KV
to be injured by gurbs if patches quire 6 to 8 years and a fowas
are set on land in sod the year be- much as 12 to 14 years. Usually
ny fore, if they are cle=e to the food pears begin to bear after 5 to 7
' plants of the adults o1· if the years; peaches 3 years; plums 5 to
lbs patches are allowed to become 6 years and cherries 5 to 7 years.
ky weedy. Strawberry patches set on Temperature and Weather--
ner loud in tobacco the year before are Sub-zero temperatures often kill
ea- rarely bothered by the giubs. lt is the fruit buds of the more tender
tor usually thought that a legume crop fruits such as peaches, cherries and
be before strawberries discourages plums. Weak and non-vigorous
lbs grubs. This may be true for many trees are less resistent to cold than
118 legumes, but the writer has found healthy trees.
the lespedeza sodsin western Kentucky Frost during blossom time fre-
ips heavily infested with grubs. quently results in injury depend-
mi There is very little known about ing on the severity of the tempera-
how to control grubs once they ture andthe attending conditions.
MS start to injure plants. 'l`l1e writer Even though no frost killing
OSB has found it pays to dig up plants 0Ccu1‘S, pollination may be pre- .
Sh, dying from grub injury and kill vented during cold stormy weather, A
The the grubs before they can move on thus preventing the fruit from set-
ind to other plants in the row. lt is ting. Pollen does not germinate at
by also possible to kill the adult beetles temperatures near the freezing
UGS by spraying their food plants with point and rains and stormy weather ‘
*€l`· lead arsenate and thus reduce the 11111}* prevent the work of bees which
»bl€ following year’s crop of grubs. are the chief pollen carriers. Some-
ur- This last suggestion may be of times beating rains wash the pollen
€i1I‘ interest to some McCracken County i1“`i1I>'· .
ion growers who have spray rigs avail- Poor pollination may result also
two able. because of self-sterile or self-
unfruitful varieties and lack of V
»ast FAILURE OF FRUIT TREES good pollen varieties. A large part
fen- T0 BEAR of the pollen of most apple vari- - _
id) A· J- OLNEY· Head eties will not fertilize their own
like D€¥’“U“€¤t °f Horticulture flowers, and little or no fruit will ,
; is Observations of fruit plantings set unless pollinated by another i
the in Kentucky have established the variety. The pollen of some vari- L
th_e fact that many of these are not pro- eties including Winesap, Stayman,
i 3 dncing satisfactory crops. Often Black Twig and probably Turley   ’
lrns failure to fruit is caused by failure are ineffective. Good pollen vari- l
The to blossom; although in many cases eties include Grimes, Jonathan, i
also the failure to bear is caused by the Delicious, Golden Delicious and . `
iter tree failing to set fruit after the Rome. .
ghcr blooms have been produced. Most varieties of plums and Q » g
this Sometimes, the cause for non- sweet cherries require good pollen   =
t of bearing is obscure, however, in most varieties growing nearby to insure   -
ther cases failure is due to one of several a good set of fruit. _ ` 4 '
ring wellknown factors. Sour cherries and most peaches ,
nter Age—Different. kinds and vari- with the exception of J. H. Hale g ·
the ety of fruit vary greatly in pro- are self-fruitful. g g
rubs ductiveness and to age when bear- ln orchards that do not have     .
soil, ing begins. Some varieties of ap- satisfactory pollen varieties these   ` -
ples may bear a little 4 or 5 years may be provided by setting young     ,
apt after planting, but the majority re- pollen trees nearby or top-working E   ·· ;
2