Intro to Sickle: Agroforestry Management Low Bearing Coconuts

Thanks to a friend (you know who you are) who recently came over for a tour for the suggestion that we demonstrate how we use tools in our management. A tool tutorial!

The sickle is an invaluable tool. Utilizing different tools allows us to have streamlined management of our agroforestry systems. Here is a description of how we work with a sickle. When I first started using these tools it changed my life and now itʻs one of the most important go to tools that I have. Itʻs ideal to have the right tool for the job and know that tools limits and when to pull out a different tool like a handsaw for bigger cuts.

If anyone knows of a better brand to work with, please let us know. High quality tools are extremely important.

Keep your systems managed with proper tools!

Year 5 Agroforestry Management: Monkeying around for mulch

Agroforestry management changes as years progress. We are stepping into year 5 in this zone. At this point our trees give us most of our mulch. We have never brought in mulch and never plan to. In the early years many other plants were utilized for mulch until they are phased out as the system works it way through natural succession. Heavy pruning drives our system forward as it begins to become stagnant and crowded with overgrowth. Pruning the system hard pulses it into grow mode again. At this moment we have an opportunity to plant a few more species into the system as its nice and open and there’s a lot of sunlight.

Notice how teamwork makes our dream work. Julie cuts the trees apart and Spencer grabs the material as it comes down to limit destruction to our shorter plantings. As Julie finishes the climbing tree work most of the material is already cut, organized and managed as mulch into our system.

Agroforestry management is all about cycles and diligence. PRUNE YOUR SYSTEM!

Syntropic Agroforestry Management: Low Bearing Coconut Row

Syntropic Agroforestry management can be straightforward when you design the system effectively. Here we have a nice wide area along our fence line so we can have access and an area to work material. Notice how effectively the material comes down and dissipates as mulch into our cropping row. We do own the property next door, so we are not cutting our neighbors Cecropia, but our own trees. The coconuts and sugarcane will have much more sunlight now, the area is pruned and ready for a growth pulse. Next to finish up cutting trees on the hillside and mulch the other side of the row.

Synchronize your system!

Vine chaos into mulch: Syntropic Agroforestry Management

Hey everyone, I wanted to share a video about reclaiming a zone after it was neglected in management cycles for a little too long and the vines turned into chaos. Delayed management of our agroforestry rows allowed our system to eat itself. With a solid framework and repetitive patterns we can take the chaos and turn it into mulch for our system. These types of systems are resilient even when you delay timing of management cycles and it gets away from you. As long as you take the time and reset it!

We are cropping the passion fruit vine that was planted a few years ago before we had our system set up in that area. Due to this being a crop bringing in some cash flow we have found a way to work with it until we phase it out and replant new vines in an area that wont become a problem.

Plant your vines in an appropriate place, or design systems to be utilized for vines!

For more information about my agroforestry experience check out this link

Let me know if y’all have any questions or thoughts!

1 Year Syntropic Agroforestry Update

Hey everyone! Starting to ramp up our youtube channel. Check out this video and let me know if you have any questions. Please like and share!

Finally sharing a solid update about our syntropic agroforestry system. The rows in this video are 10 months and 1 year old. Based off of a 15 year old fallow on ripped lava flow. Dialing in syntropic systems in different areas can be a challenge, this is my first rock system and this is our home.

Come grow with us!

Green Onion var. Koba (Allium fistulosum)

Description

Green onions, Allium fistulosum, are a wonderful, perennial, clumping onion relative. This specific variety, known as “koba,” is a Hawaiian cultivar that is perfectly adapted to our climate. Koba is a short-day onion variety that produces numerous seeds during the winter. Planting in the spring (April-May) allows the plants to grow as long as possible before flowering is induced by changes in day length. This cultivar has thin leaves and grows to about 18 inches tall. The most interesting part of the plant is the way it produces a single, large, fat stem that eventually divides into multiple smaller stems. This onion can be harvested before division, when it is still fat and large, or after, to take advantage of more, albeit smaller, stems. This plant has a regular green onion flavor: mild in the leaves and more pungent towards the bulbs. This is the onion relative to grow; it is as abundant as it is delicious!

Ripe Seed

Propagation

Koba green onions can be propagated by seed, by division, or from bulb “scraps.”

Plant seeds ½ inch deep.

Divide clumps once they have multiplied.

All green onion varieties will re-root and grow from the bulb (bottom white part) of the plant. Simply remove the bottom two inches including the bulb and re-plant.

Remove plant from ground

Divide

Remove tops

Replant and fertilize

Care

Koba green onions are very easy to grow. Keep them weeded when young, give them full sun, and fertilize regularly, especially after a harvest. I’ve found they grow incredibly well in containers, which reduces weed pressures, and you can keep them close to your kitchen for ease of harvest.

