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attacked when there was a cover-crop on the 
ground. Adjoining areas with no cover-crop were 
not attacked. 
Locusts. (Acridiidae) . 
Locusts are grasshoppers of certain species which, 
from various causes, suddenly increase to incredible 
numbers, swarm and migrate. Except for this 
habit, which recurs at intervals, the locust is an 
ordinary grasshopper. 
There has been one serious outbreak of locusts 
in Malaya. Locusta migratoria , L., phase migra- 
torioides , Rch. and Frm., (Syn. Pachytylus capito, 
Sauss.) first appeared near a port, and this led to the 
belief that the locust was an imported one, which is 
unlikely. Although no permanent breeding grounds 
have been found, which are characteristic of locusts, 
it must be remembered that the finding of such 
places is extremely difficult, owing to the impene- 
trable nature of the forests. It is in such localities 
that the locust exists in small numbers, awaiting 
favourable conditions before again swarming and 
migrating. 
The measures necessary for dealing with locusts 
cannot be treated here, but should any indication 
of a migratory habit of grasshoppers be observed, 
the fact should be reported immediately to the De- 
partment of Agriculture. 
Pests Attacking Stored Products. 
In controlling this type of insect, the chief difficulty 
in this country is that store-houses are rarely built 
in such a way as to make fumigation possible with 
any degree of ease. Recourse must therefore be had 
to other methods, which depend on circumstances. 
