2 GKASSHOPPEKS AND OTHER INJUKIOUS INSECTS OF 1911 AND 1912. 



thoroughly dissolved in the water, the molasses added, stirring it in 

 thoroughly. Page 21. 



4. Cost: About 30c per acre (50 gals, per acre) for material, 

 figured at the rate of retail price of Arsenite of Soda, 22c per lb. 



5. The use of this spray calls for early and concerted action on 

 the part of farmers, and should be applied when hoppers are very 

 young (shortly after hatching) and always before wings are devel- 

 oped. See illustration. 



6. Spraying is best done early 

 in the morning. Do not spray just 

 before a rain. Do not delay spray- 

 ing on account of pressure of other 

 work ; delay might mean a loss of 

 from 25 per cent to 90 per cent of 



tne year S crop. Pm. i \ very young: grasshopper, much en- 



-, /~i ,• • ,1 1 , larped. Spray at this stage or l)efore. 



7. Co-operation is the key to 



success. Grasshoppers might enter a crop of a careful farmer from 

 land owned by a careless neighbor who had taken no action against 

 the pest. 



8. Between May 8th and 15th, look for young hoppers hatching in 

 old stubble or in weedy tracts or unused land, in pastures, hayland, 

 and along roadsides. With the above poisonous solution spray a 

 strip from two to four rods wide about the area where they are 

 hatching or over the entire field if not too large. If the infested tract 

 is very extensive, spray a strip about the edges of field from two to 

 four rods wide and several strips through the field. Or spray the 

 poison on a broad strip of planted field, bordering the infested land. 

 The solution at above strength and used as directed will not injure 

 grain or poison stock. 



Our observations show that it takes from twenty-four to forty- 

 eight hours for this poison to kill grasshoppers, but the insect is prac- 

 tically paralyzed immediately after partaking of the poisonous dose 

 and eats little or nothing thereafter. 



9. Any sprayer which is used ordinarily to distribute paris green 

 in water or any other liquid spray may be used for this work, although 

 a regular field sprayer is best. A combined field and orchard sprayer 

 may be obtained. 



10. It should be remembered, in using this spray, that co-opera- 

 tion amongst farmers of a neighborhood is necessary ; that early con- 

 certed action in spring is important : that while the above solution is 

 not dangerous to plants or stock, if used as directed, it is nevertheless 