Matures in 50-60 days from clump division or 80-90 days from seed.

Eating

Flowers, greens and scapes are edible.

Green onions are perennial if harvested properly. Cutting off the top of the plant one to two inches above the soil surface will allow the plant to regenerate and grow a new top. The harvested tops can be consumed normally. Unfortunately, harvesting and eating the onions in this manner doesn’t allow you to eat the more potent part of the plant, so supplementing additional stems can make up for this missed pungency.

For the full green onion experience, pull them entirely out of the ground and consume from bulb to greens, just as you would with onions from the market.

Green Onion Scapes (unopened flowers)

Where to obtain planting materials

I got my original seed from Hawaii Seed Growers Network, a wonderful resource for Hawaii. https://www.hawaiiseedgrowersnetwork.com/product-page/koba-onions

Green onions can always be grown from market purchased products. Buy fresh green onions and replant the bulb. This is a great method; however, you may not be sure of variety nor the specific cultivar habits.

My Garden

Onions are one of my favorite vegetables. It’s very hard to grow normal bulbing-type onions here in lowland Hawaii due to our daylength, rain, and lack of cool weather. I’ve tried a few times to grow normal bulbing onions and always end up with very small bulbs. Through all this trial and error, I’ve discovered that green onions are a good enough replacement without all the effort! Green onions flourish here, sometimes reaching up to two feet tall, and always have leaves ready for harvest. Every garden should have a patch of green onions near the kitchen!

a different green onion variety. notice larger leaves and blueish tint

Koba grow extremely well in 1/2 gallon pots. perfect for cultivating near your kitchen

Happy Gardening!

Banana Deficiencies in Hawaii

Banana Deficiencies in Hawaii

Bananas are incredible plants; their vigor and robustness make them exciting to watch as they grow. When they put out their giant flower buds, I’m always amazed! Bananas are the epitome of a tropical garden, renowned for their giant leaves fluttering in the wind, and the huge racks of food that they produce. Bananas are, unfortunately, the most difficult plant I’ve ever grown. I regularly feed them, yet they are almost always deficient in micronutrients. It’s important to recognize the different patterns of deficiencies to combat and keep them healthy. A vigorous, healthy banana will pump out a hundred pounds of fruit in a single rack! If your banana plants are not upright, robust and deep green, pumping out a leaf weekly, they are hungry, and most likely micronutrient deficient.

Williams. Large healthy leaf unfurling next to good sized rack

Iholena. Erect cigar leaf unfurling healthy

Dwarf Namwah. Deep green wide upright leaves

Dwarf Cavendish. Healthy leaf stature

Due to heavy degradation, banana nutrients are notoriously low in Hawaiian soils. Calcium, boron, potassium and sulfur are almost always low or unavailable to the plants. Luckily, this can be mitigated with a bit of care and consideration.

Maoli. Ele ‘ele

Banana Bunchy Top Virus (BBTV)

Banana Bunchy Top Virus is prevalent in all parts of Hawaii and is detrimental to the species. Sometimes deficiencies may look like BBTV. Knowing the symptoms of both BBTV and nutrient deficiencies will allow you to address the issues appropriately. Be sure to source virus free plants from a legitimate propagator. Too many times, people get plants from friends and they come with BBTV. There is no known cure for BBTV; a mat that has been infected will always carry and spread it. The main disease vector is aphids, who feed on the plants’ sap, and can quickly spread the disease from plant to plant. KILL YOUR BUNCHY TOP BANANAS! There is no other way around it, dig them out of the ground and chop up the corms and leave in a place they will die, like cement or in a trash bag out of the weather.

If you are suspicious of a banana plant potentially having BBTV, get it tested! The University of Hawaii extension offices do banana bunchy top virus testing for $12 per sample. Simply take the third leaf from the top, not counting the cigar leaf, cut it in half and cut out a 2 inch section on either side of the leaf midrib. Put in a plastic bag, label and bring it into the offices. Be sure to clean your tools with rubbing alcohol between sampling. I’ve tested many plants at the Komohana Research and Extension Center in Hilo. They have a very quick turnaround, and their results are very accurate.

Banana Bunchy Top Virus Leaf Sample

GO TEST YOUR BANANAS; HAVE YOUR NEIGHBORS TEST THEIRS! This needs to be a community effort to reduce the problem. Many people have Banana Bunchy Top Virus and do not know or do not care. Inform other people of the problem and help them test and remove their bananas. It’s almost not worth the effort for someone to sell/propagate clean bananas because the keiki will be introduced into a diseased location, a very depressing issue. We need to change this, or we simply cannot grow bananas in populated areas. We’ve already lost many of the wild banana plants to habitat depletion and pig damage; do we really want to live in a Hawaii without bananas?

