18 Farmers’ Bulletin 1257. 
The eggs produced by this species are yellow. From the eggs 
come crawlers, bright yellow in color and oval in outline. They be- 
gin to form their scales when less than a day old. By the second day 
Fic. 9.—The Florida red scale: Adult scales on mango 
fruit. 
they cease to crawl 
and by the third day 
the scale has become 
nearly circular. The 
first molt occurs at 
the age of about 3 
weeks. The male of 
this species is a very 
delicate two-winged 
insect which appears 
at a certain period 
of development of 
the female scale; 
its life is very brief 
and after mating it 
soon dies. Egg lay- 
ing begins when the 
females are about 10 
weeks old and con- 
tinues for two weeks. 
CONTROL. 
The same oil emul- 
sions which are used 
against the soft scale 
insects of the mango 
may be used against 
this scale also. On 
account of the thick 
and heavy scale, 
however, which fits 
the leaf or fruit very closely, the mature females and the eggs under 
the scales are not easily killed. To control effectively a heavy infesta- 
tion of this scale, therefore, two or three sprayings may be necessary. 
The second should be applied from 3 to 4 weeks after the first. This 
will give the females that were not killed by the first spraying time 
to mature and die and their last eggs to hatch, but will not allow 
sufficient time for a new generation to mature. 
