22 BULLETIN NO. 4, DIVISION OF ENTOMOLOGY. 



tively easy to reach the larva, and nothing acts more rapidly and cer- 

 tainly than pyre thrum. If Paris green be used it should be used in 

 solution and applied with a pump or syringe with sprinkler attachment ; 

 the " aquapult" is excellent for that purpose, and the "Whitman" an- 

 swers every demand. Two or even three applications may be necessary 

 to follow up the constantly hatching worms, but the result will repay 

 for the labor expended. Should, by some combination of misfortunes, all 

 these methods have proved vain, and the insect be still in force, I would 

 recommend repeated heavy doses of the kerosene mixture (1 to 10), 

 which will destroy them, though it may somewhat damage the crop ; 

 should, after all, moths appear in any number it would be good policy, 

 after picking, and a few days before putting on the water, to apply 

 kerosene to the vines for the purpose of destroying the eggs. 



It may be objected that all this requires a great deal of labor and con- 

 siderable expense ; true as to the former, for it requires constant vigi- 

 lance and the prompt application of the remedies from the time the water 

 is first drawn to the time when it is again put on, yet if the work is 

 carefully and conscientiously done early in the season, little indeed will 

 remain to be done after the first brood has passed away, because it is 

 utterly impossible that many can survive so vigorous a campaign as that 

 I have mapped out; and as to expense, a dollar an acre will pay for the 

 kerosene mixture. Paris green costs but a trifle, and but a very small 

 quantity is required, while pyrethrum costs 25 to 30 cents per pound at 

 wholesale, and can be mixed with two and a half or three times its bulk 

 of cheap rye flour. Nor will it be necessary to carry on so vigorous a 

 campaign for many years, as the insects will become so scarce that it 

 will require only a very small expenditure of time and money to keep 

 them in thorough subjection, while the increased crops will repay all 

 labor or expense incurred. 



I have given no place to tobacco or hellebore in the above campaign, 

 because they are more expensive and, in my opinion, less effective than 

 the preparations above recommended. 



One more method I find in my notes as having been successfully tried, 

 easy and simple enough in appearance, but which 1 hesitate to recom- 

 mend, because I did not myself see it used, i. e., sinrply with a kitchen 

 broom to sweep off the tops of the vines. It is gravely asserted that 

 this has been done, and a bog thereby cleared of larva? ; that there were 

 no larva? on the bog I can certify, because I saw it. . Whether there 

 ever were any, or whether the sweeping destroyed them, I will not ven- 

 ture to say ; I leave it to be tried by others. 



TEEAS OXYCOCCANA* Pack. 



This insect is not found at all in Massachusetts, so far as I have been 

 able to ascertain, but is abundant everywhere in New Jersey. The 

 species is rather interesting and anomalous in that it has two very 

 distinct forms — a gray winter form and a yellow summer form. This 



* Tortrix vacciniivorana Pack, j T. malivorana Le B. ; T. Cinderella Riley. 



