I lO 
FLORIDA STATE HORTICULTURAL SOCIETY. 
kept wrapped with burlap bands, many 
caterpillars will retreat beneath these for 
hiding and the next morning they can be 
^ collected and crushed or thrown into a 
pail containing kerosense and water. If 
a sticky band of some kind, such a ‘‘tree 
tangle foot,” made by the O. and W. 
Thum Co. Grand Rapids, Michigan, be 
put around the trunk below the band to 
prevent any of the worms passing to the 
ground, it would seem possible to catch 
nearly all of them in a very few nights. 
Thus far, we have heard of no complaint 
that “tree tangle foot” injures the tree. 
In late March and early April, the eggs 
of the fall webworm are laid on the leaves 
in clusters of 400 to 500. In a week or 
ten days, these eggs hatch into very hairy, 
large-headed caterpillars, which always 
live in webs that are enlarged according 
to need, where spraying with arsenicals 
is regularly practiced they are not apt to 
become numerous, but where no spraying 
is done, the young nests should be pruned 
out and burned; or a torch of fat pine, 
attached to a pole, may be held beneath 
the nest until the worms are destroyed. 
The eggs of the Pecan tree borer, Sesia 
scitula, are probably laid in April and 
early May. Since the young borers usu¬ 
ally enter the sapwood through some 
wound in the bark, such as a graft union, 
all such scars should be well covered at 
this time with grafting wax with which 
white arsenic or Paris green has been 
mixed. Coat over the wax protection 
with whale oil soap which has been dilut¬ 
ed with enough water to give it the con¬ 
sistency of thick paint. Pour into this 
soap paint enough crude carbolic acid 
to give it a strong odor, and apply with 
a brush at the beginning of a bright, 
sunny day. Before night a tough, sticky 
film should form which is not readilv dis- 
solved by rain. Any wounds inflicted 
during the course of cultivation should 
be at once covered with some such mix¬ 
ture as this. 
» 
MAY. 
All of the species, hatching in April, 
will extend their damage over into May, 
spraying with arsenicals may be continu¬ 
ed against caseworms and caterpillars if 
the previous treatments were insufflcient. 
Many of the measures already suggested 
for April work against other insects will 
need to be continued into May. The 
moths of the caseworms, bud worms, etc., 
begin to appear in numbers this month 
and may be started up from their resting 
places on the leaves, on the trunks, in the 
mulch at the bases of the trees, etc. 
The different species of heartwood 
and bark borers are apt to commence egg- 
laying this month, hence it will be wise 
to keep the trunks and larger limbs cov¬ 
ered with white-wash which may be ap¬ 
plied with a spray pump. ' Some port- 
land cement added to the whitewash will 
doubtless add to its efficiency, since our 
object is to fill the interstices of the bark 
and make a covering over the whole 
trunk which the young borers cannot 
penetrate when they emierge from the egg. 
Possibly a further addition of one pound 
of Paris green or white arsenic to every 
fifty gallons of the white-wash would be 
good. t 
During the first half of May, the eggs 
for the walnut caterpillar are laid on the 
tender surfaces of the leaves, usually 
those of the lower branches. These are 
found in clusters of several hundred and 
before hatching become of a glistening 
white color. The young caterpillars feed 
gregariously and when first observed, the 
few leaves on which they are found may 
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