230 HELMINTHOSPORIUM SPP. ON CEREALS AND SUGARCANE IN INDIA 
TABLE ITI. 
Cross-anoculations on sugarcane. 
N Date ane No. Control Control REMARKS 
we aoe infected ag infected 5 ; 
—- | 
1 5--8-18 7 + | 1 i In most cases the inocula- 
ted leaves were enclosed 
2 11-8-18 u 6 1 es: in a chimney, both ends 
| of which were plugged 
3 18-8-18 18 10 1 | 58 with cotton wool so that 
| the inoculated portions 
1 13-8-19 | 20 15 | 1 ue were as if in a moist 
cham ber. 
5 29-8~-19 10 5 | 1 
Total | 62 40 a | se 64% 
Out of 62 inoculations made, 40 were successful. Maize Helminthosporium 
when inoculated on sugarcane formed small dirty straw coloured spots which 
increased in size when leaves were kept moist. Though maize Helminthos- 
porium is capable of infecting sugarcane leaves (Plate III, figs. 4 and 5), vet 
they are not identical. 
TaBLe IV. 
Cross-inoculations on rice. 
No. of 
nae No. : Control 
No. Date neal safentcd Control | aA faeted REMARKS 
: 
i 11-11-19 24 3 J 
2 25-11-19 8 2 1 | 
3 | 29-11-19 8 4 1 See 
4 | 106-20 10 3 1 
5 7-8-20 | 1] 3 ] 
Total 6] 15 re 7 24%, 
Maize Helminthosporium when inoculated on rice infects very few of the 
leaves and in these also the fungus after entering spreads very little and a spot 
is formed very rarely. Of 61 inoculations made, infection took place only in 
15, and out of these 15 very few formed spots with conidiophores and spores. 
