Source: Insect Diet and Rearing Institute, LLC submitted to NRP
DEVELOPMENT OF A NOVEL SYSTEMATIC, INTEGRATED COMPONENT APPROACH TO PRODUCE ARTIFICIAL DIETS FOR MONARCH BUTTERFLIES, QUEEN BUTTERFLIES
Sponsoring Institution
National Institute of Food and Agriculture
Project Status
COMPLETE
Funding Source
Reporting Frequency
Annual
Accession No.
0203145
Grant No.
2005-33610-15564
Cumulative Award Amt.
(N/A)
Proposal No.
2005-00490
Multistate No.
(N/A)
Project Start Date
May 1, 2005
Project End Date
Jun 30, 2007
Grant Year
2005
Program Code
[8.10]- (N/A)
Recipient Organization
Insect Diet and Rearing Institute, LLC
5622 N CALLE DE LA REINA
Tucson,AZ 85718-4412
Performing Department
(N/A)
Non Technical Summary
Millions of brush footed butterflies, are sold yearly for education, research, environmental concerns, and for ceremony. However, monarchs and are among the most popular products. Also, because of environmental concerns, monarchs are important to ecologists, educators, and biotechnologists. However, monarch availability is limited and costly because rearing requires fresh milkweeds. We will develop an integrated approach to diet development and a diet that simulates milkweed hosts for monarch larvae. It will contain extracts that offer the chemical signature of optimal hosts and will contain balanced nutrients that parallel natural host plants. The diet will provide nutrients in forms that meet bioavailability needs to parallel nutrient formats in natural hosts. It will be desiccated to make it stable and resistant to deterioration. It will support growth of healthy adults with normal biological functions, including protective chemical profiles. The final product will be inexpensive enough to promote increased sales of monarchs for the specified purposes. Importantly, the integrated approach to be developed in this project will be applicable to diet development for other butterflies and insects that cannot now be reared on diets, especially weed biocontrol agents. A. This project establishes the detailed feeding processes of monarch and queen butterflies. B.The purpose of this study is to develop a practical and economical artificial diet for monarch butterflies.
Animal Health Component
100%
Research Effort Categories
Basic
(N/A)
Applied
100%
Developmental
(N/A)
Classification

Knowledge Area (KA)Subject of Investigation (SOI)Field of Science (FOS)Percent
21131101010100%
Goals / Objectives
The objectives of this work are to determine the specific feeding behavior of monarch and queen butterfly larvae and to apply this information to development of an artificial diet and a diet-based rearing system. The feeding on natural host plants (various milkweed species) will be analyzed through microscopy and analytical chemistry to determine the exact feeding targets of the larvae with special attention to the nutritional characteristics of the ingested host plant material (crude protein, lipid, carbohydrate, and minor components such as minerals and antioxidants) and the extent to which the larvae utilize or avoid the toxins and latex that are present as defense mechanisms in the milkweed family. This detailed micro-feeding profile will be used as a model for artificial diets to be made with as much commercially available diet/nutritional components as possible. In association with the nutrients, the appropriate extracts from milkweed will be added in order to maintain feeding stimulation on the part of the monarch and queen larvae. Also, and very importantly, the natural milkweed components will be presented as part of the diet formulation in a format that retains the signature of the milkweed plant so that the diet will be an optimized compromise between the convenience and economy of an artificial diet and the benefits of the natural milkweed diet. It is further anticipated that the comprehensive understanding of feeding dynamics will provide a baseline for diet presentation format, which includes the shape of the diet (flat,leaf,like flakes versus cubes or cylinders) and the texture of the diet (large vs. small particles and gel strengths that approximate the bite-feel of natural milkweed leaves). Once these refinements are made, the scale of diet production will be adjusted and potential for diet production will be commenced using large scale implements that are used in commercial food applications. We anticipate using large scale equipment such as flash sterilizers and/or twin-screw extruders to implement the large scale diet production. These accomplishments will position Insect Diet and Rearing Institute, LLC strategically to proceed to the next level of mass production of diet-based rearing systems for monarch and queen butterflies. The product will be protocols for economical artificial diets for commercial production of monarch and queen butterflies. It will offer a system of processing host plant materials and commercial nutrients in ways that make them excellent artificial diets for many other phytophagous arthropods, including weed eaters. The formulations will be useful to the more than 100 butterfly producers who sell these insects for education, research, environmental, and celebratory functions. The cost reduction will increase availability of the healthy insects to a much wider variety of customers. The Insect Diet and Rearing Institute will make the information available to industry, educational institutions, and researchers on a contractual basis as it does with other insect diets developed here.
