation (ASD) for the management of plant-parasitic nematodes. 

I sat down with David to discuss his motivations for pursuing a career in agriculture, the joys and pains of being a Ph.D. student, and his immediate plans after graduate school.  

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What are your inspirations/motivations for pursuing a career in Agriculture?

From an early age, growing up in Honduras, I was exposed to agriculture through my parents who both have careers in agriculture. This instilled in me a high level of respect and admiration for those who help feed the world. After graduating from high school, I was able to follow in my father’s footsteps and attend Zamorano University to obtain my bachelor's degree in agronomy. There, I was exposed to the rigors of agriculture and challenged to be resourceful to solve problems around food security. I became forever enamored with the idea that world hunger and malnutrition could be eliminated someday and that in the process of doing so, we can improve the livelihoods of all.

Can you provide us with a brief overview of your research focus at UF IFAS GCREC?

I am pursuing a PhD in Entomology and Nematology, and my research is currently focused on the use of anaerobic soil disinfestation (ASD) for the management of plant-parasitic nematodes. We are utilizing chicken litter and molasses along with cover crops to generate anoxic soil conditions before planting on beds covered with plastic mulch. This promotes the reproduction of anaerobic bacteria which in turn produce volatile compounds that deter soil-borne pathogens including nematodes and weeds. The first chapter of my dissertation will focus on the implementation of ASD in Florida on organic strawberries and the second will focus on the use of ASD in Honduras on export watermelons. As part of my minor in Agricultural Education and Communication, we will also be conducting surveys with small-scale growers in the region of Valle del Yeguare in Honduras to identify the strengths and challenges they are facing regarding plant-parasitic nematodes. That will also lead to the creation of a “practical nematology handbook” which will help growers diagnose plant-parasitic nematode problems in their crops and offer information on the options available for their management. 

What challenges did you encounter in graduate school and how did you manage them?

Coming to the US to obtain my graduate degrees at the University of Florida was not easy because of the high level of competition among candidates from around the world. I understood I needed to find the right opportunities to show my ability to be a successful graduate student. This came through school-related educational tours which allowed me to first visit Florida in 2016 and meet Dr. Richard Raid who later took me in as an intern at the Everglades REC working on integrated pest management. That led to a second internship later at the Gulf Coast REC with Dr. Johan Desaeger in plant nematology where I later completed my master’s degree and where I am currently pursuing my PhD degree. Once in graduate school, challenges continued to arise, and it is important for me to find ways to keep myself focused and motivated. I have a hard time dealing with feelings of depression and anxiety which pushed me to prioritize certain things in my life. I value family the most and I decided to give it as much attention as I do to my research to maintain a healthy work-life balance. This can be especially challenging for those who come from afar or don’t find it easy to make new friends. So, I believe it is very important to communicate with your advisor what your needs are and look for ways to explore your personal hobbies and other passions aside from work.

Can you talk about your time serving as GCPSA Treasurer in 2020 and Program Committee Chair in 2021 and its impact on how you balanced academic, work, and personal life commitments?  

I believe in participating and being active in the problem-solving process, so it was not a hard decision for me to join the GCPSA. I felt motivated to help create a better community for my fellow graduate students, postdocs, interns, and scholars at GCREC. During my time as Treasurer and Program Committee Chair, we were able to organize numerous research events and tackle challenges that post-docs and graduate students were facing. The GCPSA is set up in an organized yet flexible manner that allows anyone to participate. My involvement did not detract from my work or personal life.

Can you tell us more about how you became a Field Science Intern at Corteva? What are your responsibilities and your typical weekly schedule as a Field Science Intern? 

I am interested in getting more exposure to the industry and wanted to do this without having to pause my graduate research for a whole semester. My internship with Corteva allows me to reinforce skills and knowledge directly related to my research. The UF International Center along with Human Resources at GCREC helped me to figure out how to set up a part-time internship where I work 1 to 2 days a week at Corteva in Myakka and the rest of the week at GCREC. This is possible through the Curriculum Practical Training Program (CPT) which allows me to work with Corteva as an intern while I am on an F1 student visa. It has been a great experience so far; I have learned innovative ways to conduct research related to plant-parasitic nematodes and crop protection with a focus on growers’ needs. The internship will run through the Fall and will allow me to participate in company field days and interact with Corteva field scientists throughout the US.

