100 TRANSACTIONS OF THE AMERICAN INSTITUTK. 



Mr. Garvey. — I have tried a great many remedies, and have 

 never found anything so good as careful watering, and killing the 

 bugs. 



BARK LICE. 



Andrew S. Fuller. — If a tree is properly cultivated, it will grow 

 so vigorously that it outgrows all bad effects from attacks of plant 

 lice. 



, WATERMELONS. 



Mr. Carpenter. — I am very successful in growing watermelons. 

 I dig a hole three feet wide and three feet deep or more, and fill 

 it with cowyard manure, early in the season — say 1st of May, and 

 cover this with light soil, six or eight inches deep, before plant- 

 ing the seeds. For muskmelons I manure with well decomposed 

 manure, sown broadcast and worked into the soil. I would also 

 work in a little of this fine manure in the top of the watermelon 

 hills. 



BUGS. 



Mr. Fuller. — I have tried all sorts of remedies, and all failed. 

 Sometimes a decoction of tansy has the effect. Whale oil soap 

 has been highly recommended. I have tried that most thoroughly, 

 but without effect. 



INSECT DESTROYERS. 



The Chairman stated that he had sent to Europe for a supply 

 of the ichneumon fly, which he hopes will prey upon the wheat 

 midge, and eventually drive that pest from the country. 



Mr. Fuller remarked that the only chance to get rid of the cur- 

 culio will be by some insect that will destroy the other. 



AMERICAN GUANO. 



A discussion arose upon the value of this kind of guano, but no 

 satisfactory results were elicited. The Chairman said that he 

 would not recommend any one to use Peruvian guano except in a 

 liquid form. If it is used dry, and a dry time follows, the guano 

 will do more harm than good. The value of liquid manure in 

 England has been fully proved. I would make the liquefaction 

 of guano very weak. So I would any other substance. It cannot 

 be in too weak a solution. 



Mr. Carpenter. — I have found Peruvian guano, 250 pounds per 

 acre, sown broadcast, a very valuable fertilizer for corn. It has- 

 tens the ripening, as well as gives a better yield of grain. Upon 