Project Methods
Monarch and queen larvae will be observed and their feeding behavior recorded using video microscopy so that a detailed analysis can be made. Feeding strategies by monarch larvae include severing vascular bundles in leaves and using pin-point feeding, avoiding reservoirs of latex and toxic metabolites. Monarch and queen larvae, though they are adapted to thrive on milkweeds that would be lethal to other insects, must feed cautiously to avoid ingestion of excessive toxins from hosts. Preliminary studies showed that gut contents and feces reflect that monarchs are selective of materials, and special staining techniques show that monarchs manipulate plant tissues that are spit out and not ingested. Fluorescence microscopy will be used to reveal which specific tissues larvae select. Details of monarch feeding at this level of organization will reveal the extent to which the laticifers (system of latex and toxic cardenolides) are avoided or utilized. These observations will be made with all developmental stages to determine the effects of size of larvae on ingestion rates. The specific tissues selected by the larvae will be excised and analyzed by HPLC determine the protein, lipid, and micronutrient concentrations. As the limitations of resolution by light microscopy are reached, the investigation using electron microscopy will be undertaken, primarily with scanning electron microscopy (SEM). SEM will be used in conjunction with freeze-fracture and critical point drying of leaves and stems to help reveal the extent to which larvae avoid certain target tissues and select others. The total, integrated base of information derived from the various types of microscopy and analytical procedures will be used to select milkweed tissues that will be used to supplement artificial diet ingredients. Steps in Overall Diet Development 1. Micro-feeding patterns and digestive efficiency of monarch larvae feeding on natural host will be established. 2. Non-milkweed nutritional package will be developed. 3. Development of milkweed additives will be compared(extracts versus solid meal/flour). 4. Nutrient package with milkweed additives will be made. 5. Integrated diet will be formulated. 6. Test new diets will be compared according to micro-feeding digestive efficiency information. Processing Steps for Milkweed Meal 1. Trenched leaves (from stem or petiole) will be harvested. 2. Desiccation procedures will be optimized (freeze dry or convection heating). 3. Size reduction will be optimized. (shearing or grinding) 4. Protective coating will be established using A.Hydrocolloids B.Hydrocolloid synergists C.Antioxidants 5. Re-drying will be developed and optimized. 6. Size reduction of coated material will be optimized.

Progress 05/01/05 to 06/30/07

Outputs
OUTPUTS: With the execution of our SBIR grant, we conducted and analyzed many experiments with scores of bioassays testing various milkweed extraction procedures, nutrient bases, nutrient supplements, preservatives, stabilizers (and other diet functional components), and testing many environmental conditions. We developed techniques for aqueous, ethanolic and solid extraction. We developed a process of refreshing the artificial host plant in this study and another project: "Development of artificial diet and feeding systems for woolly adelgids" (in cooperation with Dr. Fred Hain of North Carolina State University). The proprietary and novel process shows potential in keeping artificial leaves palatable and nutritious. The process has been extended to a variety of other insects. Further, we are currently working on an early pathogen detection project, when pathogens became a problem, with the company ArrayXpress, a fellow biotechnology incubator company at the Centennial Campus at North Carolina State University. We developed a grinding and sieving technology gentle enough to retain the stringy structure of the leaf vascular bundles. The grinding and sieving process removes the vascular bundles from the powder leaving almost no latex, which is carried in vascular structures called laticifers. We have extended all of the above technology in a variety of ways. 1) We have made an oral presentation at the 11th Workshop of the IOBC Global Working Group on Arthropod Mass Rearing and Quality Control AMRQC/IOBC International Meeting in Montreal, Canada in October 2007. A poster was presented at the Entomological Society of America international meetings in San Diego, CA in December 2007. A presentation was made on our findings through an invited talk at NC State University through the Entomology Department in 2007. 2) We have disseminated information through our company's (IDRR)international educational workshops given every year since 2004, a week long workshop with slides, lectures, a handbook given to students, and hands-on learning activities for the students. 