- Author: Kathy Keatley Garvey
At least, the UC Davis headlines!
We're delighted to see that UC Davis undergraduate student Juan Amado “Ado” Sales, a member of the Research Scholars Program in Insect Biology and a laboratory assistant for nematologist Shahid Siddique, UC Davis Department of Entomology and Nematology, has just been awarded a coveted summer fellowship from the UC Davis Innovation Institute for Food and Health (ILFH) to do independent research on parasitic nematodes.
As we wrote in a news story today, Sales submitted his successful research application on “Toward a More Resistant Plant: Uncovering Plant Host Targets of Novel Plant Parasitic Nematode Effectors.” He is one of only four students to be awarded the summer fellowship.
Sales, who is on track to receive his bachelor's degree in biotechnology (with an emphasis on plant biotechnology) in June 2022, draws high praise from Siddique.
“Ado is a highly gifted student with a strong interest in agriculture and plant biology,” said Siddique. “I have really enjoyed one-on-one interaction with Ado and I have observed him growing academically and intellectually. He has a level of maturity in his research, including contributing ideas for troubleshooting, that I had no hesitations about giving him the space to continue his project independently. The IIFH fellowship program will add to his personal and professional growth and contribute to the experience of first-generation immigrant students like himself.”
ILFH awards Undergraduate Research Center Fellowships (URC-IIFH) to faculty-guided undergraduate students who perform research related to food, agriculture and health. Each fellow receives a summer research stipend, and funds for travel and/or research supplies. The fellows also will participate in professional development and entrepreneurship training, including the on-campus Entrepreneurship Academy. They will present their research results at the annual IIFH Innovator Summit in spring 2022, with opportunities to participate in the UC Davis Little Bang poster competition and the Big Bang competition.
His research involves RNA extraction, cDNA synthesis, Polymerase Chain Reaction (PCR), and gel electrophoresis, as well as GreenGate Cloning of plant parasitic nematodes genes. His skills also include seed germination and nematode hatching for plant-nematode assays, and the microscopic evaluation of nematode damage on plants.
Sales' journey to the Siddique lab began in May 2019 when he was selected a research scholar in the campuswide program, Research Scholar in Insect Biology (RSPIB), launched by UC Davis Entomology and Nematology faculty Jay Rosenheim, Joanna Chiu and Louie Yang to provide undergraduates with a closely-mentored research experience in biology. Students join in their first or second year and are placed in a faculty mentor's laboratory where they receive ongoing training and career guidance in research and scientific writing. They also learn how to present their research results at professional scientific meetings and to prepare applications for graduate or professional schools.
His research involves RNA extraction, cDNA synthesis, Polymerase Chain Reaction (PCR), and gel electrophoresis, as well as GreenGate Cloning of plant parasitic nematodes genes. His skills also include seed germination and nematode hatching for plant-nematode assays, and the microscopic evaluation of nematode damage on plants.
Sales' journey to the Siddique lab began in May 2019 when he was selected a research scholar in the campuswide program, Research Scholar in Insect Biology (RSPIB), launched by UC Davis Entomology and Nematology faculty Jay Rosenheim, Joanna Chiu and Louie Yang to provide undergraduates with a closely-mentored research experience in biology. Students join in their first or second year and are placed in a faculty mentor's laboratory where they receive ongoing training and career guidance in research and scientific writing. They also learn how to present their research results at professional scientific meetings and to prepare applications for graduate or professional schools.
Sales enrolled in Rosenheim's class, BIS2B (Introduction to Biology, Ecology and Evolution) and the rest is history, as they say.
It was in the Rosenheim class that Sales learned about RSPIB, joined the Siddique lab, and applied for--and received--the summer fellowship.
Well done, Ado Sales.
Next step? Explaining what the study of nematology (microscopic round worms) is all about? Read what Siddique says about plant parasitic nematodes.
- Author: Kathy Keatley Garvey
Lewis will cover the life and legacy of African-American entomologist and civil rights advocate Margaret Collins (1922-1996) at his presentation on Tuesday morning, Nov. 2. The long-awaited conference will be hybrid, that is, both virtual and in-person.
Collins will be "the fourth woman and second Black entomologist to be the subject of the Founders' Memorial lecture in the award's 64-year history," according to an ESA news release. (See list of previous recipients.)
