Western Apicultural Conference - Hawaii Tropical Fruit Growers
Transcript of Western Apicultural Conference - Hawaii Tropical Fruit Growers
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Hawaii Apiary Program
Danielle Downey Hawaii State Apiary Specialist
Tropical Fruit Growers Conference Sept 14, 2012
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• Pollinators in Hawaii • Honeybees in Hawaii • Current problems & situation • Apiary Program services and strategies
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Introduced • Honey bee • Leaf cutter bee • Carpenter bee • Butterflies • Wasps • Flies • Birds • Incidental flower traffic
• Hylaeus spp • Butterflies • Flies • Birds • Incidental flower traffic
Native
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Hylaeus species (Colletidae)
• “yellow face bee” • 60 species native to
Hawaii • Pollinate native plants
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Leaf cutter bees (Megachilidae)
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Carpenter bees (Xylocopidae)
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Hawaii Honeybee History • Not native to Hawaii • Arrived in 1857 from California • 1890s ranching grows, kiawe requires bees
– lantana, guava, koa, ohia lehua, ti, Christmas berry, pineapple, coconut
–1892 first Macadamia nuts arrive • Various imports until 1909, now illegal • 1918-1941 over 1 million pounds/year honey
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Hawaii Honeybee History
• 1930 American Foulbrood, near wipeout • Learn to manage disease, rebuild • 1952 11,900 hives on islands, 25 commercial
beekeepers • Growth industry for honey and queen rearing • Unknown number of beekeepers presently
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Products of the hive
• Honey • Pollen • Propolis • Beeswax • Royal Jelly • Bee Venom
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Hawaiian Honey • Very desirable in market • High value
– $40/lb
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Queen Bee Production • Critical part of managed colonies • Climate allows extended seasons
– Early availability to USA and Canada – Three producers ship off island
• With colony collapse on mainland, demand exceeds supply
• Hawaiian beekeepers enjoyed freedom from Varroa mite and Small Hive Beetle
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What is the most valuable thing we get from bees?
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Pollen
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Value of pollination: $15 billion/yr Rely heavily:
apricot, citrus peaches, pears, nectarines, plums, grapes, brambleberries, strawberries, olives, melon, peanuts, cotton, soybeans, and sugarbeets
Totally dependent: almonds, apples,
avocados, blueberries, cranberries, cherries, kiwi fruit, macadamia nuts, asparagus, broccoli, carrots, cauliflower, celery, cucumbers, onions, legume seeds, pumpkins, squash, and sunflowers
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http://www.agric.wa.gov.au/PC_91817.html?s=1034887905#beetubes
• Apple Apricot Avocado Banana Black currants Blackberry Blueberry Cactus (prickly pear) Cherry Citrus Cranberry Cumquats Currants Custard apple Durian Feijoa Gooseberry Grapefruit Grapes Guava Jackfruit Kiwifruit Lemons Limes Loganberry Longan Loquat Lychee (Litchi) Mandarins Mango Mulberry Nashi Nectarine Olives Oranges Papaw, Papaya Passionfruit Pawpaw Peach Pear Persimmon Plum Pomegranate Prickly pear cactus Prune Rambutan Raspberry Red currants Rock melon Tamarind Tangelo
Tropical Fruits need pollination
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Unknown number of beekeepers in Hawaii, annual
bee-pollinated farm sales valued at $212.8 million
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By island… • Statewide estimate 12,000 managed hives
–Hawaii: 10,000. BIBA –Kauai: 1,000. KBEE –Maui: 500. new group –Molokai: 100. DHHL/CTAHR extension –Oahu: 600. HBA, Co-op, UH Manoa Bee
Team –Lanai: 3 beekeepers
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Recent arrival of three unwanted pests...
• Varroa destructor, a parasitic mite • Small Hive Beetle, a prolific and well
adapted pest • Nosema cerana, a microscopic gut
parasite
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Varroa mite
• Discovered on Oahu, April 2007 • Discovered on Big Island August 2008
– Eradication effort (failed)
• Widespread on both islands • Continued trap surveillance on other islands
– Education – Early detection, rapid response
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VARROA
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Small Hive Beetle
Highly destructive in Hawaii – Secondary pest other places – Lives on fruit, feral hives, or
just wait around for failing colonies
– Long lived (over a year) – Strong flyer
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Small Hive Beetle History • Native to Africa, minor pest there • Discovered Florida, 1998 • Big Island April 2010 • Oahu November 2010 • Molokai May 2011 • Maui July 2011 • Kauai June 2012
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4/10
11/10
5/11 7/11
SMALL HIVE BEETLE
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Hawaii is great habitat: Feral Hive Density Very High
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Implications….
• Pollination was a ‘free-bee’ • Growers do not consider managed bees part
of their productivity • Beekeepers agree to pollination locations for
the honey crop (unpaid) • Unknown pollination need, pollinator loss • We are living the experiment!
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• Beekeeping gets harder in Hawaii • Hard to find bees to rebuild • Fewer pollinators for Hawaiian agriculture
– Jefts needs 100 colonies for $3mil/watermelons – Avocado, macadamia nuts, longan, melons,
lychee, berries, stonefruit, apples – Mango, coffee, many crops benefit from bee
pollination (faster, bigger, more)
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Apiary Program & Pollination Security • Outreach:
– Protecting Pollinators from Pesticides – Pollinator Planting Guide
• Voluntary Beekeeper Registry – 35/124 willing to pollinate
• Surveys of growers indicate pollinator need • Pollination Contract template, Best
Management Practices • East Hawaii Tropical Fruit Growers & Big Island
Beekeepers partnership for Apiary Days
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California Almonds ~800K acres
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On the mainland: over 2 million bee colonies are rented each year for pollination services*, most of them travel over the road. Rent is $150/colony! *they need queens from Hawaii!
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Commercial beekeeping changes Until 1980’s: 75%
managed for honey production
Today: 75% manage for pollination
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Honeybee Pollination paths
January-Feb
500 miles
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Hawaii’s advantage
Agricultural practices still bee-friendly Diverse, few large monocrops, less pesticide
application Protecting pollinators from pesticides
Habitat includes many blooming plants Seasons allow foraging all year In contrast, California almonds require
pollinators but cannot support them after 6 week bloom period.
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Statewide services (see handout) • Regulations to prevent bee imports (PQ)
– Africanized bees intercepted on Oahu • Pollination services development • Swarm response lists • Inspections to facilitate commerce • Public events everywhere to raise awareness, including
protecting bees from pesticides • Working to develop resistant stock in Hawaii • Bee Laws to support regulatory apiary program do not
exist in Hawaii, our focus is education.
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Just in Time: Pollinator Awareness!