SQI.IE V/IIYS OF I.IAGITESIUI'J DEFICIEITCY 



There are at least five reasons for the widespread magnesium deficiency 

 shovdng up in Massachusetts orchards. (1) Llany orchards have been planted on aoils 

 naturally low in magnesium, asfbr example, soils of the I.Ierrimac series. R. VJ. 

 Donaldson reports magnesium to be Lov: to Very Lovr in 50.3^o of the 2033 soil sam- 

 ples tested in the past three years; 21% showed a Medium content of magnesium 

 while only 22.T,'^ were Medium High to Very High. (2) Erosion and leaching have 

 further removed magnesium from the soil. (3) Many bearing orchards have nov; 

 reached such a stage of development that the roots have exploited the soil more 

 or less completely. (4) Little agricultural lime has been applied in orchards 

 and much of what has been applied has been high calcium and not high magnesium 

 lime. (5) Our spray and dust programs involving heavy applications of sulfur hare 

 made our orchard soils more acid. There is some evidence that magnesium is more 

 likely to be deficient in a very acid soil. 



LIST OF TOPICS IIJCLUDBD IH FRUIT MOTES DURING 1942 (Page numbers in parentheses) 



Agricultural Conservation Program - 

 Sept. (2) 



Feb. (10) 



Feb. (8), Dec. (5) 



- Feb. (6), Apr. (3), 



Apple Maggot - 

 Apple Prices - 

 Apple Products 



June (2) 

 Apple Scab - May (4) 

 Apple Tree Census - Feb. (9) 

 Apple Varieties - Jan. (7), Aug. (6) 

 Backyard Orchards - Jan. (3) 

 Beach Plums - Jan. (4), Sept. (2) 

 Bees - Feb. (9), Mar. (1), Apr. (8), 



June (5), Sept. (4) 

 Boysenberries - Jan. (9) 

 Chokecherries - Aug. (4) 

 Codling Moth - May (2) 

 Copper - liov. (G) 



Cost of Living - June (3), Dec. (6) 

 Curculio - May (7) 

 Do You Know? - Jan. (5), Feb. (3), 



Mar. (3), Apr. (6), June (7), 



July (4), Aug. (7), Sept. (5), 



Oct. (5), Nov. (2), Dec. (2) ^ 

 Food Program - Hov. (6), (8) 

 Forest Taxation - Jan. (8) 

 Fruit Prospects - July (1) 

 Grapes - Mar. (7) 

 Harvesting - Aug. (5) 

 Labor - Mar. (8), May (4), July (7) 

 Lead Arsenate - June (10), July (3), 



Nov. (5) 

 Lime Sulfur - Sept. (8) 

 Magnesium Deficiency - May (6), Aug. (1), 



Sept. (7), Oct. (3), Dec. (8) 

 Mailing Stocks - Jan. (9), Apr. (4), 



Oct. (2) 



Manure - Feb. (8), June (4) 

 Marketing - Jan. (7), Mar. (9), 



Apr. (2), (6), June (1) 

 Mulching - Feb. 7), Apr. (4) 

 Nicotine - Apr. (5) 

 Orchard Supplies - Feb. (1), Mar. 



(7), (8), Apr. (7), June (6), 



Aug. (5), Sept. (1), Oct. (1) 

 Peaches - Jan. (6), Feb. (6), 



Sept. (3) 

 Pruning - Dec. (l) 

 Rabbit Injury - Jan. (8) 

 Raspberries - Sept. (2) 

 Rats - Mar. (9) 

 Red Mite - May (l), Aug. (2) 

 Rotenone - Apr. (3) 

 Spraying Equipment - Jan. (3), 



Mar. (7), Dec. (3), (4) 

 Spray Residues - Mar. (6), Apr. fS) 

 Soil Acidity - Feb. (3), Oct. (6) 

 Soil Management - Jan. (1), Mar. (10), 



Apr. (4), (6), June (6), July (2), 



Aug. (3), Nov, (4) 

 Storage - Feb. (7), Mar. (5), 



Apr. (4), Sept. (3), Oct. (2), 



Nov. (4), Dec. (7) 

 Strawberries - Mar. (5), (7.)', May (4), 



Aug. (3), Oct. (4) 

 Sulfur - Jan. (2) 

 Thinning - June (6) 

 Transportation - Apr. 



Aug. (5), Nov. (5) 

 Twilight Meetings - Apr. 

 Vfar Bonds - Dec. (6) 

 Weather - Jan. (7), May (7) 

 Weed Killers - June (2) 



(2), June (7), 

 (1) 



