Experiment Two
Spring Treatment of Nosema using Fumigillan in Pollen Patties
Experimenter: Eric Abell

Objective: to determine if it is advantageous to feed fumigillan in patties in the spring.
Method: Pollen supplement patties were made with and without fumigillan in the recipe. As I visited each yard, a 1 lb (approx) patty was placed on the top bars of all colonies. I selected 1 pallet and collected fees from the underside of the inner pillow from all 4 colonies (or 3 if there were only 3 available). I intend to sample these same colonies in a few weeks.
Question: Will there be a difference between those colonies that received fumigillan in the patty and those that did not? If so, how much?

Nosema spore count before Fumigillan patty application

# Millions of
Spores/bee
Treatment
(See Note)
1 4.00 N
2 40.00 N
3 0.05 N
4 0.00 N
5 6.00 N
6 0.00 N
7 4.00 N

8

0.05 N
9 1.20 N
10 0.05 N
11 0.65 N
12 0.90 N
13 0.00 D
14 0.00 D
15 0.00 D
16 0.05 D
17 4.75 Y
18 0.00 Y
19 4.75 Y
20 0.00 Y
21 0.00 Y
22 15 or 0 Y
23 0.00 Y
24 15 or 0 Y
25 0.00 Y
26 0.00 Y
27 0.00 Y
28 0.05 Y
29 0.00  Y
30 0.00 Y
31 ? Y
32 0.00 Y
33 20+ Y
34 0.00 Y
* = these samples may have been switched 

 

Fumigillan Dose in Patties: D = 9.5 g /100 colonies
Y = 4.75 g/100 colonies
N = None

 

Nosema 98

before patty:

Fumigillan

at pollen

reduced

million

Yes/No

flow

spores/bee

Double

million

spores/bee

1

Kalisvart

4.00

N

2.5

2

Derouin

40.00

N

0

3

Vischer (W)

0.05

N

4

4

Vischer (S)

0.00

N

5

Vischer (N)

6.00

N

6

Yakimetz

0.00

N

7

Schwing

4.00

N

0

8

Hein

0.05

N

9

Amelia

1.20

N

10

Sharron

0.05

N

1

11

Pasay (Vic)

0.65

N

0.05

12

Pasay (S)

0.90

N

1.45

13

Kuchmak

0.00

D

14

Pasay (N)

0.00

D

15

Kotyk

0.00

D

16

Weeks

0.05

D

17

Rozak

4.75

Y

18

McRobbie

0.00

Y

19

Walters

4.75

Y

0

20

Andersen

0.00

Y

21

Andersen-E

0.00

Y

22

Abramski *

15 or 0

Y

23

Andersen-W

0.00

Y

24

Milligan *

15 or 0

Y

0.6

25

Scopick

0.00

Y

26

Schafer

0.00

Y

27

Tuckey

0.00

Y

28

Pasnak

0.05

Y

0

29

Thereux

0.00

Y

30

Prins (S)

0.00

Y

31

Deveaux

?

Y

32

Goutbeck

0.00

Y

33

Prins (E)

20+

Y

2.35

34

Boisjoli

0.00

Y

  Note Fumigillan D = 9.5 g /100 colonies     Y = 4.75 g/100 colonies

* these samples may have been switched