News and Events


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Mushroom Trip

Mushroom Trip 15 December 2020

Mushroom Trip

Extension’s hands-on school program stokes excitement and interest

What is a mushroom? Is it a fruit, or is it vegetable? Is it even a plant? During this pandemic, it’s more important than ever to create hands-on “classroom” activities that students can do from home. Look no further than Extension educators, who’ve been able to deliver on CTAHR’s Land Grant obligations by helping Oʻahu students cultivate oyster mushrooms.

Invasive Pests, Part III

Invasive Pests, Part III 23 November 2020

Invasive Pests, Part III

Extension hosts another mini-conference December 15

With the main objective to bring stakeholders together, in the same forum, to discuss and share current issues, concerns, and updates on the status and research in Hawaiʻi, CTAHR Extension will host the third Invasive Pests Mini-Conference via Zoom: December 15, 1:00 p.m.

Giant Smiles, Part II

Giant Smiles, Part II 16 November 2020

Giant Smiles, Part II

4-H contest gets keiki excited about agriculture

“The opportunity to grow ‘giants’ with my children is a blessing,” says Wendi Sasaki. “We were able to spend quality time together, learning and growing.’”

The parent participant is referring to a contest of giant fruits and vegetables, brought to Big Island families by the Hawai'i County 4-H program.

I Owe Uncle Sam What?!

I Owe Uncle Sam What?! 9 November 2020

I Owe Uncle Sam What?!

Learn to navigate Ag taxes with GoFarm Hawaiʻi’s free seminars

If doing taxes is a piece of cake for you, then stop reading now. But for the rest of us who cringe at the thought of preparing our own Agribusiness General Excise taxes, Schedule F and other forms of sole proprietorship or partnership, help is on the way.

Mahalo, Volunteers!

Mahalo, Volunteers! 2 November 2020

Mahalo, Volunteers!

Urban Garden Center hosts the 2020 Volunteer Appreciation Day

Forty-eight cars and trucks took their turns, driving thru the grounds of the Urban Garden Center for a well-deserved chance to vote on their favorite Halloween decoration, and receive tools generously donated by City Mill, as well as other tokens of mahalo! from the Hawai‘i Department of Agriculture, UH Agricultural Diagnostic Service Center, UH Bookstore, and CTAHR.

Coffee Leaf Rust

Coffee Leaf Rust 2 November 2020

Coffee Leaf Rust

Pest confirmed on Maui and tentatively on Hawai`i Island

Coffee leaf rust (CLR) has been confirmed by the U.S Dept. of Agriculture from coffee plant samples collected on Maui last week. In response, the Hawai`i Dept. of Agriculture (HDOA) began statewide surveys and has detected suspect plants on Hawai`i Island.

ʻŌhiʻa Love Fest

ʻŌhiʻa Love Fest 2 November 2020

ʻŌhiʻa Love Fest

Celebrating one of Hawaiʻi’s most beloved plants

“The most abundant tree in Hawaii’s native forest is the ‘ōhi‘a lehua, a tree critical to providing the water we drink, keeping our ocean reefs clean, and to the native Hawaiian culture,” says Ambyr U. Mokiao-Lee, Rapid ʻŌhiʻa Death (ROD) Statewide Outreach Coordinator. “For these reasons and more, ‘ōhi‘a will be celebrated in a week-long virtual event called ʻŌhiʻa Love Fest.

Extension Growth

Extension Growth 2 November 2020

Extension Growth

The Hawaiʻi chapter of Epsilon Sigma Phi is recruiting members

Ever wonder what Extension is up to – across the pond? Want a mechanism to share experiences, ideas, what works and what didn’t, with fellow professionals on the Mainland? Then consider joining Alpha Omega, the Hawaiʻi chapter of Epsilon Sigma Phi.

MacNut Pest Management

MacNut Pest Management 13 October 2020

MacNut Pest Management

A new study on the felted coccid can help growers manage loss from pests

Some years ago, an Australian native insect called the “macadamia felted coccid” found its way to Hawaiʻi, causing leaf and branch die back, flower drop and sometimes, tree death among Macadamia trees. Relatively recently, the invasive pest insect became widespread on the Big Island – and of course, this has led to reduced crop yields.

Hawaiiscape Green

Hawaiiscape Green 6 October 2020

Hawaiiscape Green

Extension teams up with LICH to help small and minority-owned businesses

Please join Extension agents Russell Galanti and Hannah Lutgen on Tuesday, Oct. 13, 3:00 p.m., as they present the first in a planned series of webinars on the local green industry. The first webinar will look at small and minority-owned businesses in the green industry and programs that will improve their economic situation and help them recover from COVID-related economic effects.

Piggeries in Puna

Piggeries in Puna 29 September 2020

Piggeries in Puna

A new deep-litter design may help jump-start family farms

Lower Puna has felt the stinging triple punch of hurricane, lava, and now, pandemic. Enter Mike DuPonte and a new deep-litter piggery.

Beyond Beginners

Beyond Beginners 15 September 2020

Beyond Beginners

GoFarm Hawaiʻi consults on business plans, grant writing, and a whole lot more.

Financial analysis, marketing support, business plan production, grant writing – perhaps not what you’d expect from a beginner farmer training program.

But as Janel Yamamoto explains in a recent article, GoFarm Hawaiʻi offers services for those already working in the agricultural industry.

One Busy Man

One Busy Man 9 September 2020

One Busy Man

Extension agent is helping livestock producers, near and far

What’s one way to help ranchers stay in business during a pandemic? Kyle Caires might give you three answers. Last week, the Extension agent was a guest of Maui Mayor Michael Victorino, as the mayor announced Feed My Sheep, a new CARES Act-funded partnership with local ranchers to provide ground beef to people in need.

