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Bee questions 3 Flashcards

1
Q

How does the bee show the place of food to other if it is within 10km radius?

A

Waggle dance

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2
Q

Signs of healthy brood?

A
  • Expanding circles
  • Larvae in unsealed cells = plump, mottled or pear coloured, capping slightly
    ahead and dark brown
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3
Q

Winter activity of apiary?

A

Covering combs, closing lines, controlling enemies

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4
Q

Composition of honey?

A
  1. Sugar
  2. vitamins
  3. minerals
  4. organic and F acids
  5. Enzymes.
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5
Q

What is swarming?

A

Queen leaves with 50% of the workers to another nest site

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6
Q

Who has venom?

A

Queen and workers

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7
Q

Number of combs in strong and weak colony?

A
  • Strong 7-8 combs
  • Weak < 5 combs
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8
Q

Summer activity in apiary?

A
  • Moving to rasp + sunflower, returning home, raising new queen + swarming
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9
Q

Pathogen of CVP?

A
  • RNA virus
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10
Q

APV vector, host, symptoms, mission

A
  • Vector: V. destructor
  • Host: Mainly workers
  • Symptoms: Non
  • Mission: Nurse bees infect larva via gland secrete, larvae die before cell
    sealing

APV = Acute Paralysis Virus

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11
Q

Spring activity in apiary?

A

Open hives, stimulating feed, develop colony, veterinary control, move to pollen position

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12
Q

Autumn activity in apiary?

A

Cleaning, sugar syrup feeding, Varroa control, winter preparation

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13
Q

Can aspergillus reproduce on adult bees?

A
  • Fungi can multiply on adult bees
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14
Q

How many bee species?

A
  • Worldwide there’s roughly 25.000 species of bees, but only 7 species of honey bees with a totalt of 44 subspecies
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15
Q

How many bees on both sides of a comb?

A
  • 1kg bee = 10.000 individuals
  • 1 comb with bees on both sides = about 1 kg
  • 10 x 10 cm honey comb = 300-350gram honey
  • 10 x 10 cm comb = 800-850 brood cells
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16
Q

Which lives in the malphigian tubes?

A
  • Malphigamoeba mellificae
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17
Q

What do bees use to sterilise the cells?

A
  • Propolis (from bud of trees)
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18
Q

Name an asian mite?

A
  • Tropilaelaps clareae, T. mercedesae - considered serous mites for Apis mellifera
  • Varroa destructor - Asian big bee mite
  • Acarapis woodi - Tracheal mite
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19
Q

Cyst is infective stage of nosema? (true/false)

A
  • False (the infective part is the spore)
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20
Q

Can Varroa jacobsoni infect apis mellifera brood/adult?

A
  • NO, only V. destructor can
21
Q

The louse is often mixed up with?

A
  • Often confused with Varroa mites
22
Q

What produces pheromones?

A
  • The queen; produce airborne pheromones called queen substance that keep the colony functioning orderly
23
Q

What glands do queen and drones not have?

A
  • Pharyngeal gland: Produce royal jelly and also the most important digestive gland (invertase)

Queen and workers have dufour gland

24
Q

When does nosema start to decline - winter, spring, summer or autumn?

A
  • Clinical manifestation mainly at the end of winter and spring, very rarely in summer and winter
25
Chilled brood would be found where in the comb?
* Usually occurs early spring when brood nests expand rapidly as there is a shortage of adult bees to cover all the brood and weather suddenly turn cold * Often found on the fringes of the brood area * In extreme cases, brood cells are punctured and uncapped for the adult bees to decapitate the pupae
26
Whit nosema, would you see; Dysentry, failure to fly, both or neither?
* Both
27
Who can Deformed Wing Virus infect?
* In workers and broods * Vector: V. destructor * Causing deformed or poorly developed shrunken wings
28
Most destructive causative agent (in Europe)
* Number 1: American foul brood * Number 2: Nosemosis
29
* Who has the longest larvae stage?
* All have 5 larval stages * Queen has 6 days long * Worker has 5 days long * Drone has 7 days long
30
Dance of bees: vertical, wiggling, both?
* Round dance and waggle dance
31
Causative agent for swollen abdomen?
* Nosema apis (microsporidium)
32
Causative agent for Isle of Wight disease?
* CPV (chronic paralysis virus)
33
Which larvae scales easily?
* Paenibacillus larvae
34
Which is NOT parasitic to Apis mellifera?
* Japan + Thailand haplotype
35
Scientific name of European foul brood?
* Putrificatio polybacteritica larvarum
36
Where can you find the corbicula?
* On the hind legs (its the pollen busket)
37
What is a worker
* Non fertile female
38
Where do you find the eggs of drones?
* In the fringes of brood
38
How old are the larvae most commonly infected with AFB?
* 12-36 hours after hatching from egg
39
How many day old larvae will die of Nosemosis?
* None, they can’t be infected
40
In which infection does dirt appear in the hive?
* Nosemosis apium
41
How many minutes does it take for the milk to curd in case of AFB?
* 1 minute
42
Which of the larvae of the large wax moth can be confused with another larvae?
* Larvae of small hive beetle (Aethina tumida)
43
If honey is treated for 20 minutes on 100 degrees C, can the spores of AFB survive?
* Yes! Need minimum 1 hour on 112 degrees and honey can only be used for industrial purposes after this treatment
44
How long does AFB spores survive?
* 3-5 decades 30-50 years??
45
How long is the incubation time of AFB?
* 15 days AFB = American foulbrood
46
EU directive for honey quality?
* Council directive 2001/110/EC of 20 December 2001 relating to honey
47
Which one will make noise when comb is shaken?
* Stone brood
48
Where do you find the tracheal mites at dissection?
* In the first pair of thoracic spiracle of the adult bees - first segment of the respiratory tract - thorax

Bee hygiene (19 decks)

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