Jari S.K. Sugano 

Extension Agent

University of Hawaii at Manoa
College of Tropical Agriculture and Human Resources  


Jari S.K. Sugano serves as the Oahu County Administrator for Oahu County effective May 2020. This website host her previous work as an Extension Agent with commercial edible cropping systems with the University of Hawaii at Manoa, College of Tropical Agriculture and Human Resources (UH CTAHR), Department of Plant and Environmental Protection Sciences (PEPS). 

She previously served as the statewide coordinator of the Local & Immigrant Farmer Education Program (LIFE) and co-coordinator for the Western SARE Professional Development Program and co-program leader for the Sustainable and Organic Agriculture Program (SOAP). 

She currently serves as the Emeritus Editor for the Sustainable and Organic Agriculture Program's  Hanāi ‘Ai Newsletter.

Prior to coming to UH CTAHR, she worked for Del Monte Hawaii and the USDA Forest Service.

Photo Gallery

Select Extension Publications

Video: https://www.youtube.com/watch?v=y_Lrx2QmABc

DOA Final Report 

Frontiers in Microbiology 


Informal Reports 

(Observational trials to address priority grower issues) 

Xanthosoma Field Trial Summary (2017-2020)

Second Broccoli Observations, May 28, 2020

Potting Mix, Fertilizer and Irrigation (CTAHR Notes, 4.13.20-COVID)

Container Gardening in Small Spaces (CTAHR Notes, 4.9.20-COVID)

Edible Cropping System: Identification of Common Pest and Diseases, March 2020 (Low resolution)   

Saving UH CTAHR Eggplant Seeds, March 2020

Tolentino Eggplant, Field Day Handout, March 2020

Poamoho Dark Long (210), Eggplant, Field Day Handout, March 2020

Hamasaki Eggplant, Field Day Handout, March 2020 

Conservative Mamaki Yield Estimates for GoFarm Hawaii, February 2020

Ecologically Based Pest Management via In Field Inoculation of Male Macaranga Flowers on Insectary Crops in Eggplant Production Fields, December 2019 

Summer Broccoli Observations, October 2019

Summer Spinach Evaluation, August 2, 2019

Wax Apple Evaluations in Waimanalo, August 1, 2019

Sweet Alyssum ( Lobularia maritima) Varieties, August 2019

Chicken Trap Construction, July 25, 2019

Evaluation of Cacao Cages in Waimanalo, July 24, 2019

Cacao Cage Construction-Video 

Evaluation of 4 Varieties of Tea on Oahu, May 2019

Field Screening of Various Lettuce Cultivars for Tip Burn Tolerance, May  2019

Evaluation of Non-Chemical Deterrents to Repel Slugs. April 2019.

The Importance of Testing pH and EC in Agriculture. March 2019. 

The Effect of Supplemental Light on Mango Growth. (Notes) March 2019

Evaluation of Two Grape Varieties in Waimanalo, March 2019.  

Poamoho Green Onion for Hawaii Gardens, March 2019. 

Design of a Small-Scale Off-Grid Hydroponic System for Screenhouse Leafy Vegetable Production. February 7, 2019.   

Electric Fence: Non-Chemical Wild Pig Deterrent, January 25, 2019. 

Ongoing Field Evaluations of Tomato Yellow Leaf Curl Virus Resistant Varieties for Screenhouse Consideration. January 14, 2019. 

Evaluation of Organic Insecticides on Aphid Control on Chinese Cabbage. November 5, 2018. 

Advancing Hawaii's Farming Communities Through Applied Research, Education and Collaborative Partnerships. October 30, 2018  

Evaluation of Manoa X Leopard Lettuce Varieties on Oahu, October 2018

Scaling up Māmaki ( Pipturus albidus) in Non-Forest Areas for Commercial Production. September 2018. 

Managing Thrips Using Macaranga Male Flowers, Preliminary IPM Report. July 2018.

Insecticide Field Trial Using Resistant Varieties in Screen Systems, June 2018.

Protected Culture Field Day Handout, May 30, 2018. 

Two New Long Eggplant Varieties

Poamoho Dark Long (210) (OP) (ADA) 

Poamoho Dark Long (210) (PDF)

Hamasaki (OP) (ADA) 

Hamasaki (OP) (PDF)

Wounded Warrior Project Evaluating Organic (non -fish) Hydroponic Solutions, 2017. (ADA)

2018 Screenhouse Systems Report for CTAHR Supplemental Funding 

2017 Addressing Loss in Productivity of Eggplant Hybrids (updated report) 

2017 Soybean Field Trial, Waimanalo. November 2017

Update on Screen Project to Hawaii State Legislatures, October 9, 2017

Evaluation of Head Cabbage Under Screen Culture in Kula, Maui, September 2017

Evaluation of Pak Choy Grown Under  Two Types of Screen Mesh, September 2017

2017 Daikon Webworm Trial

     DIY Screenhouse Part II (2017)