'The Termite Man'
Vernard Lewis, who holds a doctorate in entomology (1989) from UC Berkeley, is a recognized national and international authority on drywood termites. He is known for his pioneering research on detection innovations and nonchemical methods of control. Lewis joined the UC Berkeley faculty in 1990 and was the university's first African-American faculty-member hired in the 150-year history of the Rausser College of Natural Resources. He retired July 1, 2017 from a 35-year career as an urban entomologist, the last 26 years as a Cooperative Extension specialist. As Lynn Kimsey, director of the UC Davis Bohart Museum of Entomology and UC Davis distinguished professor of entomology told us in a Bug Squad blog in July 2017: "He was the best; knowledgeable, personable and engaged. I'm really annoyed that he retired."
"He was always the go-to person in Extension when it came to termites, and he had that special personality which enabled him to immediately engage with people," related UC Davis distinguished professor Frank Zalom, a past president of the 7000-member ESA. "I always got the feeling that he genuinely liked what he did, and it showed."
During his career, Lewis focused his research on a variety of urban pests, including not only termites, but ants, bed bugs, cockroaches and wood-boring insects. He authored more than 150 refereed and trade magazine articles and book chapters on termites and other household insect pests. He delivered more than 700 presentations to widespread audiences. Lewis was inducted into the National Pest Management Association Hall of Fame in 2016. Since achieving emeritus, he has been spending his time on university and industry committees and public boards dedicated to increasing diversity, equity, and inclusion for underrepresented minorities and women into STEM careers.
In June 2020, Brite Energy Innovators paid tribute to Lewis as one of the world's Amazing Black Scientists. An excerpt: "At UC Berkeley, Lewis famously constructed a 400-square-foot (37-square-meter) wooden building near the campus for investigating pest insect detection and control; The structure was affectionately known as 'Villa Termiti.' Built in 1993, the building temporarily housed rotating communities of bedbugs, termites, beetles and ants, while Lewis and other scientists studied the insects' habits and tested their resistance to different methods of extermination. These included exposure to X-rays, microwaves, liquid nitrogen and fumigation, according to UC Berkeley."
Another excerpt from Amazing Black Scientists: "Lewis also worked to promote diversity in entomology, and participated in outreach programs to introduce underserved youth to life sciences, insects and biodiversity." He was one of 20 researchers featured in ESA's 2015 book “Memoirs of Black Entomologists,” designed to encourage minority students to pursue careers in science.
Margaret James Strickland Collins was known as "The Termite Lady" during her entomological career that spanned five decades. She engaged in extensive research on termites that included identifying a new species, Neotermes luykxi. "Her pioneering studies on the mechanism and evolution of termite desiccation resistance across various habitats provided foundational knowledge for generations of entomologists, field biologists, and ecologists," said Lewis, who wrote about her in a piece published June 1, 2016 in BioOne journal.
His abstract: "Often legends go unrecognized for their achievements in science and the betterment of society. In the case of Margaret Collins, it has been almost 20 years since her passing, and except for appreciation by a small cadre of termite experts, her contributions to entomology have received scant notice. However, her work and legacy have stood the test of time, and even today, she is considered, and often cited as, the definitive source for differences in toleration and resistance to drying among species of termites. At her core, Margaret was a field biologist, and she demonstrated it through her travels and termite collection trips to a dozen countries. Her long and illustrious career included publishing of scientific papers, tenured faculty positions, and service as a curator of the termite collection at the National Museum of Natural History, Smithsonian Institution, in Washington, District of Columbia. Margaret achieved many firsts during her life. She was the first African American female to be awarded a Ph.D. involving entomology at a major university. In addition, she was the first woman graduate student for the legendary isopterist and Professor of Zoology, Alfred E. Emerson. Her passion for termites remains highly visible in her published works. Her passion for her family and her strong support of civil rights for women and African Americans were less visible except to those she knew personally."'
Born in Institute, W.Va., on Sept. 4, 1922, Margaret was recognized as a child prodigy at age 6, "as evidenced by her being awarded the privilege to check out books at the West Virginia State College Library," Lewis wrote in the journal article. Following her high school graduation at age 14, she went on to receive her bachelor's degree in biology from West Virginia State College in 1943, and her doctorate in zoology in 1949 from the University of Chicago. Her thesis: Differences in Toleration of Drying among Species of Termites (Reticulitermes).
Collins was one of the first African-American women to receive an advanced degree related to zoology/entomology. "Those of us with collegiate degrees are well aware of the challenges and obstacles that can drain enthusiasm and delay completion, which include lack of funding, being away from home, and difficult and demanding courses and class loads," Lewis wrote. "Margaret had all of these, plus more."
