25 
is uncertain whether the applications of water produced any effect. On 
September 21, at about 11.30 a. m, (temperature at noon, 81° F.), applied 
ice water to cabbage worms. Worms were decidedly disturbed when 
it came in contact with them, but I could get no positive evidence of 
any of them dying from its effects. On the plants thus treated the 
worms soon after began dying, as in the case of the first application of 
water; but as they also died on plants not treated, it is unsafe to con- 
clude that this application induced the disease. Ou these plants 
worms died off till scarcely a living worm could be found. October G, 
on farm of C. F. Mount, applied cold water to cabbage worms (day 
cool; at noon, 51^ F.) — water cold enough to make the worms curl uj) 
and drop when it came in contact with them. Examined October 7, 
and could find none killed or dying from effect of this application. 
Carbolic Acid in Water. — September 21, applied carbolic acid in water, 
very dilute (1 dram carbolic acid to 1 gallon water). An hour or two 
later no effect could be noted, nor on subsequent days. September 26, 
applied carbolic acid and water to plant-lice on squash and on cabbage, 
and to Avorms on cabbage and i^arsnips. Up to October 1 no effect was 
to be noted from this application. On October 6, on farm of C. F. 
Mount, ai)plied carbolic acid and water (one-half ounce to gallon of 
water), sprinkling eighteen plants. On October 7,ou plants thus treated 
a number of dead worms were found, but a considerable number had 
escaped. Professor Mount applied carbolic acid, about one-half ounce 
to one gallon of water, for the first brood of worms, and his cabbages 
were not injured till late in fall. He does not know that any were 
killed, but thinks it i^revented injury. 
Bran. — October 0, api^lied bran to cabbage i)lants on which worms 
were quite plenty. October 7, found the worms as numerous and 
apparently as healthy as before. Perhaps they avoid places where bran 
is thick. 
iSalt Solution, — September 21, this solution was applied to cabbages, 
on which were numerous worms and Ai)hides. Worms neither killed 
nor driven away. Aphides unaffected, except where they were washed 
oft'. The plants were watched until the 25th, and no result noted. The 
solution was also applied to Aphides on weeds, with no effect. Was also 
ai)plied as a warm solution to Aphides on weeds, and some branches 
thickly covered with the insects were dipped into the solution, without 
effect on the Ax)hides that held to the plant. Some were washed off' or 
crushed, but the colonies a few hours later and on following days were 
as thickly populated and as healthy as ever. 
Saltpeter Solution. — September 21, applied saltpeter in solution to cab- 
bages on which worms and Aphides were abundant. Neither seemed 
affected by the application. Up to September 25 there were no signs 
of injury. October G, applied solution of saltpeter to eighteen cabbages 
on which w^orms were tolerably plenty. October 7, no eff'ect to be seen ; 
worms plenty and healthy. 
