1>A(IK 



Cos! of Orchard Fnmi^ation ^-^ 



Treatment with Wluile-oil Soap ** 



Ex perienoe with Kerosene Emulsion 45 



Kerosene Emulsion at Richview 4r» 



Experience at Carterville, Albion, and Montioello, Spring of t'.ton 47 



Experiment with Kerosene Emulsion at Barry 47 



At New Boston • 48 



Kerosene Emulsion at Quincy 4*^ 



Kerosene Emulsion, Season of H)()l-02 f><) 



Field Use of the Ijime, Salt, and Sulphur Wash '')2 



The California Wash at Summorfield •'>'i 



The California Wash at Makanda ^'4 



The California Wash at Albion.. f>'> 



The California Wash at Browns •'"••'» 



General Summary ; '^''* 



Experiments witl> Lime and Sulphur Washes for the San Jose Scale <>7 



Use of California and Orefjfon Washes in Illinois (>8 



Secondary Results of the Experiments <>5) 



General Features of the Experiments <>!* 



General Statement of Results 70 



Period and Methods of the Experiments 70 



Experimental Trees Used ^^ 



Weather of the Period 7^ 



Preparation of the Insecticides 72 



The Water Sprays to tost Effect of Rains 7;{ 



Explanation of Tables 7.'? 



Experimental Details 74 



First Lot of Trees. California Wash 74 



Lot I. Sprayed with Lime, Sulphur, and Salt, March ;5 7!i 



Second Lot of Trees. California Wash 78 



Lot II. Si)rayed with Lime, Sulphur, and Salt, March 5 78 



General Results of Experiments with Jjime, Sulphur, and Salt 81 



Third Lot of Trees. ()re^>;on Wash.. 82 



Lot III. Sprayed with Lime, Sulphur, and Blue Vitriol, March :{... 83 



Fourth Lot of Trees. Oregon Wash ^•'"> 



Lot IV. Sprayed with Lime, Sulplmr, and Blue Vitriol, March .'". ... 84 



The Tent Experiment ^7 



Effects of Rain and Water Sprays in washing off Dead Scales. 88 



Practical Conclusions ^■* 



Experiments and Observations on the Use of Crude Petroleum and Pure Kero- 

 sene for the San Jose Scale •" 



At Carterville, 111. 



'11 



At Catawba Island, Ohio •'•' 



Experiments with Summer Washes for the San Jose Scale 5»(! 



On the Principal Nursery Pests likely to be distributed in Trade 1>8 



Classification and Description of the Insect and Fungus Pests of the 



Nursery most Important to the Nursery Trade i>*.' 



Injurious to the Roots ''"' 



The Woolly Aphis •>'-^ 



Tlie Black Peach-Aphis .• ^00 



The Crown-gall ^''*' 