"Upon receiving her Ph.D. in 1950 at the University of Chicago, Collins became the first African-American female entomologist," Lewis noted. "In the mid-'50s while on the faculty of Florida A&M, her invitation to speak at a local predominantly white university on biology and equity was cancelled due to a bomb threat. During the Florida A&M Student Council bus boycott of 1955 to protest racial inequality, Dr. Collins volunteered to drive people to work. These activities led to her being closely watched by the police and FBI."
In 1979, Collins coordinated an American Association for the Advancement of Science symposium on "Science and the Question of Human Equality," and later that year, published a book with the same title. The book is "an interdisciplinary look at racism and science, investigating the biological and social realities of individual and group differences," according to the publisher.
Love of Science
Just like Margaret Collins, Lewis shares a love of termites, a love of science, and a love of public service. In the ESA news release, ESA President Michelle S. Smith praised Lewis for his "remarkable career in both research and extension" and as "a role model for current and future generations of insect scientists. His pioneering spirit echoes that of Dr. Margaret Collins, and her story of determination, curiosity, and perseverance will be a perfect complement to our annual meeting showcasing adaptation and transformation in insect science."
The ESA meeting is appropriately themed "Adapt. Advance. Transform."
Yes! "Adapt. Advance. Transform." And let's add one more: "Recognize!"
We're delighted to see this much deserved recognition for two legendary entomologists.
- Author: Kathy Keatley Garvey
No, this is not a historical reference to that famed rock band from Liverpool.
These are real beetles. The insects.
Lynn Kimsey, director of the UC Davis Bohart Museum of Entomology and a UC Davis distinguished professor of entomology, is fielding scores of calls--some panicked calls--about a beetle invasion in Davis.
In response, Kimsey has just created a public service announcement (PSA) of what they are (they are red flour beetles) and what folks should do and not do (don't panic).
"We have had a lot of reports and panic about small beetles invading people's houses in Stonegate and other parts of Davis," she relates on YouTube, "and just thought we ought to just clear the air a little bit with this and tell you a little about these guys. So as you can see they are very tiny. These are grain beetles. They are called the red grain flour beetle." They are Tribolium castaneum.
"They feed on dried, starchy materials," she says. "They will even occasionally feed on things like raisins, but nothing else. They are a stored product pest. They are probably coming out of a field of grain--grain fields were harvested in the last month or so. So they are coming out of the fields and they are flying at night."
Kimsey points out that they "will come into homes because of the lights. Also, the north wind we had blowing for awhile that didn't help."
The fastest way to get rid of them? "Vacuum them up," Kimsey says. "Dispose of the bag. Don't spray because it won't do any good."
She also urges folks to store their flour and other grains in tight-fitting lidded plastic containers, which "will prevent beetles as well as meal moths and things like this from getting in and starting an infestation."
If you do find an infestation, Kimsey says, the "fastest way to take care of it is to either put the material that is infested in the freezer, throw it out, or put it in the sun. It is still edible. These beetles are not harmful. They don't contaminate materials, unless you don't like eating beetles."
Kimsey also acknowledges it is "quite possible to get these beetles from a product you bring in from the store."
"And that happens," she says. "It is just one of those things. So what I would say is take a deep breath. This too shall pass."
Worldwide Pest
The red flour beetles are a worldwide pest of stored products. The adults are reddish brown, about 1/8th of an inch long, and oval and flattened in shape. They attack flour, cereals, pasta, biscuits, beans, and nuts, among other items, according to Wikipedia. "The United Nations, in a recent post-harvest compendium, estimated that Tribolium castaneum and Tribolium confusum, the confused flour beetle, are "the two most common secondary pests of all plant commodities in store throughout the world."
The females of both species are polyandrous, that is, they will mate with multiple different males.
The UC Statewide Integrated Pest Management Program (UC IPM) describes the red flour beetle (see photo of the red flour beetle) as a common pantry pest.
"Pantry pests usually enter your home in an infested package of food," UC IPM says. "You might not notice these small insects until you see moths flying around your kitchen or beetles crawling in your food. Get rid of these pests by removing infested food, tightly sealing stored dry food, and thoroughly cleaning the area."
UC IPM offers these tips on its website for preventing a pantry pest infestation:
- Store food in containers with tight-fitting lids, not plastic bags.
- Store bulk goods like pet food in airtight containers.
- Keep certain infrequently used food like flours, spices, and grains in a freezer if possible.
- Wash old containers before filling them with new food.
- Don't mix old and new food together.
- Clean shelves, bins, and other food storage areas regularly.
Meanwhile, listen to Professor Kimsey's PSA on YouTube and check out the images.
The beetles. They're not just coming. They are here.