     DIY Screenhouse, Part I (2016)

     DIY Screenhouse (2014)

Fine Mesh Netting Screenhouse for  Exclusion of Insect Pests (2007)

Installation of Field Toilets and Hand Washing Stations to Increase Worker Hygiene & Sanitation, September 7, 2017 

2017 Water Remediation Study using Method 1603

2017 Plant Propagation Outdoor Expo, Final Report. July 7-8, 2017

Minimizing Food Borne Illness Field Day, Rat Lung Worm Prevention, April 29, 2017  

2017 Mamaki Project for School Kids

2016 Mamaki Trouble Shooting

2016 Kale Field Data 

2015 Banana Surfactant Screening

2015 Whitmore Blueberry Screenings

2015 Daikon Virus Screening

2014 Fusarium Evaluation on Radish in Field and in Pot Trials

2014 Replicated Head and Chinese Cabbage Trial in Maui and Oahu

2014 Eggplant Cuttings

Statewide Eggplant Variety Trial

Parental Eggplant Hybridization Issues (Wai x N)

2014 Romaine Lettuce Screenings

2014 Water Sanitization Aquaponics Trial

2014 Persian Cucumber Field Trial

2013 HDOA Ti Leaf Project

2013 Hydroponic Red and Green Lettuce Field Day Handout  

Tip Burn Evaluation (2013)

2012 LIFE Year End Report

2011 LIFE Year End Report  

2011 Best Management Practices for Black Spot on Papaya (flyer)

2011 Best Management Practices for Black Spot on Papaya (English)

2011 Best Management Practices for Black Spot on Papaya (Ilokano)

2010 Alternative Growing System for Romaine Lettuce

2007 Sweet Corn Variety Trials

2006 Sweet Corn Field Evaluation

2006 Pickleworm Insecticide Field Trials

2005 Pickleworm Insecticide Trials

USDA Export Regulations   


Select Presentations

Vegetable Gardening for Master Gardeners, Part 1 

Vegetable Gardening for Master Gardeners, Part 2

Vegetable Gardening for Master Gardeners, Part 3

CTAHR Eggplant Varieties and Seed Saving Opportunities, SOAP Field Day, March 2020

COVID- 19 Online Sharing of Sustainable Agriculture Talks (intended to supplement talks/demo)

Cooperative Extension in Hawaii, March 2020

Sustainable Agriculture Overview, March 2020

Agribusiness Overview, March 2020

Composting Overview, March 2020

Crop Production Overview, March 2020

Plant Propagation Overview, March 2020

Ecologically Based Pest Management, March 2020

Water Management Overview, March 2020 '

Waste Management Overview, March 2020 

Science Based Approach to Vegetable Gardening in Hawaii. Presentation for the Oahu Master Gardeners. March 8, 2019. 

Non-Chemical Slug Deterrents for the Garden (You Tube Video)  

Electric Shock-Slugs (You Tube)

Static Hydroponic Systems for School Based Programs (You Tube)  

Dr. Kratky's New Video on Static Hydroponics + Arugula (You Tube)

Pest Management for HI-NexGen Small Farmers. GoFarm Hawaii. October 24, 2018. Waimanalo Research Station. 

Kalo and Awa Day at Waimea Valley (9.8.18)  

Ground Support Workshop at Leeward Community College (8.1.18)

Status of Hawaii Agriculture and the Sustainable and Organic Agriculture Program. (8.1.18)

Specialty Crop Report: Mamaki (8.1.18)

On Farm Rat Lung Worm Management (8.1.18) 

Non Chemical Slug Deterrents (You Tube Video) 

Slug and Snail Management. WSARE Maui Hot Shot IPM Workshop. May 23, 2018.

Mamaki Research and Findings. Inaugural Mamaki Conference. Pu'u Wa'awa'a Ranch. April 6, 2018

Introduction to IPM in Edible Cropping Systems and the Benefits if Using Natural Resistance in Select Varieties to Manage Agricultural Pest. Kauai Research Station. March 17, 2018

2018 Science Based Approach to Vegetable Gardening for Hawaii's Master Gardeners

Kauai, March 8,2018

Oahu, March 23.2018

Extension Evaluation and Reporting, UH CTAHR Hoku Mentoring Program, November 3, 2017

Dr Luisa Castro's analysis of FSMA's Affect on Local Producers. Sustainable and Organic Agriculture Program. Hanāi ‘Ai Newsletter. June-August 2017. University of Hawaii at Mānoa, College of Tropical Agriculture and Human Resources.

