30 The Bulletin. 



Remedies. — Large flocks of turkeys or guineas, if allowed to roam 

 the fields, will materially reduce the annual crop of Horn Worms. 

 Many farmers tell us that they rely upon nothing else to keep their 

 tobacco fields free from Horn Worms except to occasionally kill by 

 hand worms which are noticed when passing through the field. 



Hand picking or worming is still the favorite method in most sec- 

 tions, and while it is tedious, it is usually done in connection with 

 cultivation, suckering or topping, and for that reason is not so very 

 expensive. During light worm years, it is certainly the cheapest and 

 most effective method, but during heavy worm years spraying with 

 either of the arsenates would certainly be more economical and less 

 troublesome. 



Paris green may be used either in a liquid form or in dry powder. 

 In the liquid form it may be used according to the following formula : 



4 ounces Paris green. 

 8 ounces stone lime. 

 40 gallons water. 



In the dry form it may be used in proportion of one part of the 

 green to from 20 to 30 parts of any dry powdered substance, such as 

 air-slacked lime or cheap flour. If used in the dry form, Paris green 

 should be applied early in the morning just before the dew is off, or 

 directly after a rain. 



Arsenate of lead may be used in the liquid form at the rate of 3 

 pounds to 50 gallons. If used only against horn worms, this strength 

 is entirely effective ; but when spraying against Flea Bugs, better re- 

 sults can be had by using 4 pounds to 50 gallons — and this strength 

 is entirely effective against Horn Worms also. 



Usually, tobacco will not require more than three sprayings each 

 year, but the number of times one sprays tobacco will depend largely 

 upon the weather and upon the number of worms present. Evidently 

 one would give more sprayings in a season when worms are abundant 

 than when worms are scarce. It is also evident that more sprayings 

 will be required during rainy seasons than seasons which are dry. 

 Perhaps the safest indication of the time to spray is for the farmer 

 to watch his tobacco, noting the appearance of the worms, and to 

 spray immediately thereafter. Farmers should attempt to kill the 

 worms while they are quite small and before they have had a chance 

 to do very much damage. 