RU AgCurious?

RU AgCurious? 19 August 2020

RU AgCurious?

GoFarm Hawaiʻi Windward kicks off another farmer training

If commercial farming is a key to economic diversification in our island state, why not start with Hawaiʻi’s premier beginning farmer training? The free webinar is the first step for anyone interested in GoFarm’s highly successful program.

Giant Smiles

Giant Smiles 19 August 2020

Giant Smiles

4-H contest gets keiki excited about agriculture

For eight years and running, Hawaiʻi County 4-H has found a special way to bring out big smiles from its smallest members: a contest of giant fruits and vegetables.

Congrats, Zhiqiang Cheng!

Congrats, Zhiqiang Cheng! 27 July 2020

Congrats, Zhiqiang Cheng!

Turfgrass and landscape pest expert wins arboricultural award

Golf courses, resorts, and homeowner lawns across the Islands rely on Hawai‘i sunshine, good irrigation, and the expert guidance of Zhiqiang Cheng of the Dept. of Plant & Environmental Protection Sciences.

Vegetable Garden Isle

Vegetable Garden Isle 22 July 2020

Vegetable Garden Isle

Extension agents feed the hungry with the fruits of their research

The Kaua‘i community has a long history of helping one another, and CTAHR’s Kaua‘i Cooperative Extension is no exception—agents recently donated 556 pounds of vegetable greens to the Hawai‘i Foodbank there. The vegetables were grown at the Kaua‘i Agricultural Research & Extension Center by assistant Extension agents James Keach and Emilie Kirk, with the help of agricultural technicians Andrew Ehlert and Michael Carle.

Soil Rx

Soil Rx 22 July 2020

Soil Rx

Extension offers conference on soil health

The United Nations has declared 2020 the International Year of Plant Health, and healthy plants need healthy soil! Find out how to foster and maintain it at the Cooperative Extension Virtual Soil Health and Sustainable IPM mini-conference on Tuesday, August 4, from 4:30 to 6:30 p.m.

Mama Cows

Mama Cows 22 July 2020

Mama Cows

Agent offers webinar on choosing heifers for cow/calf producers

Livestock Extension agent for Kaua‘i County Savannah Katulski is offering a webinar, “Selecting Beef Replacement Heifers,” on Thursday, July 30, at 6:30 p.m. This webinar will focus on best management practices for choosing and managing replacement heifers for a cow/calf operation. 

Mahalo, Hawaiian Earth Products

Mahalo, Hawaiian Earth Products 17 July 2020

Mahalo, Hawaiian Earth Products

Compost donation will support SOAP’s turmeric project

Longtime CTAHR supporter Hawaiian Earth Products (HEP) recently donated eight truckloads of compost to the Poamoho Research Station! The compost will be used to support research into the yield and quality of Hawai‘i-grown organic turmeric. 

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1 May 2020

Fast Green Food

Grow a salad bowl in your back yard

Fast Green Food

You may be eating less salad these days. Everyone’s making fewer trips to the supermarket, and lettuce and other tender greens are easily perishable. But growing your own lettuce is a great solution—now and going forward. Lettuce is fast growing and ideal for backyard gardens. You can pick individual leaves each day or harvest whole heads at once. By starting a new set of seeds or transplants every few weeks, you can create succession plantings to ensure a continuous salad bar!

Temperature and Varieties

Lettuce does best in cool climates or during cool seasons. At higher temperatures, lettuce can bolt (flower), become bitter, and form loose heads.

No problem! Just make sure you select the right lettuce. Varieties with tolerance to high temperatures can be grown in warmer areas year-round.

The variety commonly called ‘Mānoa’ lettuce, identified by CTAHR researchers as ideal for Hawai‘i conditions, has always been a local favorite. It has a buttery flavor and crisp texture—my family loves to eat it with a little mayonnaise and shoyu as dressing.

However, in recent years, ‘Mānoa’ lettuce has become extremely sensitive to heat. It may prematurely bolt and develop “tip burn” on the leaf edges. So CTAHR has identified ‘Ānuenue’ as a more heat-tolerant variety. Similar to ‘Mānoa’, it’s another local favorite that can be grown at low elevations. Both can be grown year round in Hawai‘i, and the seeds are available from the UH Seed Laboratory (which offers mail ordering).

There are plenty of other lettuce varieties you can try—just look for types that say they’re heat tolerant. Plant several for a rainbow of colors and tastes!

Nip Problems in the Bud

Besides heat, tip burn can be caused by not enough water, too much fertilizer, or not enough calcium in the soil—but these conditions are easy to fix. First, try watering your lettuce more, then ease up on the fertilizer. As a last resort, add a soil supplement containing calcium.

Thrips, birds, and spotted-wilt virus can also affect your backyard lettuce crop. Consult the UH Cooperative Extension service for the latest pest-control techniques.

Be sure to wash lettuce and other produce thoroughly before serving, to remove any tiny snails or slugs that might be on it.

Feed Your Heads

Lettuce grows best in soils rich in organic matter with a neutral pH. Add organic compost, properly composted chicken manure, and a sprinkle of triple superphosphate fertilizer (0-45-0) to the planting hole for a healthy start. If you can’t find superphosphate, a general-use fertilizer such as 16-16-16 is fine.

After planting, apply a dry general-use fertilizer every three to four weeks or fertilize every two weeks with a water-soluble fertilizer. Because lettuce is eaten raw, use clean, potable water for overhead irrigation and when fertilizing.

Happy salading!

Jari Sugano, O‘ahu County Administrator, College of Tropical Agriculture and Human Resources