Table 9. — Canker condition of the citrus trees in Plat /, Orchard A, Lamao, at the different seasons. 
Variety. 
Species. 
Leaves alTectcd. 
1 
September 1. 1917. 
October 30. 1917. 
Jnnuary 12. 1918. 
Mny 26 
1918. 
August 1. 191S. 
Valencia - 
Do 
Tizon 
Do 
Citrus sinensis 
do 
Citrus nobtlis 
do 
do 
Citrus sinensis 
do 
do 
0 
Number. 
0 
0 
0 
Number. 
0 
* 0 
Number. 
0 
0 
0 
0 
Per cent. 
0 
Number. 
0 
0 
Per cent. 
0 
0 
0 
0 
Number. 
0 
0 
0 
Do 
Do 
Native orange 
Citrus nobilis 
do 
Citrus sinensis 
W 
0 
° 
J 
0 
(b) 
0 
0 
0 
0 
0 
0 
0 
Murrill orange 
Do 
Native fruit 
Do 
Citrus species 
Citrus cxeelsa 
do 
1 
0 
0 
10 
10 
: 
; 
; 
0 
j 
<•) 
0 
Sampson 
Do 
Rough lemon 
Seedless puromclo 
Do 
White seedless puinmelo 
Do 
Cabuyao 
Citrus Itmonia 
Citrus maxima 
do 
do 
do 
Citrus hystrix 
do 
Citrus maxima 
100 
10 
BO 
100 
11 
0 
10 
23 
26 
0 
7 
(b) 
0 
0 
2 
(b) 
0 
0 
0 
0 
0 
0 
b Dead. 
c Five twigs cankered. 
The Philippine Journal of Science 1021 | 19,2 Lee: Citrus-canker Control 
