REPORT OF EXPERIMENTS AT LA FAYETTE, 
INDIANA. 
By F. M. Webster. 
I. — Imported Cabbage Worm. {Rieris rapcc Sell.) 
Experiment 1.— ICE WATER. 
(August 4, 1883.) 
Temperatureof atmosphere about plants, 99° F. Temperature of water, 
40° F. Drenched two cabbage plants, now well headed and seriously 
infested. 
Result . — None perceptible. 
Experiment 2. — ICE WATER. 
Temperature of atmosphere, 101° F. Temperature of water, 3S° F. 
Drenched two plants. 
Result . — None are injured, and only seem to have been displaced. 
Experiment 3. — ICE WATER. 
^August 4, 1885. — Temperature of atmosphere, 9S° F. Temperature of 
water, 30° F. Drenched plants as before. 
Result . — A number were washed off, but none died from the effects of 
their cold bath. 
Experiment 4.— ICE WATER. 
Temperature of atmosphere, 98° F. Temperature of water, 31° F. 
Plant seriously infested, larva) from finch long to full grown. Drenched 
at 1.45 p. m., September 11, 1885, by pouring one quart water on head 
of plant, thoroughly wetting all larvae visible. 
Result . — At 5 p. m. all worms have returned to the leaves and are 
actively feeding. 
Experiment 5.— ICE WATER. 
Temperature of atmosphere, 96° F. Temperature of water, 31° F. 
September 19, 12.45 p. m., poured water from pitcher on two plants. 
Result . — On one plant, worms, even the smallest, finch long, were 
uninjured; on the other two small worms were found dead soon after. 
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