The nymphs of 7. postica puncture the roots of the canes 
and cause them to die, thus depriving the plant of its means of 
nourishment, and the Caterpillars of C. Zcus tunnel in the root 
stocks and stalks of the growing canes. Trinidad cane fields suffer 
a great deal from the attacks of 7. postica, and C. licus, although 
bad enough in Trinidad, appears to be worse in British Guiana. 
Both Insects are extremely difficult to deal with on account of 
their continuous generations and overlapping of broods only occa- 
sionally interrupted by extremes of weather. In connection with 
the control work of these Insects some good results are anticipated 
by the use of a parasitical fungus (1) on the Zomaspis postica. 
Spores of this fungus were scattered broadcast over a small field 
and the proportion of dead Insects was so encouraging that arran- 
gements have been made to grow the fungus on a large scale. My 
recent discovery of the eggs and methods of oviposition will also 
tend to make the control of this pest more easy. As far as C. licus is 
concerned, the only method that has been found of use is catching the 
adults by gangs of boys. According to Mr. QUELCH 236,357 Moths 
were caught in six months in 1904-1905 on one estate in Demerara, 
to-day on the same estate the catch for seven months is 52,278. In 
Trinidad on the same estate 91,684 were caught in 1909 and 36,914 
in 1910 for the same periods of six months. 
The guard against the introduction of any Insect or fungoid 
pests from abroad there is an Ordinance which requires the 
inspection of all plants or their parts before they are allowed to be 
brought into the island, this Ordinance is now being amended and 
in addition to inspection of all plants, seeds, etc., before landing it 
will also provide for the inspection of all nurseries. There are other 
Ordinances which are made to ensure the destruction of injurious 
Insects on plantations, so for instance the Locust Ordinance which 
compels a proprietor to destroy all Locusts on his own property. 
The reason for this Ordinance is that sometimes, luckily up to 
now at remote periods, swarms of migratory Locusts invade the 
(1) With regard to the name of this fungus Mr. J, B. RORER, the Mycologist 
of the Board of Agriculture, writes as follows : « Material sent by COLLENS to 
the U. S. Dept. of Agriculture was determined as Oospora destructor and Peni- 
cillium anisotlie, while specimens, which were sent to Kew in 1908, were 
examined by MAssEE, who diagnosed the fungus as a new species to which he 
gave the name Septocylindrium suspectum ». 
