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" 60 ~. . Bulletin N0. 138. f
A V thing necessary in renovating an old orchard that has become in- »
fested is to clear it of undergrowth, and the next is to go over the _
‘ orchard in winter and prune back, being careful to remove all twigs p
_ observed to contain the eggs of the Buffalo tree-hopper. `
Elm, pear, maple, and other woody plants are made use of by
T the insect when placing its eggs.
THE 17-YEAR LOCUSTS. _
(Tibicen septendecim and T. cassimli).
Broods of this well known insect have recently made their 1
L appearance in parts of Kentucky, and where nurseries and orchards
’ were near forests some mischief has been done by puncturing twigs
_ to deposit eggs. In 1902, in Pendleton and adjacent counties, a
brood was extremely common, both the large one with the peculiar
note resembling the word "Pharaoh" and the smaller (T. ccwsinii)
with its simple chirp like that of a grasshopper.  
These cicadas appear here in, May, and continue to emerge
during the whole month. They are all gone by the first of July,  
but the twigs punctured begin to break in August, and the effect
. ‘ of the visitation is then most clearly apparent from the dead leaves.  
ln the nursery the main stem of small trees is sometimes punc- T
tured, and later splits so as to ruin the trees. The time of appear-  
T ance is suiiicient to distinguish the 1'7—year locust from the common A
jarr-ily which appears in late July and in August every year. The L
latter is a stouter insect marked with green, while the 17-year t
locust is marked with red.
The records made at the United States Department of
Agriculture, showing the distribution of the different broods,
credit Brood No. VIH to the following counties, constituting a ’
group in the eastern part of the State, with a few outlying counties:
Adair, Allen, Bath, Boyd, Bourbon, Breckinridge, Carter, Casey,
Clark, Clinton, Cumberland, Estill, Fayette, Fleming, Franklin,
Greenup, Jackson, Jefferson, Laurel, Lewis, McLean, Madison,
Mason, Metcalfe, Montgomery, Owsley, Powell, Pulaski, Rock-
castle, Russcll. Shelby. Trimble, Wayne.  
The mountain section of the State is not included, probably
y from a lack of correspondents in that region.