CEO | Agriculture & Natural Resources
Cooperative Extension & Outreach | Agriculture & Natural Resources
CEO | Agriculture & Natural Resources
Professionals working in Agriculture & Natural Resources division take a close look
at the needs of local farmers, consumers and the plants and animals living on Guam.
Agriculture professionals conduct variety trials to find the fruit and vegetable plants
most suitable to the soils and climate of Guam. They meet with farmers to help them
solve the issues of growing crops in a tropical climate.
Extension entomologists assist farmers in how to control crop pests as well as protecting
native plants and animals from accidentally introduced invasive species such as the
coconut rhinoceros beetle.
Extension plant pathologists look at the disease organisms affecting crops and other
island plants including ironwood trees.
Horticulture professionals assist backyard farmers and community gardeners in starting
and maintaining vegetable gardens and food forests.
In 2018, Cooperative Extension & Outreach established the annual agriculture survey
of production outcomes, revenues, capital investments and needs for Guam farmers.
This information is the foundation for development of Extension education efforts
for all producers.
Invasive Species
Coconut Rhinoceros Beetle
The coconut rhinoceros beetle (CRB), Oryctes rhinoceros, has been attacking coconut trees on Guam since it was first discovered on the island in 2007 and has proven to be voracious and tenacious. The coconut rhinoceros beetle, is a major pest of coconut palm, oil palm and other palm species. Palms are damaged when adult beetles bore into the crowns of palms to feed on sap. Tree mortality occurs when beetles destroy the growing tip (meristem). Immature beetles (grubs) do no damage. They feed on dead, decaying vegetation in breeding sites. Preferred breeding sites are dead, standing coconut stems, and piles of decaying vegetation such those left behind by typhoons or after replanting of oil palm plantations.
The links below provide more information regarding the CRB on Guam.
| Resource | Author | Link | Publication Date |
|---|---|---|---|
| Behavior & Biology of the Coconut Rhinoceros Beetle | Ian Iriarte, Roland Quitugua, Olympia Terral, Aubrey Moore, Mariana Sanders | Download Brochure | April 2017 |
|
The Coconut Rhinoceros Beetle Problem on Guam: Past, Present and Future |
Dr. Aubrey Moore | View Paper | |
| A New Coconut Rhinoceros Beetle Biotype Threatens Coconut and Oil Palms in Southeast Asia and the Pacific | Dr. Aubrey Moore | View Paper | July 2016 |
| Life Cycle of the Coconut Rhinoceros Beetle | Download Poster | ||
| Library of CRB scientific literature | View Library | ||
| Joint Region Marianas | View Video | April 2014 | |
| Dr. Aubrey Moore | View Presentation | November 2015/March 2016 |
Invasive Plants
Invasive Butterflies
Home and Garden
Crop Production Guides
- Guam-Grown Vegetables Seasonality Chart
- Guam-Grown Fruits Seasonality Chart
- CHamoru & Scientific Names of Vegetables & Fruits
- Tagalog & Scientific Names of Vegetables & Fruits
- Eggplant, Pepper, Tomato Production Guide
- Guam Crop Charts
- Chinese Kale Fact Sheet
- Bell Pepper Fact Sheet
- 2017 Agriculture Review
- DIY Non-toxic Insect Spray for Garden Pests
- Fruit & Vegetable Seedling Listing 2020
Enabled Gardening Series
Turfgrass Series
Plants
Native Plants
Native plants are important to the ecosystems of Guam for many reasons. They provide food and habitat for wildlife; medicine, food, and cultural resources for people; reduce contamination of reefs, rivers, and aquifers; influence the soil in ways non-native plants cannot; and some plants are not found anywhere else in the world. The links below take you to a PDF with information about the individual plants.
Plant Disease Diagnostics 2016
In May 2016, Extension and Outreach faculty member Dr. Robert Schlub in collaboration with the director of the Louisiana State Extension Plant Diagnostic Center, Dr. Raghuwinder Singh conducted a four-day diagnostic training workshop in an effort to strengthen the diagnostic capabilities of Agriculture Professionals in the region. Over the course of the training, agricultural professionals from Guam and the Northern Mariana Islands received classroom instruction, which was reinforced with plant disease specimen collection field trips and laboratory exercises. The training emphasized diagnoses based on field symptoms and those revealed through the use of a hand-lens.
2016 Presentations - Louisiana State Extension Plant Diagnostic Center: Raghuwinder Singh, PhD
UOG-WPTRC: Andrea Blas, PhD
UOG-CE&O: Robert L. Schlub, PhD
Factsheets
Collecting Disease and Insect Pest Samples
Coconut Rhinoceros Beetle (CRB)
Sample Photography - Diagnostics
Tobacco Screen Bacteria - Diagnostics
Publications
Plant Disease Diagnostics 2021
Presentations
Introduction to Foliar Fungal Workshop
Introduction to Foliar Pathogens
Life Cycle of Cercospora and Corynespora
Collecting, Processing and Storing Field Samples
Why Correct ID is Essential for Control
How to Collect and Send Samples Off-Island for ID
Prevalent Fungal Leaf Pathogens and Their Diseases
Molecular Tools in Fungal Detection
Index of Plant Diseases in Guam
Insect Identification
Drop-off location: Agriculture & Life Sciences Building, Room 105
Drop-off hours: Monday-Friday 8:30 a.m.-3:30 p.m.
Sample turnaround time: 48 hours
Cost: Free
Contact: Jesse Bamba | (671) 735-2091/80 | jbamba@triton.uog.edu
Soil Diagnostics
Acosta Mark
Office Hours: 
Office Location: Expertise
Bamba P. Jesse
Office Hours: Office Location: Expertise
Barber Jr. "Bob" L. Robert
Office Hours: Office Location: Expertise
Bevacqua F. "Bob" Robert
Office Hours: Office Location: Expertise
Chen Kuan-Ju
Office Hours: Office Location: Expertise
Liu "Leo" Jeng-Hung
Office Hours: Office Location: Expertise
Quitugua Roland
Office Hours: Office Location: Expertise
Tuquero E. Joseph
Office Hours: Office Location: Expertise
Wall Phoebe
Office Hours: Office Location: Expertise