210 Table of Contents 



FAGB. 



what cost, 339. The final result, 340. The fearful losses in other 

 States inflicted by the locust, 340 . Its complete destruction in Min- 

 nesota, a triumph for economic entomology, 340 . The Work of the 

 Entomological Division of the U. S. Dept. of Agriculture, 340. 

 Introduction from Australia of the natural enemies of the Icerya 

 scale insect, 340. How the Icerya Purchasi was brought to Califor- 

 nia, 340. Its subsequent increase, 340. Its destructiveness to 

 orange trees, 340 . Orange culture in the State apparently doomed, 



340 . Proposition to import its parasites and other enemies, 341 . 

 Appropriation made from the general government for the purpose, 



341 . Agents sent to Australia for their collection, 341 . The num- 

 ber obtained and forwarded to California for propagation and 

 distribution, 341 . Their progeny now number many millions, 341 . 

 The wonderful success attending their distribution in the orange 

 orchards, 341 . The pernicious Icerya scale seems doomed to a 

 speedy extermination, 341 . Cultivation of Insect Diseases, 341 . 

 Distribution of insects attacked with contagious diseases, 341. 

 The chinch-bug utilized for spreading a fungus attack, 341. The 

 experiment a pronounced success, 342. Economic entomology 

 prepared to aid largely in the promotion of the agricultural 

 industry, 342. 



Late Experiences with Insects Injurious to the Orchard and 



Garden 342 



The rapid progress being made in economic entomology. 



342. The impetus received from the Agricultural Experiment 

 Stations, 342. The new ^'Association of Economic Entomolo- 

 gists,'" 342. Experiences in spraying operations, 343. The 

 necessity in fruit culture, of arsenical spraying, 343 . What experi- 

 ments have taught in the past year, 343. The dilution of the 

 arsenite to be used, 344. Susceptibility of different fruit-trees, 344. 

 Beneficial results from spraying with cold water,344. Mr. Howard's 

 account of his method and success, 344. Insects that may be 

 killed by this means, 344. Advantages from combining fungi- 

 cides with insecticides, 345. Formula for the Bordeaux mixture, 

 345. Carbolized plaster preventive of curculio attack, 346. Study 

 of the rose-bug, 347. What has been learned of its breed- 

 ing grounds, 346. Detection of a Coleophora operating in young 

 pears, 347. How it affects the fruit, 347. Is the cause of many of 

 the scars and deformations of apples and pears, 347. The pear- 

 blight beetle Xyleborus dispar, 348. Its ravages in a Niagara 



