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Copper Fungicides! Until recently, the 1943 schedule indicated 

 80,000,000 lbs, of copper sulfate for agriculture, the same anount allocated 

 for that purpose in 1942. The Office of Food Production Administration re- 

 cently announced that this figure would likely be increased to 100,000,000 

 pounds, in view of the increased acreage of potatoes and vegetables through- 

 out the country. That office estimates that 75,000,000 pounds will bo needed 



to protect potatoes, tomatoes and fruits. It also cautions that " 



although the supply of copper compounds will be the largest in history, 

 every effort must be made to conserve supplies." 



Rotencne; The nation's supply is drastically limited and strictly 

 allocated, "he country used in 1941 about 8,500^000 pounds of roots, and in 

 1942 about 6,500,000 pounds. The Food Production Administration estimates 



that "this year close to 3,000,000 pounds will be available to meet 



the requirements of the crops and uses as set forth in amended Conservation 

 Order K-'.".o3." This limitation ordor restricts the use of rotenone on crops 

 to per.f fcr weevil and aphids; to beans for the Mexican bean beetle; to 

 sweot corn fcr the European corn borirT and to cole crops other than cabbage 

 X^EKirV iSj"to broccoli, cauliflower, brussols 3p'rc'ut's~kaTe, etc.) for cater- 

 pillars and aphids J Rotenone dusts manufactured in 1943 may contain not 

 more than 0^5 per cent rotenone, and they may not contain any pyretiirum, 

 Derris and Cube powders may not contain more than 4 per cent rotenone. Re- 

 garding the dilutions for Derris and Cube preparations in spray form, the 

 amended Conservation Order 1.1-133 "permits the use of 4 per cent rotenone 

 spray powder in accordance v:ith common practice," 



Pyreth rum; Although supplies are substantial, their use in agricul- 

 ture is dra3tic"ally limited because of military needs. A limitation order 

 novj- in preparation, it is reported, permits the use of pyrethrum on all Cole 

 crops (cabbage family); on vegetables in the homo, farm and community gardens; 

 on beet-seed crops; on corn, beans and potatoes; and on grapes and cranberries, 



Cryo lite ; Supplies for 1943 are much greater than ever before — 

 15,000,000 pouiids as coiapared with 6,000,000 pounds in 1942, Cryolite nay 

 be used in place of arsenicals on shade trees and« ornamental s , and as a 

 possible substitute for lead arsenate on apples and pears. It is also being 

 recoinraended for the control of chewing insscts on various vegetable crops. 



Nicotin e S ulfate ; Provision by U.S,D.A. for the production in 

 1941-43 of about Is800j000 pounds through a tobacco diversion program, in 

 addition to the quantity ordinarily obtained f rom tobacco wastes, insures 

 an ample supply for insecticidal purposes, A production of about 3,000,000 

 pounds is estimated for 1943. 



Calciu m Case inat e; Domestic production is now low because of milk 

 problems. Tne' situation,"^nowever, is expected to improve with the advance 

 of the season. 



These are Adequate ; Cyanides, Fish Oils, Hormone Sprays, Spray 

 Oils, Paradichlorobonzene, Borax, Spreaders and Stickers, Zinc Oxide, and 

 Zinc Sulfate. 



—0. C, Boyd and A. I. Bourne 