What do you do for relaxation?

I enjoy family the most so my relaxation comes from time spent with my fiancée Jackie and our two cats Sammie and Fifi. We enjoy the outdoors and try and go on trips and explore whenever we are able. Recently, we visited Maine and spent a week in the mountains, exploring Acadia National Park and conquering an 11-hour hike up Mount Katahdin. We also have found immense joy in camping and free diving in the numerous freshwater springs and kayaking in rivers and swamps across Florida. I am passionate about cooking, and I wish I could spend more time in the kitchen. Our backyard garden is one of my main havens allowing for a quick breath of fresh air and a taste of nature when caring for my ornamental plants and small vegetable beds or just watching the birds and squirrels frolicking around. I also find peace in communicating with my parents back in Honduras and remaining connected to my culture and heritage.

What are your immediate plans after graduating from your graduate program?

I remain focused on completing my research as a graduate fellow, and once completed I want to pursue a position that allows me to keep both my passion for agriculture and love for family thriving. I am interested in securing a position in the industry where I can bring my skills as a researcher and educator to improve the livelihoods of growers and those who depend on them. Through my internship with Corteva, I hope to identify a path to reach that goal. In the long run, after spending some time in the industry, I would like to become an entrepreneur and build an even more impactful effort towards achieving food security.

What advice would you give someone just starting their research journey?

Carry your passion for science with honor and pride. It is a tough field regardless of your research focus. Be patient in the learning process and do not try to meet everyone else’s needs before yours. Set a goal and start identifying the path to complete it because the journey is very different for each student.  Open your mind and be curious about the world around you. Don’t be afraid to question things or people, challenge yourself to think of a different way to achieve the same objective; it will be necessary in an ever-changing world. Finally, always believe in yourself even if you feel you don’t deserve it, and enjoy your victories. Only you know how hard it was to achieve them! 

Testimonial from Dr. Johan Desaeger

David started as an intern in February 2017 as one of my first recruits. We had very few people in the lab at that time and we were fully focused on acquiring all new equipment for the new nematode lab, starting nematode cultures, and setting up greenhouse and field trials. David was very instrumental in all of this, and his drive and motivation were the main reasons why I offered him an MS graduate assistantship. David became my first MS student, his research project focused on evaluating how new nematicides affect plant parasitic, as well as beneficial, nematodes. During the COVID pandemic, David’s commitment was critical for the survival of our nematode cultures, as well as the continued data collection in our field trials. His current Ph.D. project is focused on adapting integrated nematode management practices from Florida to Central America. David is perfectly suited for this project, being from Honduras. David has also been one of the driving forces behind the recruitment of Zamorano interns at UF. He has worked closely with interns, helping them with their research projects and teaching them the required nematology lab and greenhouse skills. 

David is a very engaged individual. He was active at the GCREC as the treasurer of the GCPSA and is a member of the Diversity and Inclusion Committee. He also started our labs’ social media accounts and is one of the founders of the Active Plant Nematologists, an international scientific community dedicated to promoting plant nematology through collaboration among professionals and citizen nematologists worldwide. When hurricanes Eta and Iota hit Central America in 2020, causing catastrophic flooding and human suffering, David took the initiative to collect relief supplies for his beloved home. He not only organized the collection, but also rented a van to collect and load the supplies from UF Gainesville, several REC centers, and a USF facility, and arranged with a banana shipping company in Ft Lauderdale to have the supplies shipped for free to Honduras. 

David is a great lab member with a genuine passion for nematology. It's scary to realize that he has been in the nematology lab almost as long as myself … hopefully, he won’t have to see me retire. 


Interviewer: Leo Gaspar

note: interview answers have been edited for brevity