References for Banana Bunchy Top Virus. Information and detailed descriptions.

https://www.ctahr.hawaii.edu/bbtd/downloads/bbtv-details.pdf

https://www.ctahr.hawaii.edu/bbtd/

Nutrient Deficiency Patterns

Once you are sure your plants do not have Banana Bunchy Top Virus, it’s time to start identifying deficiency patterns. All banana varieties should produce fat, erect cigar leaves that open into very large, wide and dark green upright leaves. The leaves should sequentially get larger until the leaf before the flag leaf comes out just before flowering.

Be aware that one or multiple deficiencies may show up at the same time.

As water is a necessity for nutrient uptake, drought may lead to deficiency symptoms, including slowed leaf emergence and bunching, even in otherwise fertile soils. It may be a good idea to confirm plants are receiving proper irrigation prior to investing time and money into soil amendments.

Certain nutrients (calcium, boron, iron) cannot be stored and moved within the banana plants’ sap; these will need to be repeatedly added in order to be continuously accessible to the plants.

Many soil amendments are known as “slow-release minerals,” which means it will take time for them to become accessible and be utilized by the plant. A number of deficient-looking leaves may unfurl before results are visible.

To cure a plant more readily, utilize a micronutrient spray along with the mineral dispersal. This will cover the short term while the addition of minerals to the soil works in the long term.

The newest leaves on the plant tell signs of calcium and sulfur, the older leaves show potassium, nitrogen and iron levels.

Remember, an entire banana mat is a single plant, check out my post on bananas for more info.

Boron

Boron is necessary for normal formation and functioning of roots and cell walls. A classic boron deficiency symptom is abnormal unfurling of leaves. Boron deficiencies are closely linked to calcium deficiencies hence the common term “calcium-boron deficiencies.” Be very careful dispersing boron, as too much can be toxic to the plant. Normal store-bought Borax is an easy solution for adding boron.

Symptoms: Leaf etching (raised streaks across the veins); light yellow speckling; crinkling or wavy leaf edges and irregular corrugations; deformed leaves (twisted, curled, buckled or convoluted).

Recommended solution: One teaspoon of borax for immature plants; two teaspoons of borax for mature plants (plants with keiki).

Calcium-boron and sulfur deficient

Boron Deficiency. Irregular corrugations

Boron Deficiency. Crinkling or wavy leaf edges

Boron Deficiency. light yellow speckling

Boron Deficiency. light yellow speckling

Calcium

Calcium is necessary for skeletal development, rigidity, plasticity and hydrostatic pressure. Lacking in this mineral causes deformities indicating tissue collapse, overall weakness and is closely linked to boron deficiencies. Calcium also raises pH, enabling mineral uptake in acidic soils. Calcium deficiencies are, by far, the most common in my garden.

Symptoms: Flat, Travelers Palm look; bunched leaf stalk; leaves gradually diminishing in size and deforming, twisting, cupping, buckling and having wavy margins; newly unrolled leaves droop, unravelling slowly, weakly or incompletely, sometimes sticking together and tearing when opening; loss of rigidity in the leaf tips; marginal leaf yellowing; trunks weaken, and flower stalks lose rigidity.

Recommended solution: add limestone, crushed coral, calcium carbonate or dolomite. Mix into the soil. Use one half cup for immature plants, one cup for mature plants (plants with keiki).

Calcium Deficiency. Curled leaf tip

Calcium Deficiency. Deformed leaf

Calcium Deficiency. Collapsing trunk

Calcium Deficiency. Bent cigar leaf

Calcium Deficiency. Curled/buckled leaf. Loss of rigidity

Calcium deficiency. Non-normal leaf unfurling. Yellowing.

Calcium deficiency. Deformed/Shredded cigar leaf

Calcium deficiency. Shredded Leaf

Calcium deficiency. Bent cigar leaf

Nitrogen

Nitrogen is an essential nutrient to all plants. It aids in the manufacturing of amino acids and proteins, promotes the production of chlorophyll, enzymes, vitamins and hormones. Without nitrogen, plants become stunted, anemic and weak. Nitrogen is mobile within the banana plant and will translocate into younger leaves. Bananas require water to absorb nitrogen, so water your plants in times of drought.

Symptoms: Stunted plants produce few leaves; older leaves turn chlorotic (yellow-green); bunches appear tiny; overall weakness; vibrant pink or purple leaf stalk wings that are not typical to the cultivar; weak roots; few or no keiki.

