POTASH AS INSECTICIDE AND FUNGICIDE* ,.77 



later in the season. I would recommend the application being jnade 

 before or immediately after a rain, early in July." 

 Corn Root Web-Worm, by John B. Smith, Entomologist. Four- 

 teenth Annual Report, page 478. 



"Direct application of insecticides is not feasible as against these 

 insects; but a very great advantage is everywhere found in favor of 

 those using the mineral fertilizers. ... I would very strongly 

 advise the application of all the necessary potash in the form of kainit, 

 put on as a top-dressing after the field is prepared for planting, and I 

 would expect to find good results from this practice. Fall plowing 

 and kainit as a top-dressing in spring, will, I feel convinced, destroy by 

 all odds the greatest proportion of the web-worms that may infest the 

 sod, and would also destroy or lessen many other pests which trouble 

 corn during the early part of its life." 



NORTH CAROLINA, 1882. 



By C. W. Dabney, Director. Fifth Annual Report. Cotton Rust 

 and blight. 



"So far as our experiments go, kainit appears to be be the most 

 effective agent which has ever been used against those destructive and 

 mysterious diseases of cotton which we call rust and blight." 



*'It is now the quite general opinion that kainit will prevent the 

 rust in cotton in a great majority of instances; at least, the illustrations 

 of this are very numerous, and there is hardly a dissenting voice. . . 

 One farmer in an eastern county, where they know all about both com- 

 plaints mentioned, says: 'Kainit is to rust what quinine is to chills— a 



specific* " 



TEXAS, 1889. 



Cotton Root Rot, by L. H. Pammel. Second Annual Report. 



"Of the fertilizers, kainit has proved most beneficial, 14 plants re- 

 maining alive on September 6th. Many correspondents in other 

 cotton States mention kainit as valuable in checking the disease." 



OREGON, 1892. 



By L. F. Washburn, Entom. Bulletin No. 18, March, 1892. 



"Potash salts are rapidly coming into favor, not only as fertilizers, 

 but also for their insecticidal qualities." 