3) Our company also does "on-site" consultations and contracts to teach our techniques to others in government organizations, universities and private companies, including Dupont Pioneer, USDA-ARS Weslaco, Texas, where we have a cooperative agreement to develop an artificial diet for a wasp (Tetramesa romana), an invasive (Arundo donax) weed-eating insect. We also have contracts with the US Forest Service and the Connecticut Agricultural Experiment Station to develop artificial diets for Mile-A-Minute weed destroying insect, Susajiscymnus tsuge. We work with our partners at NC State University and New Jersey Department of Agriculture Phillip Alampi Insects Lab helping to develop diets using the knowledge gained through the SBIR funding. ALL of the above projects are outgrowths of the learnings and technologies discussed above. Our ability to help our research partners solve their problems with diet development is directly attributible to the funding of the SBIR project for butterflies. PARTICIPANTS: INDIVIDUALS: Allen Cohen, director of Insect Diet and Rearing Research,LLC (IDRR)and was the principal investigator and project director. Jackie Cohen was research technician and project contact person. Allen Cohen, has been an international leader in his unique interdisciplinary approaches to insect rearing and diet development (as seen in his 2004 ground-breaking CRC Press book publication of Insect Diets: Science and Technology). Cohen's interdisciplinary approach and use of the scientific method coupled with the funding from the USDA SBIR, yielded results and technologies which has led to many partnerships and collaborations in divergent areas: genetics, food science, microbiology, entomology, physiology, microscopy, plant science, plant and animal pathology. PARTNER ORGANIZATIONS: North Carolina State University: (Departments Entomology, Food Science, Microbiology), Beneficial Insectary, Florida DPI, USDA ARS (Weslaco,TX, Tucson,AZ Bee Lab), Virginia Tech University, CT Agricultural Experiment Station, USDA APHIS (Phoenix, AZ & Cape Cod, MA, Raleigh, NC), NJ Dept Agriculture, NCDA&CS(quarantine facility), USDA Forest Service, Array Express, Immunoreagents, NCSU Centennial Campus: Small Business &Tech. Dev. Center, NC State Biotechnology Consortium, CA Almond Board, MGK Pest Control,The Bug Company, Monsanto, DuPont-Pioneer, SC Johnson, Clearwater Butterflies, & most recently Morena (Bulgaria) COLLABORATORS and CONTACTS: Dr.Fred Hain, NC State University, Navdip Kaur, grad student , John Strider, (all Dept Entomology), Alan Bartlett, retired ARS, Chris Daubert, Dept Food Science NCSU, Fred Gould, genetics, NCSU, USDA ARS:John Adamczyk, John Goolsby, Florida DPI: Abby Fox, NCDA&CS: Kathleen Kidd, ArrayExpress:Lyn van Zyl, ImmunoReagents:Ann Black, Brad Heidinger, Beneficial Insectary: Sinthya Penn, USDA APHIS: Gorden Gordh, Ken Bloem, Ernie Miller, Greg Simmons, Cloti Tate, Vic Mastro, NCSU Centennial Campus: Small Business &Tech. Dev. Center: Paul Ulanch, USDA Forest Service: Brad Onkin, Carole Cheah, Dick Reardon, Rusty Rhea, Virginia Tech Univ: Scott Salom, ARS Bee Lab: Gloria DeGrandi-Hoffman, Mona Chambers, Eric Ericson, Diana Sammataro, MGK: Robert Suranti, SC Johnson: Tom Jones, Monsanto:Ty Vaughn, Clearwater Butterflies:Gary Cousins, Dupont Pioneer:Lindsey Flexner, Tim Nowatzki, Morena in Bulgaria: Nikolai Dimitrov. INSECT DIET and REARING WORKSHOPS: Our yearly workshops specialize in hands-on teaching of cutting-edge diet and rearing research advances, to international groups of students. The workshops include Allen Cohen's book, a notebook consisting of updated material covered for that workshop (slides, etc.), and individualized teaching and interaction. The participants come from private companies, government agencies, colleges and universities, as well as non-profit organizations. Every workshop we've held, has had an international flavor, allowing the participants to interact and exchange information and building far-reaching relationships. TARGET AUDIENCES: TARGET AUDIENCES: Our INSECT DIET & REARING TECHNOLOGY WORKSHOPs provide the information gained in the SBIR projects. Workshop participants include a broad range of ethnically and economically diverse populations who represent a wide variety of private companies and government entities. Our own company is a good model, as it is a MINORITY OWNED (female) company. WE HAVE made several presentations at entomological meetings and departmental seminars. Populations in these audiences are diverse in gender, ethnicity, and national background. WE HOST students and professors, as well as representatives from businesses and government labs, in our laboratory and include a number of female and ethnic minorities. We MENTORED a graduate student from India this past year at NC State. We use topics, methodology, and the base of knowledge gained from the SBIR's to teach people. IDRR's WEBSITE (www.insectdiets.com ) targets audiences in every country with