Isle of Wight Disease in Hive Bees. 29 
stocks had died of Isle of Wight disease. This new stock and hive is 
named G14. 
No further cases of Isle of Wight disease have arisen in the Nicolson 
Apiary, although, as the records below show, Nosema could be obtained from 
bees there at almost any time. 
Outbreaks of Isie of Wight Disease in Lewis. 
Date of ; Nosema |. If 
: Date of How : 
Introduction Stock ee OnOr ; Site, etc., 
of Stock Oubbnedis "y.8. terminated disinfected | 
29/9/10 31/1/11 Blacks A9 — Destroyed Yes 
from Sussex and Bayble OTA 
6/10/11 American y.s. Recovered — 
Goldens B14 
6/10/11 Blacks C13 y.s. Destroyed Yes 
12/10/11 
20/1/12 Blacks D1 x Allowed to die Yes 
out 29/2/12. 
21/5/12 28/5/12 Blacks D4 ? Remainder sent No 
from Exeter to G-S., 
| Cambridge 
31/5/12 10/9/12 Blacks KM = Died out | Yes 
from 8. Eng. 12/10/12 
4/6/13 18/6/13 Swiss Very few Died out No 
from Exeter. pedigreed jsporesin1;| before Winter 
El4 numerous 
in Sept. 
Autumn 1909 28/7/13 Blacks Gp O Died out No 
from Duirinish Winter 1913-14 
Autumn 1913 | Early Spring | Welsh F14 O Recovery in 1914 No 
from Wales 1914 Relapse in 1915 
11/7/14 12/7/14 =. Black O Blacks died out a 
from Exeter (at Bay ble) in Autumn ; 
remnant of 
Yellows sur- 
vived Winter 
The number of stocks in the apiary varied from 4 to 14 during this period. 
X—spores present. o—spores absent. y.s.—young stages, 
Summary of Characteristics of Isle of Wight Disease as seen in 
Lewis Outbreaks, 
7 
(1) In relation to area beyond the Island. 
(a) Simultaneous outbreak of two cases 5} miles apart of stocks intro- 
duced from same source (Sussex), 4 months previously. A9 and 
Bayble stock. . 