- Author: Kathy Keatley Garvey
Honey bee experts at UC Davis and Oregon State University (OSU) will teach the comprehensive, asynchronous course, "Honey Bees and Beekeeping for Veterinarians." Registration is now underway at http://www.wifss.ucdavis.edu/beevets/. The course is intended for veterinarians, veterinary technicians, apiculture educators, apiary inspectors and beekeepers in California and Oregon. Participants are encouraged to register today; the course will be available only until June 30, 2020.
The U.S. Food and Drug Administration's Veterinary Feed Directive (VFD) addresses antibiotic resistance and antimicrobial use in the feed or water of food-producing animals. The VFD implementation aims to ensure the judicious use of antimicrobials, and to minimize the impact of their use in colonies.
This means that beekeepers now need to establish a veterinarian-client-patient relationship to obtain the antibiotics they need to manage foulbrood and other microbial diseases, according to the course instructors.
The training is being offered by the laboratory of Extension apiculturist Elina Lastro Niño, affiliated with the UC Davis Department of Entomology and Nematology and the UC Agriculture and Natural Resources; the UC Davis School of Veterinary Medicine; and OSU.
Course authors and developers are the Western Institute for Food and Security (WIFSS), UC Davis; Elina Niño and Bernardo Niño; Jonathan Dear, UC Davis School of Veterinary Medicine, and Ramesh Saglii, OSU's Honey Bee Laboratory.
Instructors said that participants, upon completion of the course, will be able to:
- Describe the importance of honey bees
- Explain the veterinarian's role in commercial beekeeping
- Recognize distinguished characteristics of honey bees
- Recognize specialized beekeeping equipment, including personal protective equipment (PPE)
- Recognize the components of a hive inspection
- Describe honey bee immunity against pathogens, pests and diseases
- Describe common pests and diseases that may impact honey bees
- Describe how the Veterinary Feed Directive (VFD) governs the use of antimicrobial drugs in apiculture
Honey bees are responsible for pollinating one-third of the American diet. They pollinate such specialty crops as apples, melons, cranberries, pumpkins, squash, broccoli, and almonds. However, annual honey bee colony losses are high due to a variety of environmental and biological causes, including bacterial diseases. Historically, beekeepers have self-prescribed antibiotics to control these diseases.
Funding for the development of the “Honey Bees and Beekeeping for Veterinarians” course was made possible by the U.S. Department of Agriculture (USDA) Specialty Crop Multi-State Program through an agreement between the California Department of Food and Agriculture and The Regents of the University of California, Davis (agreement number 17-0727-001-SF).
- Author: Kathy Keatley Garvey
At a recent visit to the UC Davis Ecological Garden at the Student Farm, we watched a honey bee, Apis mellifera, and a lygus bug nymph, Lygus hesperus, foraging on a batchelor button, Centaurea cyanus.
The bee: the beneficial insect.
The lygus bug or Western tarnished plant bug: a pest.
The lygus bug, which punctures plant tissues with its piercing mouthparts, was there first, but no matter. The bee joined in, edging closer and closer until they touched.
In photography insect circles, that's a "two-for"--two insects in one image.
The bee finally buzzed off, leaving the lygus bug to "dine" alone.
The lygus bug, distinguished by a conspicuous triangle on its back, is a very serious pest of cotton, strawberries and seed crops, including alfalfa. Scientists estimate that in California alone, the pest causes $30 million in damage to cotton plants each year, and at least $40 million in losses to the state's strawberry industry. The insect is also a pest of numerous fruits and vegetables, including apples, pears, peaches, eggplant, tomato, potato, artichoke, lettuce, sugarbeet, and beans. See what the UC Statewide Integrated Pest Management Program (UC IPM), says about the pest.
What do they look like? "Adult lygus bugs are green, straw yellow, or brown with a conspicuous yellow or pale green triangle on their backs," UC IPM says. "Nymphs are light green...Lygus can move into gardens or orchards from weeds, especially when they dry up. They are a particular problem in beans, strawberries, and orchard crops, feeding on developing flower buds and fruit. Fruit may become blemished and discolored, deformed, or twisted and may develop depressions or pustules."
Cotton? "Lygus bugs," says UC IPM, "migrate to cotton from other hosts, so management of this pest begins with assessing its populations outside the field. Check for them on weeds, in nearby alfalfa, and in other crops, and keep in touch with your pest control adviser, Extension agent or Farm Advisor for area-wide information on lygus bug populations. Proper management of alfalfa harvest can reduce damaging migrations to cotton."
Cooperative Extension specialist Ian Grettenberger, UC Davis Department of Entomology and Nematology, works closely with farmers in their lygus bug battles.