access to the internet. The IDRR website posts information learned in our own Rand D as well as information learned from our SBIR's for communication with even 3rd world countries. EFFORTS: Our WORKSHOPS indeed all of our teaching, whether in workshops, individuals or other means, stresses the need to investigate using the inquiry/scientific method. We believe that the field can only advance more quickly by using a strict adherence to the quality of research and reporting. CLASSROOM teaching, both on the university and elementary levels is a part of what we regularly do. We have visited classrooms and been a part of student science day presentations. Numerous ELEMENTARY TEACHER WORKSHOPS have been conducted to help teachers understand and work with the scientific method. We have helped them integrate plant and insect interactions projects into their reading, writing and mathematics programs. DEPARTMENTAL seminars have been given. MENTORING: graduate students at North Carolina State. HANDS-ON research experience, for learning the interdisciplinary approaches and methods advocated by Allen Cohen, is offered in our Centennial Campus Incubator lab location for students, professors, technicians and individuals from other private or governmental entities. POSTER presentation: Entomological Society of America. PUBLISHED papers (3 papers in preparation on information derived from the SBIR). Our WEBSITE information at www.insectdiets.com presents information on SBIR outcomes. Allen Cohen is member of EDUCATIONAL OUTREACH COMMITTEE of the North Carolina Entomological Society for presentation of information to local NC classrooms in elementary, junior high, and high school.

Impacts
The problems encountered with pathogens in the rearing of monarch butterflies,led to an increased awareness and research base of knowledge, throughout the SBIR project,about how pathogens develop. We found we had to develop a diet matrix which discouraged pathogen development, contributed to the larval health and made minerals and nutrients bio-available to the insect.Functional classes of diet ingredients were tested and ranked for their usefulness in the diet; this base of knowledge pointed the way to the discovery of new combinations of antioxidants, nutrients, extracts,and gel complexes to stabilize diets and nurture the monarchs,we now use and show others. The close observations of how the monarch larvae feed led to our research direction and discovery of how the larvae select only particular parts of leaves while leaving out other parts,leading us to develop techniques for processing leaves (grinding/sieving) leaving only the most nutritious plant parts for our diets. From the basic and applied knowledge gained in this SBIR project we were granted a 2nd SBIR for diet development for weed-destroying insects.We use the technologies from the butterfly SBIR routinely with the USDA Forest Service, USDA ARS, the Connecticut Agricultural Research Experiment Station, and our New Jersey Department of Agriculture partners. The plant leaf processing technology has been applied to the 2nd SBIR and projects with invasive weed species Arundo donax, Mile-A-Minute, Purple Loosestrife and others.We work through contracts, cooperative agreements, grants and partnerships through site visits, with "hands-on" teaching and consultations. We developed a rearing system consisting of an artificial self-refreshing plant for insects. We developed gel, or hydrocolloid, combinations which best support newly hatched instars preventing them from drowning. We have developed extracts from the plants the insects feed on to include in the diets. We've developed a technology to process the plant in order to preserve the parts we want to keep and include in the diet, and parts we want to reject within even a single leaf. We have been able to extend and apply all of those findings to many other plant eating insects, most importantly to the invasive weed-eating insects for biological control of invasive weeds. The advances in both basic and applied research allow us to transfer our findings to our partners. If it had not been for the funding from the USDA SBIR this technology transfer of so many advances could not have happened so quickly. Other outreach: IDRR (our company) WORKSHOPS, the BOOK Insect Diets: the Science and Technology by Allen C. Cohen (principal investigator) is given to our international participants, an ORAL PRESENTATION at the 11th Workshop of the IOBC Global Working Group on Arthropod Mass Rearing and Quality Control AMRQC/IOBC International Meeting in Montreal, Canada in October 2007, a POSTER was presented at the Entomological Society of America international meetings in San Diego, CA in December 2007. A presentation was made on our research findings through an INVITED TALK at NC State University through the Entomology Department in 2007.

Publications

  • No publications reported this period