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Wild Bees Gone, Hawaiʻi Farms Now Need Beekeepers

Danielle Downey, Jen Rasmussen, Jenny Bach, Hawaiʻi Department of Agriculture Apiary Program; Paradise Nectar Apiary; Hawaiʻi Island beekeepers · USA (Hawaiʻi)

Three Hawaiʻi Island beekeepers answer a moderator's questions and the room's: the state apiarist Danielle Downey, treatment-free beekeeper Jen Rasmussen of Paradise Nectar Apiary, and Jenny Bach, who does hive removals and works in school gardens. They cover how the varroa mite (2008 on the Big Island) and small hive beetle (2010) wiped out most wild colonies, what that means for farmers who used to get free pollination, pesticide residues in hives, fire-ant baits, and what natural farming might do for bees. Nobody on the panel had data on natural farming and bees; one beekeeper had tried a lactic-acid brew of dead beetles as a repellent.

What they found

The question

What shape are honey bees in on Hawaiʻi Island after varroa and the small hive beetle, and what can beekeepers and farmers, including natural farmers, do about it?

How they tested it

A moderated panel with audience questions, not a trial. Three beekeepers speak from their own work: one state apiary program (statewide inspections, research and classes), one treatment-free apiary (hive count not stated beyond the losses and sales below), one hobbyist and former commercial beekeeper. Island-wide hive numbers, loss rates and costs are not stated except where listed.

What was compared
  • Treatment-free beekeeping — Jen Rasmussen: no chemical treatments; bees build their own comb (top bar and foundation-free Langstroth); splits restarted in new boxes.
  • Hygienic (mite-resistant) stock — Hawaiʻi Department of Agriculture: semen from a USDA lab line selected for varroa-sensitive hygiene, bred into local bees for consecutive years.
  • Dead-beetle lactic acid brew — Jenny Bach: dead small hive beetles brewed in lactic acid and sprayed on hives as a repellent. No rate or recipe given.
  • Diatomaceous earth tray — Jen Rasmussen: tray of diatomaceous earth under the hive that beetles fall into; she removed half the trays where fire ants were eating beetles.
  • Fire-ant bait in covered cups — Jen Rasmussen: Avant and Tango alternated, Avant about every three months; Amdro in lidded sauce cups with side holes, under hive stands.
Results
  1. Varroa reached Oʻahu in 2007 and the Big Island in 2008

    Mainland had it since the 1980s; as of 2015 it had not spread to the other islands.

    ▶ 7:03 As spoken

  2. Where varroa goes, feral bees get wiped out

    She suspects feral colonies outnumbered managed ones 100 to 1 before varroa, so managed bees are now the main pollinators.

    ▶ 7:21 As spoken

  3. Small hive beetle arrived in 2010; its damage is 'downstream from varroa'

    Colonies weakened by varroa and the viruses it spreads are the ones beetles overrun.

    ▶ 7:51 As spoken

  4. Lost 36 hives in one month after small hive beetles arrived in 2010

    Caption in her documentary clip: 'I lost 36 hives I cared for in 1 month after the arrival of the small hive beetles in 2010'.

    ▶ 19:40 From the slides

  5. A beetle-struck hive can turn to slime in about 24 hours

    If combs are spaced so bees can't get between them. She saved one hive by scooping the bees into a clean box in a different yard; the honey was lost.

    ▶ 20:50 As spoken

  6. Early on, beekeepers treated for varroa every month or two

    Year-round brood in Hawaiʻi means year-round mite breeding; no winter break as on the mainland.

    ▶ 25:26 As spoken

  7. The state is breeding hygienic, mite-resistant bees from USDA semen

    Live bees can't be imported (almost 30 known bee viruses, likely more); 'we're having some success with these bees'.

    ▶ 23:51 As spoken

  8. 'They say' there were once 800,000 hives on this island

    Her recollection of what she'd heard, including bees up on Mauna Kea at the visitor center. Not sourced.

