1884.] EEPOET OF THE POMOLOGIST. 317 



suitable in moderate quantities, but not too much at once. An oc- 

 casional dressing of lime is excellent. For ammonia or nitrogen, 

 we would advise 150 lbs. of unadulterated Peruvian guano, or 100 

 lbs. of sulphate of ammonia. 



A good grape manure would be, per acre, potash sulphate, 150 

 lbs.; keiserite, 25 lbs.; dissolved bone-black, 250 lbs.; sulphate of 

 ammonia, 100 lbs. If land had been previously dressed, use only- 

 half. If these are mixed, the mixing should be very thorough. 



Where, by experiment, the land is known to want more or less 

 of any of these ingredients, act accordingly. 



INSECTS 



Our most damaging insects are the canker worm, apple maggot, 

 common apple worm, currant worm, cranberry worm, the slug of 

 the pear, cherry, and quince, curculio, rose-bug, and the aphides of 

 different families. 



Many of these insects can be destroyed by Paris Green or London 

 Purjde^ used in the following manner: Mix at the rate of 3 to 6 

 ounces to a 40-gallon cask of water, and spray the trees or plants 

 affected. 



An application even so weak is said, when done at the right time 

 (soon after the fruit is set), to be thoroughly effective. 



S. D. "Willard of Geneva, N. Y., last spring, with 3 ounces to 40 

 gallons of water, in one application was wholly successful, and had 

 a perfect crop of apples. For the currant worm and gooseberries, 

 white hellebore, one tablespoonful to a pail of water, is better; but 

 on the strawberry or raspberry and blackberry these poisons should 

 not be used at all, and for the apple, pear, quince, and plum, only 

 as above. 



Whitman's fountain pump is probably one of the best implements 

 for its application. 



The application should not be made where the drippings will 

 come upon cabbage or early fruit, or upon grass or corn after they 

 have sent up the flower-stalk and the ligules of the leaves are 

 formed. With discreet use these insecticides have in numerous 

 instances proved very effectual and entirely safe. 



