It is otherwise on
underground species, where the soil will be penetrated by the salts
and where the moisture evaporates but slowly, and the salt has a
longer and better chance to act. The best method of application would
be a broadcasting in fertilizing quantity before or during a rain, so
as to carry the material into the soil at once. In cornfields infested
with grubs or wire worms, the application should be made before
planting. Where it is to be used to reach root lice, it should be used
when the injury is beginning. When strawberry beds are infested by the
white grub, the application should be made when cultivating or before
setting out.
The potash salts have a high value as fertilizers, and any application
made will act as a stimulant as well as insecticide, thus enabling the
plants to overcome the insect injury as well as destroying the insect.
In speaking on this subject in Salem county, I learned from farmers
present that those using potash were not troubled with the corn root
louse to any extent, and also that young peach trees have been
successfully grown in old lice-infested orchards, where previously all
died, by first treating the soil with kainit of potash.
Pages:
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135