    ▶ 10:15 As spoken

  9. Bees restarted without foundation built smaller cells and stayed healthier

    Drone foundation brought 'a lot of varroa mites all of a sudden'. Her own observation over years, no counts.

    ▶ 29:01 As spoken

  10. Dead beetles brewed in lactic acid and sprayed on hives: 'We thought it worked'

    'I don't have any hard data to tell if it did or not.' The only natural farming-style practice with bees described on the panel.

    ▶ 31:06 As spoken

  11. A research lab found dead beetles repel live beetles

    She names Peter Teal (heard as 'Peter Thiel') as the author; not checked.

    ▶ 32:22 As spoken

  12. No one on the panel had seen a direct natural farming effect on bees

    Danielle: 'I don't know much about KNF'; she knows a couple of people who made tonics for bees but hasn't tried them.

    ▶ 32:07 As spoken

  13. Glyphosate would show up in honey, not wax

    It is water soluble and wax is a lipid; wax is where you'd find most other residues built up over years.

    ▶ 35:31 As spoken

  14. An organic beekeeper's old wax held about 60 different chemicals

    Jenny Bach retelling what Richard Spiegel (Volcano Island Honey Company) told her; second-hand.

    ▶ 34:23 As spoken

  15. A blind residue screen for 100+ chemicals costs over $400 a sample

    Done by a lab in North Carolina; HDOA's pesticide investigator will look into suspected misuse.

    ▶ 36:43 As spoken

  16. Statewide pollen samples: only five positives in the hundreds tested

    Preliminary data; positives were 'orders of magnitude lower' than average (heard as 'on the mainland'); some were miticides beekeepers apply; one was clothianidin or another systemic.

    ▶ 49:08 As spoken

  17. Her main pesticide worry is systemics in coffee, which blooms while it fruits

    Beauveria for coffee berry borer shouldn't hurt bees that get back to the hive and groom.

    ▶ 16:23 As spoken

  18. Bees ignored Tango fire-ant bait set at hive entrances

    She tested the oil and protein bait formulations, without the active ingredient. Harm comes from spraying blooming plants or bees directly.

    ▶ 39:03 As spoken

  19. Hives near a customer's Tango use requeened and swarmed within weeks

    Customer in Kehena put Tango up in a tree. Small emergency queens, repeated swarming, drone-laying hives. 'I can't actually correlate these things together.'

    ▶ 39:59 As spoken

  20. Fire ants under her hives eat small hive beetles

    She took half her diatomaceous earth trays out; fire ants stay on the top bars, not the combs.

    ▶ 45:53 As spoken

  21. Mainland: 2.5 million colonies trucked for pollination at about $200 a colony

    In Hawaiʻi most beekeepers aren't paid; they trade honey for hive space. She has a sample farmer-beekeeper contract.

    ▶ 55:52 As spoken

  22. Sold about 60 colonies in two years from black 'German' bees found in removals

    She says these bees swarm every three months and rebuild comb; her observation.

    ▶ 1:02:49 As spoken

  23. Native yellow-faced (Hylaeus) bees won't pollinate mac nuts

    Honey bees do the heavy lifting on introduced crops; the carpenter bee is good on lilikoʻi.

    ▶ 1:06:32 As spoken

  24. Hawaiʻi is second in the nation for honey per hive, 93 pounds average

    About seven gallons; beekeeper-reported figure. Mississippi named as first.