Agricultural Marketing for Hawaii's Women Farmers. October 10, 2017

FSMA's Affect on Pacific Gateway's Small Acreage Farmers

Pest Management for Beginning Farmers (Go Farm 2017)

Sprayer Calibration (Go Farm-Waimea)

Using Field Trials to Solve Industry Issues in Edible Cropping Systems (Go Farm-Waimea)

Waimanalo Taro Collection 2017

Pest Management for UH CTAHR Master Gardeners, March 2017

Evolution of Pest Exclusion Systems, 2017

Food Safety Modernization Act  (FSMA) Interpretation, March 3, 2017

Basil Variety Screening Presentation, Organic Field Day

BDM Resistance Management Program  

Variety Trials to Combat Edible Crop Pests

Advancing Oahu's Edible Crop Industries Conference, 2016

Life as an Extension Agent

Calibration of a Spray Gun

Sprayer Calibration for the Landscape Industry

Waimanalo Taro Collection

Whitmore Project Support

2014 Evaluation of Commercial Microbes Products (APEC)

Quick Hydroponic Watercress Assessment (2014) 

Pest Management and IPM for Go Farm Hawaii (2016)

Pest Management and IPM for Go Farm Hawaii (2015)

Top 10 Pest for Go Farm Hawaii (2014)

2014 Banana Pest Management, Banana Mini Conference

Vanilla Pollination Process

Vegetable Production for Go Farm Hawaii (2013)

Soil Nutrition for Go Farm Hawaii (2013)

Black Spot Management in Papaya

Social Media and Marketing

Aquaponics Integrated Pest Management, 2013

Aquaponics Integrated Pest Management, 2012

Oahu Peach Update (2013)

Top Basil Issues for 2013

Tomato Yellow Leaf Curl Virus (TYLCV) Variety Screening

Iris Yellow Spot Virus Program - Waianae

Basil Issues for Chinese Producers-Waianae

2011 Basic Pesticide Training for Chinese Producers

Container Gardening

Fruit Tree Grafting (2009)

Irrigation on Poi Trial (2009)

2009 Field Grafting Papaya

Banana Insect Talk (2005)


Okumura, L. A, Taniguchi, and J. Sugano. Use of Non-Circulating Containers To Increase TRansplant Success in Mamaki. American Society for Horticultural Science Annual Conference. July 22-25, 2019. Las Vegas, Nevada. 

Sugano, J., K.H. Wang, K. Tavares, J. Uyeda, J. Silva, T. Radovich, and G.Spinelli. 2019 Pacific Branch Meeting of the Entomological Society of America, March 31, 2019- April 03, 2019. San Diego, CA.

Wang, K.H., M. Manley, D. Meyer, J. Sugano and J. Uyeda. Hot Water Treatment for Arthropod Pests Management. 

Soybean Field Day Poster/ Layout

Capitol & Whitmore 2016

Integrated Pest Management Overview

Integrated Pest Management Pest Identification: Common Diseases

Pest Identification: Common Pests

Integrated Pest Management Control Strategies

Integrated Pest Management Prevention Strategies

IPM Chemical Control Strategies -Chemical Control Strategies 

IPM Beneficial Insects and Insectary Plants

Ladybeetles of Hawaii

Hydroponics for School Program

LIFE Program Posters (2014)

No Till Illustration 

Plant Propagation Educational Posters. CTAHR Cooperative Extension Service March 2014 

Basic Crop Nutrition Educational Posters. CTAHR Cooperative Extension Service March 2014

Soil Testing Educational Posters. CTAHR Cooperative Extension Service March 2014 

Tissue Testing Educational Posters. CTAHR Cooperative Extension Service March 2014

 Fertilization Educational Posters. CTAHR Cooperative Extension Service March 2014

Organic Fertilization Educational Posters. CTAHR Cooperative Extension Service March 2014 

Liming Oahu Soils Educational Posters. CTAHR Cooperative Extension Service March 2014

Calculating NPK Educational Posters. CTAHR Cooperative Extension Service March 2014

Full set (2.2 MB)

Select Videos / Media

Screenhouse Success Story, CTAHR Notes, June 26, 2020

Screenhouse Boost Marketable Yields for Growers, Ag Web, June 17, 2020

Overhe(a)rd: Screenhouses and the State of State Fairs. June 25, 2020 (Dr. Wang)

CTAHR Videos on the Sam Choy Show are featured at (9 minutes and 43 seconds) into the show

Locally Grown Carrots. Sam Choy’s in the Kitchen. November 10, 2019. Available online:  https://www.khon2.com/sam-choys-in-the-kitchen/sam-choys-in-the-kitchen-beaumont-ohana/

Hawaii Grown Tea. Sam Choy’s in the Kitchen. November 4, 2019. Available online:  https://www.khon2.com/sam-choys-in-the-kitchen/sam-choys-in-the-kitchen-toner-ohana/ 

