MANUAL No - Forest and Wood Products Australia

Manual No. 8: Termite Attack 48
texpert P1 t2 t3 t4
mean mean 0.5
d10
P2 mean t2 t3t4
20
P mean t t t t
3 1 2 3 4
(4.19)
where d denotes the shortest distance from the fence to the house or 10 m, whichever is less
(see Figure 4.6).
Examination of data in the Termite Tally indicates that a suitable equation for
estimating Psuburb is
P
suburb
tsuburb100,
tsuburb100
years;
1
tsuburb
100
years.
(4.20)
where tsuburb denotes the age of the suburb at time zero, the year in which the target house was
built.
Also, in the absence of any available data, it will be assumed that
Pgarden = 0.5Psuburb (4.21)
Pgarden/suburb = 0.5 (4.22)
48