    ▶ 1:08:35 As spoken

Hold it loosely
  • A panel of three beekeepers sharing experience, not a study. Most claims are anecdotes or recollections.
  • This is the 2015 situation: varroa on Oʻahu and the Big Island only, residue data called preliminary.
  • No numbers on natural farming and bees. The lactic-acid beetle spray had no data, and no rate or recipe was given.
  • The Tango story is one customer's hives with no comparison; the speaker herself says she can't link cause and effect.
  • The 800,000 hives and 60 chemicals in wax figures are second-hand.
  • Forage plants beyond coffee, mac nuts and lilikoʻi (for example ʻōhiʻa lehua or Christmas berry) were not discussed.
For your farm
  • Since the wild colonies crashed, farmers who need pollination may need to find a beekeeper nearby; the state Apiary Program makes referrals.
  • Don't spray blooming plants; if you must spray, do it at dusk or dawn when bees aren't foraging.
  • If you put out fire-ant bait near bees, put it in covered containers the bees can't get into.
  • Getting bees from a swarm call list or a split is easier than a removal, which draws small hive beetles to the stressed colony.
  • Learn to open the brood chamber and recognize varroa and beetle damage; hands-off beekeeping no longer works here.

Next to Master Cho's teaching

  • Agrees

    Natural farming uses no pesticides, which is good for bees Cho: 'Natural Farming does not use pesticide at all,' and a recovered ecosystem has fewer pests. He doesn't single out bees there.

    Natural-Farming-What-is-Natural-farming, p. 12–17

  • Goes further

    Moderator: natural farming solutions are 'all safe for bees' Cho warns that his own insect attractant bottles can kill bees if left open all day. He says to close them in the morning, when bees are out.

    2018/Cho - advanced hawaii/tour-hs @ 1:00:10 (translated)

  • Unclear

    Brewing dead beetles to spray as a repellent Cho describes fermenting insects with brown sugar, 'like FAA… uses an insect instead of fish,' and says to coexist with insects rather than kill them all. The panelist used lactic acid, and Cho doesn't address using it on a beehive.

    2017/Cho - Papaikou/IMG_9605 @ 1:11:45 (translated)

  • Unclear

    Varroa, small hive beetle and hive health No Cho passage on varroa or small hive beetle was found. His nearest bee advice is against feeding hives sugar water. Instead he says to spray Type 3 Food on broad leaves within about 50 meters of the hive.

    cho2017-poultry-day10 — day 10 / IMG_0978

“So where varroa goes, the feral bees get wiped out.”

▶ 7:21

“We thought it worked, I mean I don't have any hard data to tell if it did or not.”

▶ 31:17

“In Hawaii, I try to link farmers with beekeepers, especially because we don't have the freebies anymore.”

▶ 56:49

“So I actually have found that the fire ants are working for me in a pest management strategy.”

▶ 46:16

In this talk

  1. 0:00Welcome; moderator Lehua introduces herself
  2. 1:20Danielle Downey, state Apiary Program
  3. 3:18Jen Rasmussen, Paradise Nectar Apiary
  4. 4:04Jenny Bach, removals and school gardens
  5. 5:24Q1: How are Hawaiʻi's honey bees doing?
  6. 6:52Danielle: varroa arrives, feral bees vanish
  7. 9:28Jenny: once 800,000 hives on this island
  8. 11:40Q2: Worst pests; questions on varroa, beetles, coffee and Beauveria
  9. 17:01Woodenware and bee suits
  10. 19:29Jen's video: a hive lost to small hive beetle
  11. 22:06Danielle: hygienic bees against varroa
  12. 27:12Jenny: we bred the problem in
  13. 28:38Cell size and foundation-free comb
  14. 30:33Does natural farming help bees?
  15. 33:02Glyphosate in honey; testing wax and pollen
  16. 38:33Fire-ant baits: Tango, Avant, Amdro
  17. 45:53Jen: fire ants eat small hive beetles
  18. 47:21Residue testing on Kauaʻi; neonicotinoids
  19. 53:16Moderator: natural farming and bees on the same team
  20. 53:47Bees, beekeepers and farmers
  21. 58:29Removals, swarms and Jen's black 'German' bees
  22. 1:05:16Which bees and pollinators Hawaiʻi has
  23. 1:08:3193 pounds of honey per hive
  24. 1:09:53Jen's book; Danielle's beekeeping class

Transcript

Transcribed and checked by hand against the recording. Click any time to play from there.