334 MONOPHLEBUS STEBBINGI, yar. MANGIFERE. 
especially after fertilisation when they cease feeding and, leav- 
ing the upper parts of the tree, walk down the trunk to seek 
places where they can conceal themselves to lay. their eggs. 
The grease bands would thus catch and kill them at. this 
period and prevent egg-laying. When the attack is over 
the bands should be carefully scraped. and the scrapings. burnt 
to kill any eggs which may have been laid on them before the 
@ died. 
The grease bands should be composed of a mixture of tar 
and glue mixed in such proportions as to ensure a sticky band. 
A second plan for getting rid of the scale will be by the 
importation of the coccid lady-bird beetle (Coccinella _ sp.) 
which is predaceous upon the allied scale AZ. steddtngi in the 
Siwalik forests (see p. 326 of this number). This should be 
quite feasible and will be attempted at the next attack. 
Points in the life history requiring further observation. 
1. When the scale first makes its appearance on the 
mango trees. 
2, Whether there is a heavy excretion of sugary liquid in 
January and February. 
3. Whether any lady-bird beetles accompany the scale 
insect. (Their larvz would be small fast-running 
brown or black grubs 5) 
4. Does the scale make its appearance at any other time 
of the year? aa 
. The amount of injury done to the trees by this insect. 
qn 
G.I. C. P. O.—No. 3079 R. & A.—9-3-1903—1,000—J. W. DeB, 
