142 The Philippine Journal of Science 1921 
TABLE 7.—Degree of canker affection of trees in Plat IV of the College ‘ 
of Agriculture citrus planting at Los Banos. 
Leaves affected. 
Species. 
August, 1917. August, 1918. 
Per cent.|Number. |Per cent. |Number. i 
Citrus maxima ....--------------------------------------- BO Seccceresc ee et pee 
MO ee ta abies gewe een nase sawacacecrcenuasa~ 7 pal upto nee nenaay Macleay 
5h Se ne aes enone Peer Ae eee eee De 25: [So se- == 4g ae Nae ee 
DO cas aoe cade wds cn oe -de este -n sevens ies arte 9 Soe 0 0 
Citrus sinensis .....-.-.-.-.~.----------- ------ ------------ s Be BSS cia cee 0 0 
a asymp e cot yy Soa eigen eames ay sere orate aga Sey pe nen ye ee pS 0 0 
By 2 Saas ee Es oe al. ns Hoa OO tt seeks at. 2 oh. 1 
i. tian hci eiinsins pene Ge ace pine bnew aeeneee PLN ae RS 0 0 
ae las Won Gants wucnbienenan Glee ecnaee= pe are Sao aA ot 3 
996 wos ws deuabscteas stl aes oc Pos seas e Face  e Bo lonatiemstoe oe 1 
Db ia ae ier Saar eeee ee 16 eee ee 6 
ClaPG WUE Sos os ck ceed ch ese Seo ee ees rece ne —- | senend ess 3 0 0 
i ono eA ee ee ee ee ie 0 0 
PIG 2s sliced Wis So aes oan deatucaepeugensae sources eens 0 0 0 0 
Do-_ PACE ee ee Oe es ee pipe me oe 10 0 0 
Citrus limonta .....-.-------- --25---3---- sn en soo 5--- 5 == 16 lane eed cee es 4 
TG sc ey a cece ea ues c (19 BS Re SSE SRE eae 2 
| 3° ioe sot alataan cv ptcaaetinrNS Peay Msi ayo es ponpy e | Sy eter ee ae 0 0 
DG ose oe eee 1 ee 0 0 
Pid oe a eke ee ee eetce eee es RE ras 0 0 
Den oce ake Sn eo ea a oe 1 5 
Do. as 3S ie ns oS ea 0 0 
Do oR Byes Seles EE ro ed 5 
Do saci coke Ll cease 0 0 
Do Spi keeunecmanes OE FS Res eS 2.0 0 
Do Zuee See SA 2 0 0 
Do Scteeloehon ase oan 5: io Pohang ea 3 
Citrus hystrix Bi SE ata papel stn APRs i x ee ec eat Se 0 0 0 0 
TOO sss ess ae ee rk eee 0 0 0 0 
DO... Bok kweohvewsbaweceensusepenaenscece 0 0 0 0 
De six Co SES Mena aa Te er ape aN eae Bivens 0 0 
Citrus aurantifolia... .------- aoe seez Fis AS 0 0 
Do ees , nate 2 laser 0 0 
Deu Sane pis eee 0 0 
ees sien eke ace hei aal since eeen 20 (9) (*) 
WO ees Seen Cee rakn en ase canae nan aenewan Ae pees ara yeas 6 
Do - iy pankasesp et crieoee 15 
p> setbeg at Stake se Ore Se ee ee eras apg er ger 2 Scars 9 
Been Kee oats Bi ~ ERE Ea es 85 
Citrus medica Ct Pree uaa : Oe paiere ees 
Do shies ; sea i ae ae Been 
Do sane OG feseice ss lisse 
D0 oie pein c scee duns cacnkenasa tee ee se pee gree oe ee yg peers SE 
Citrus maxima Deus ea ea sn aete el ees Pa aa 
j 8 eae Pig Wecaeeee rs | 6 
Do sees: Sassi 50 6 -facceacssse 
DO cise soawep ns =e ipa nk oe eeeenauel es ener eet 5 |.-----00-- 
Beis cascknonascegcuecne preva 0 O|. 0 0 
