Kentucky Agrz`culturaZ E.rp0rimcmf Station 19
ous buds on tl1e younger wood are removed; (4) the best trees
have developed from medium sized stock which were headed
‘ about two feet from the ground and all branches spurred to
about 2 inches in length.
Tomatoes. An investigation was undertaken under green-
1 house conditions to determine the influence, if any, of acid
’ and alkaline condition of the soil upon tomatoes. The study is
$ preliminary and incomplete, but it has shown (1) that tomatoes
i grown in a mixed soil of peat and sand showing acidity of 6.3
5 pH were neither benefited nor harmed by additions of lime,
’ ( as far as growth or production was concerned; (2) that sul-
1 fate of ammonia, applied to young plants, gave as favorable
- production as nitrate of soda; (23) that earliness of production V
- did not seem to be influenced by the use of acid phosphate or
t potassium sulfate in this experiment. Tomato fruits grlown
1 in soil deficient in phosphorous contained 94.73 percent mois-
e ture (water); those grown in soil deficient in potassium con-
e tained 923.93 percent moisture, and those grown in soil with
s complete fertilizer contained 94.()33 percent moisture. These
_ results indicate that the use of phosphorous or potassium does
tl not materially affect tl1e proportion of dry matter in the fruit.
if V Bluegrass Pastiue Enemies. The results of a study of two
h insects which, for several years, had injured bluegrass pastur-
g age in this region, were published as Bulletin 265. The insect
.o most abundant and destructive is the bluegrass plant bug, Miris
L6 dolobratus, a puncturing species that attacks the maturing
Q seeds in tl1e panicles. The parts of pastures in which the insect
1- hibernatcd most abundantly were spots least icloscly grazed.
Tl1e insect proves to be ve1·y closely confined to bluegrass in
lg this region both in its food and in its egg-laying. The second
YC ' insect studied, the green bug To.rop!rra granzinzmz, had disap-
9,. peared in 1926, probably a result of predatory insect enemies
ill and fungus parasites.
m Insecticide Tests. ln the experiments leading to the con-
,,1 trol of the Mexican bean beetle, the liquid sprays gave slightly
3,1 better control than the dusts. A spray made of calcium arse-
,,._ nate, ii; pound, lime DQ pound in 50 gallons of water, and a