1 1 6 Second Report on Economic Zoology. 
found upon the cotton plant until late in December. It is found 
most abundantly in the early winter hidden between the involucre 
and the boll, and later in the dry and open bolls. When the plants 
are cut, or when the bolls rot and decay, the Weevils seek shelter 
amongst rubbish on the surface of the ground, and amongst weeds, 
etc., and remain there until the warm days of spring, when they fly 
to such volunteer plants as may be up ; upon these they feed and lay 
their eggs upon the early squares. They then attack the young- 
cotton crop, and by their punctures, either for feeding or egg-laying, 
cause a wholesale shedding of the young squares. The life-cycle 
takes, it seems, four weeks. When the bolls form, the Weevils also 
attack them and oviposit in them, and the larvae live in the interior 
just as they do in the “ squares/’ but the bolls do not drop. There 
is a constant succession of generations from spring until frost sets in. 
A single larva usually occurs in a " square ” ; as many as twelve may 
occur in a “ boll.” The punctures made by the Weevil are compara- 
tively characteristic, and where a boll is discoloured and has begun 
to crack at the tip the larva or pupa can be seen. Later the Weevils 
can be found between the involucre and the boll ; when no Weevils 
are present, the yellow granular excrement which collects at the base 
of the boll is a good indication of their presence. 
Remedies. 
(1) Trapping overwintered beetles by means of a few early 
planted rows of cotton plants, a row or two across the middle of every 
twenty acres. 
(2) Destruction of volunteer plants in corn-fields or abandoned 
fields. 
(3) Picking fallen squares as fast as possible, from the time the 
squares are formed in the plant. 
(4) Cutting and burning the cotton stalks as early in the fall as 
practicable, and, if possible, ploughing the fields at the same time. 
(5) Trapping the last Weevils in the field by means of a few 
plants left standing. 
(6) Spraying is effectual if the nozzles of the spraying-machines 
are distributed vertically, not, as usual, horizontally. 
The spray recommended is (No. 1) for trap rows : — Two gallons 
cane molasses ; 2 ozs. arsenic (90 per cent.) boiled in one gallon of 
water until dissolved ; 4 ozs. arsenate of lead dissolved in a gallon 
of water ; 46 gallons water. 
(No. 2) Main crop or midsummer formula to be used as soon as 
