NEW YORK HORTICULTURAL SOCIETY. 325 



green, Mr. Green said lie desired to empliasize the fact that all kinds of 

 fruit trees can be sprayed with Paris green water to great advantage. He 

 nsed one large spoonful to forty gallons of water; keep continually stirred, 



Mr. Wii.L-utn: I get my Paris green put up in three-ounce packages and use that much 

 to forty gallons of water. It is safer to procure in that way. 



Prof. Cook of Michigan gave an ilhistratcd talk on insecticides. S])eak- 

 ing of the codlin moth, he said only one larva is found on a single a|)ple. 

 He knew this from experiment. For a remedy he has tried London pur- 

 ple for nine years. 



It can be bought for much less, mixes more readily, and lasts longer, I would advise 

 you not to talk white arsenic. It is just the color of the soda used in the kitchen, and 

 we do not want to do anything that will foster carelessness and render us liable to 

 accident. Of London purple I would use one pound to two hundred gallons of water. 



To the question, when shall it be applied, he replied: 



Not till the blossoms fall. In the tirst place, the bees are working there, and if the 

 blossoms are only commencing to fall some of them are just fresh enough to contain 

 nectar, and there is danger of poisonmg the bees. You can not afford to do harm to the 

 bees. I think you will be safe to wait until the blossoms have fallen from your latest 

 trees. In using the insecticide I make a point to know that every apple received 

 a grain of poison, and as a result every larva was killed, and there was not a wormy 

 apple. When the egg hatches it gets a little poison and so is killed. I think you can 

 not get so little poison on the fruit that if the insect gets any it won't kill it. If you 

 XHit the solution on stronger than I have mentioned you will kill the foliage. Why it 

 does this I do not understand, but I am going to try it. I am going to jjut it on at all 

 times in the day and in all weather. Another thing, you must be thorough. If we 

 have only one pound to two hundred gallons we can throw it on with a force pump, and 

 liberally. Would I put it on a second time? I answer, it you want the best results, 

 yes. 



How will you put it on ? 



By all means get the Field force pump, with the Moody attachment, called the 

 Perfection spraying nozzle. Go on all four sides of the tree. The dilution makes it 

 possible for us to be liberal, and with a pump you can go on every side of the tree. 

 Another thing, it must be done when there is no wind. There is the Gould pump and 

 the Nixon. I have no interest in any of them, so can mention them all. When you put 

 it on with a force pump it goes on with a tremendous dash, and that is the way you 

 want to apply all insecticides, always with a dash. It flies all over and if you will take 

 a little hand lens you will see that every point has received a drop of poison. 



The Curculio: They prefer the plum, but if there are no plums they will go to the 

 apple. Plant plum trees near your apples, then the curculio will be drawn to the 

 plums and you can fight the apples to greater advantage. 



How will you fight curculio on the plums? 



First, use the remedy just given. I tried it once and did not get favorable results, and 

 so condemned it. But confession is good for the soul they say, and so I confess. The 

 past year we put it on three times, and the trees were as nice and fair as could be. The 

 curculio eats the leaves and the plums. You spray the trees and it gets the material 

 from the leaves and plums, and dies. The rain usually washes the poison off the leaves 

 and the dose must be repeated. The plum attracts the curculio. Spray your plum 

 trees three or four times, you free your apples and have beautiful fruit on both. Another 

 remedy is to take fifty pounds of land plaster and one pound of crude carbolic acid 

 (indefinite term), and 'thoroughly mix. Use a step ladder and go up on the tree to 

 apply. J. M. Stearns, a careful fruitgrower in Michigan, has tried this for several 

 years. He takes common lime, but I prefer the plaster. 



A Voice — How is it applied? 



Prof. Cook— The jarring does it, and pays, too. 



Aphis: This insect increases rapidly. The male and female appear in the fall; they 

 mate, and the eggs hatch all females and alive. They hatch in such large quantities 

 that Dr. Lintner estimated that he got enough to reach to the furtherest fixed star in a 



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