Recommended solution: Spread nitrogen fertilizer six to twelve times annually. We use Organic Nutri-Rich Chicken Manure Pellets 4-3-2 with Calcium 7% monthly, utilizing five to six cups per mature plant. Any animal manure will work as long as it’s properly composted.

Nitrogen Deficiency. Dwarf Brazilian/Dwarf Apple. Pink leaf margins. Yellowish lower leaves

Potassium

Potassium is vital for growth, overall health, disease prevention, fruit production and quality.

Symptoms: Browning of leaf margins; premature and rapid yellowing of leaves; slow, stunted growth; fewer leaves coming out at an increasingly slow pace; general plant yellowing; maroon patches on leaves; skinny trunks; tiny racks with small, underdeveloped fruit; midribs of older leaves may be broken at one half to two thirds their proper length; Travelers Palm appearance.

Recommended solution: Add wood ashes when the flower bud appears. Add Sulfate of Potash 0-0-52. One quarter cup for immature plants and one half cup for mature plants. Also add fertilizer as the flag leaf appears before budding.

Potassium Deficiency. Non normal yellowing of lower leaves

Sulfur

Sulfur is essential for vitamin A production. Due to Hawaiian bananas being rich in vitamin A, they need larger doses to produce properly, especially Popoulu varieties.

Symptoms: Very pale-yellow coloration in new leaves; leaf blades become very soft and delicate, and tear easily; new cigar leaves may emerge completely white.

Recommended solution: Add Ammonium Sulfate 21-0-0 or Sulfate Potash 0-0-52, one quarter cup for immature plants and one half cup for mature plants. For Popoulu bananas, add one and a half cups for mature plants.

Sulfur Deficiency. Yellow cigar leaf. Calcium-boron deficiency

Sulfur Deficiency. Yellow new leaf

Sulfur Deficiency. Yellow new leaf. Notice tearing of margin on lower leaf

Pests

Rose Beetle Damage

Solution: Hand pick beetles at night and crush or drown in soapy water. Hand picking is surprisingly effective in reducing populations.

Banana Rose Beetle Damage

African Snail Damage

Solution: Hand pick and squash or drown in soapy water. Collect at night.

African Snail Damage

Banana Corm Weevil

Solution: Obtain weevil-less propagation material, source from a legitimate propagator. Always inspect corms before planting. If a plant has weevils, learn about the correct way to clean corms to dig and remove weevils prior to planting and/or propagation. Plant in a non-infested area.

I do not have weevils nor any photos with their damage at this time. If plants fall over due to weakened roots, banana corm weevils are most likely the problem.

Properly cleaned corm due to banana weevil damage

Tips

To combat potential deficiencies, mineral fertilize along with your normal fertilizing procedures when planting. Up to four times per year (two to three times in low rainfall areas, <60 inches), add the following to the soil:

Immature Plants                                             Mature Plants (Plants with keiki)

1 teaspoon borax                                            2 Teaspoon Borax

½ cup dolomite                                               1 cup dolomite

¼ cup of Ammonium Sulfate 21-0-0               ½ Cup Ammonium Sulfate 21-0-0

Or ¼ cup of Sulfate Potash 0-0-52                  Or ½ Cup or Sulfate Potash 0-0-52

Dig bananas as large of a hole as possible when planting. Place fish scraps and compost in the bottom of the hole. Plant them deeper than their rootball. Fertilize with nitrogen monthly. Pee on them regularly. Spray micronutrients twice monthly. Apply composts and mulch thickly and widely around the base of the plant as often as possible. Literally hill them as you would potatoes, trunks will not rot from contact with soil/mulch. Do not remove leaves until they are completely brown. The plants may still be utilizing those leaves and translocating nutrients. Manage a few delicious varieties intensively; resist the urge to mass plant them. Understand they are difficult to manage properly, which is essential to reduce the spread of BBTV. (Don’t get in over your head!) Test your banana plants for BBTV and share them with others committed to stopping the spread of the virus.

All your efforts won’t be fruitless! Watch the plant pump out larger racks than you’ve ever seen!

Dwarf Maoli

Dwarf Namwah

A lot of my information came from the amazing book: The World of Bananas in Hawaii: Then and Now by Angela Kay Kepler and Francis G. Rust. For a much more detailed and in-depth discussion of bananas in Hawaii including varieties, lore, recipes, nutrients, deficiencies, diseases and pests, check it out! https://uhpress.hawaii.edu/title/the-world-of-bananas-in-hawaii-then-and-now/

Citation: Kepler, A. K. and F. G. Rust. (2011) The World of Bananas in Hawai’i: Then and Now – Traditional Pacific & global varieties, cultures, ornamentals, health & recipes. Pali-O-Waipi’o Press. Haiku, Hawaii.

Happy Gardening!