-7- 



Desirable Dusting Formulae are? 



Dusting Sulfur Talc 85-Fer;iiatc 10-DDT 5 



Sulfur 75-Lor.d Arsenate 25 F-armato 10-Lead Arsenate 25-Talc 65 



Sulfur y5-DDT 5 Sulfur 85-LGad Arsenate 15 



Sulfur 95-FormatQ 5 Formate 10-Talc 90 



Either sulfur or iron carbamate dusts are desirable for controlling 

 Scab, Tnc sulfur-F'^rmate dust is satisfactory for c 'ntrolling Scab 

 and Cedar Rustj the Fermate-talc dust, for Scab, Cod^^r Rust, smd fruit 

 russet. 



Miscellaneous, Benzene hexachloride, kno\vn as Gammexane, 666, Gaiatex, 

 BHC, and Ben'jriiGJt, is a promising h'jvi insecticide especially for Cur- 

 culio and Aphis control but must bo studied more thoroughly before 

 it can bo gen^^rally rocoimnonded. Compatibility v/ith lead arsenate, 

 DDT and Fermate appears satisfactory, but with sulfur caid dinitro 

 materials it is questionable, 



Phygon is highly effective against Scab but may cause leaf injury 

 and rodu'.tion in size of fruit. It must be investigated further befor* 

 it can bo r-ocommended, F'"'r limited, oxporim ;ntal use, the concentration 

 should mt exceed g- pound of Phygon to 100 gallons of v;ater, Phygon is  

 compatible vfith lime but not vith oils. 



"Let's Look at That Map Again'.' In an orchard area along 

 t'he"^lan'tfc ""Seaboard the owner of a bulldozer contracted 

 to remove a large block of auple trees, Ai'ter pushing 

 over 600 trees, he made a startling discovery. He was 

 in the wrong orchardi 



No January Fruit Notes, As a means of stretching a limited 

 supply" o'f" mimeograph paper, and in line with a College 

 policy during the past few months, a second is.;ue of 

 Fruit Notes has been omitted. From now on, however, we 

 hope to get back on a monthly basis. 



New Insecticide Gives Promise Against kites. An organic compound, 

 tetraethyl pyrophosphate (TEP)Thas been f'ound to be unusually 

 effective against certain pests Y:hich are quite unaffected by DDT. 

 In laboratory tests TEP was 10 times as toxic against aphids as 

 the usually applied nicotine compound. It may prove to be a useful 

 material in controlling red mite. Tests indicate that.it decomposes 

 promptly and therefore does not leave a residue,. 



