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they should never be allowed to reach the full grown 
state, but should be collected when small, before 
they have been able to do much damage. The eggs, 
which are laid singly, are conspicuous objects and 
should be destroyed. 
Prays citri, Mill., and Prays endocarpa, Meyr., 
( Hyponomeutidae ) . 
These are the most destructive citrus fruit pests 
in Malaya at the present time.. 
The minute caterpillars bore in the rind, rarely 
eating the fruit itself. In doing this, however, bac- 
teria, fungi and other insects, such as the beetle 
Carpophilus dimidiatus, Fb., (Nitidulidae) , and 
fruit-flies, are enabled to work havoc with the fruits. 
No satisfactory method of control has yet been 
worked out for this insect but, if the fruits are 
covered when young, they can be secured from the 
pest for table purposes. 
Crocidomera robusta, Moore, ( Pyralidae ). 
The pomelo is subject to attacks by the caterpillars 
of this moth, which lays its eggs on the fruits. The 
caterpillars bore into the fruit and make it quite 
unfit for table purposes. 
The moth is not nearly as destructive as is thought, 
considerable confusion having arisen between the 
damage caused by it and that caused by Prays 
endocarpa. 
Pomeloes are not grown on a commercial scale, 
so that bagging the fruit has the desired effect. 
Coccidae, (“Scale” Insects). 
Many “ Scale ” Insects occur, but not usually in . 
large enough numbers to cause any serious injury. 
Enquiries are frequently made concerning a black 