Hawaiian Kalo. Sam Choy’s in the Kitchen. October 24, 2019. Available online:  https://www.khon2.com/sam-choys-in-the-kitchen/sam-choys-in-the-kitchen-koloa-landing/ 

Locally Grown Organic Cucumber with SOAP. Sam Choy’s in the Kitchen.  August 27, 2019. Available online: https://www.khon2.com/sam-choys-in-the-kitchen/sam-choys-in-the-kitchen-smith-ohana/

Locally Grown Beans.Sam Choy’s in the Kitchen.  August, 19, 2019. Available online: https://www.khon2.com/sam-choys-in-the-kitchen/sam-choys-in-the-kitchen-spectrum/ 

Locally Grown Chocolate. Sam Choy’s in the Kitchen.August 19,2019. Available online: https://www.khon2.com/sam-choys-in-the-kitchen/sam-choys-in-the-kitchen-okamoto/ 

Locally Grown Celery. Sam Choy’s in the Kitchen.  August 8, 2019. Available online: https://www.khon2.com/sam-choys-in-the-kitchen/sam-choys-in-the-kitchen-made-in-hawaii/  

Locally Grown Tomatoes with GoFarm Hawaii. Sam Choy’s in the Kitchen.  August 4. 2019. Available online: https://www.khon2.com/sam-choys-in-the-kitchen/sam-choys-in-the-kitchen-broadfoot-ohana/

Kubota, L. UH experts scramble to figure out what’s killing a popular tropical plant. Hawaii News Now. April 9, 2019. Available online: https://www.hawaiinewsnow.com/2019/04/10/uh-experts-scramble-figure-out-whats-killing-popular-tropical-plant/ 

Ching, S. UH to hold rat lungworm awareness day for small farmers. Hawaii News Now. April 28,2017. Available online: https://www.hawaiinewsnow.com/story/35281659/uh-ctahr-to-hold-rat-lungworm-field-day-for-oahu-farmers/ 

Hawaii News Now. Pumpkin farmers say too much rain is just as bad as drought. Hawaii News Now. September 24, 2015. Available online: https://www.hawaiinewsnow.com/story/30112290/for-pumpkin-farmers-too-much-rain-just-as-bad-as-drought/

Select You Tube Videos (shot on an iPhone)

Seed Saving-Tolentino Eggplant, SOAP Field Day. March 2020

Managing Powdery Mildew on Mango, March 2020.

Propane Torching. For MG Training, March 2020. 

Easy to Root Vegetative Cuttings. January 28, 2020.

Aeroponic Cloning Machine. January 24, 2020.

DIY Portable Screen House System. January 24, 2020.   

Hybridizing UH CTAHR Eggplant. January 15, 2020. 

Composting: Carbon Sources. January 14, 2020.

Taro Variety Trial #1005-84: Taking Huli. January 9, 2020.

Waimanalo Research Station Professional Development Day. November 11, 2019. 

ASD Technology in Banana for Fusarium Management (edited by C. Kadooka & Dr. Wang). May 14, 2019.  

Static Hydroponic Video for Middle School Classroom Activity. March 1, 2019.

Waimea Valley Taro Field Day, October 25, 2018. 

Cacao Cage Construction (with Eli Isles, Colin Hart & Dr. Bittenbender). December 18, 2018.

Low Voltage Electric Fence for Slug Prevention. July 20, 2018.  

2018 Hawaii State Farm Fair. July 17, 2018.

2018 SOAP/WSARE Ag Professional Development Conference, February 20, 2018.

Poamoho Chicken Trap, May 2019

Organic Tomatoes Under Screen with GoFarm Hawaii. May 19, 2019.

ATV Mounted Spray Boom: Spray Calibration. September 26, 2019. 

Water Testing for FSMA. Method 1603 with Dr. Li. September 14, 2017.

Papaya Cutting Hands-on Workshop at HARC. February 2, 2017. 

2016 SOAP/WSARE Agricultural Professional Organic Field Day. November 10, 2016.

Western Region NACAA Conference-Kona. October 13, 2016.  

DBM Insecticide Resistance Management Bioassay. July 25. 2016

Spray Gun Calibration Using the 1/128th Spray Method. May 22, 2016.

Ag Awareness Day at Waimanalo Research Station. May 14, 2016.

Fruit Tree Screening Trip to California. March 19, 2016. 

UH CTAHR Seed Program. March 10, 2016.

IHS Hawaii Roof Top Urban Farming. July 18, 2015

Mist Blower Spray Calibration for Farmer Resource Workshop. April 17, 2014.  

Taro Field Day Brings Together Diverse Points of View. University of Hawaii News. July 2013. 

Diamond Back Moth Insecticide Resistance Management Program at CTAHR. October 28, 2011 (poor quality issues).