4 BULLETIN 723, U. S, DEPARTMENT OF AGRICULTURE. 



ture, who has published a very full statement on the subject (8). 

 During 1913 Mr. Green made a trip of inspection through the greater 

 portion of the cotton-producing area in Brazil. Special attention 

 was paid to the seed, not only in the fields but in the ginneries, and 

 no infestation was found. In 1916, however, another trip showed 

 that the pink bollworm was present over wide areas in the States 

 of Parahyba, Rio Grande del Norte, and Ceara. It seems that in 

 the years 1911, 1912, and 1913, the Government of Brazil imported 

 nine tons of Eg^'ptian cotton seed. This seed was not fumigated as 

 it was not suspected that any injurious insect was likely to be carried 

 by it. A test for germination showed 89 per cent viable. It is al- 

 together likely that a percentage of the unviable seeds were those 

 attacked by the pink bollworm. All of this seed was sent to agri- 

 cultural inspectors in various States and by them was distributed 

 further throughout the cotton-growing districts. 



There can be no doubt that the general establishment of the pink 

 bollworm in Brazil was due to the importation of the Egyptian seed, 

 and that incalculable losses to the country could have been avoided 

 if proper quarantine precautions had been taken. 



In Mexico the pink bollworm was introduced in 1911. During that 

 season two importations of Egj^ptian seed were made. One consisted 

 of 125 sacks and was planted near Monterey; the other, of 6 tons, 

 and this was planted in the vicinity of San Pedro in the Laguna. 

 From what is known of the abundance of the pink bollworm in 

 Egypt in 1911 it is probable that both shipments of seed were in- 

 fested and that both of them contributed to the present infesta- 

 tion in Mexico. It is true that, cotton culture has not been con- 

 tinued in the vicinity of Montere}^, but the crop of Egyptian cotton 

 produced there in 1911 attracted considerable attention and much 

 of the seed was shipped to the Laguna. 



The work of determining the spread of the pink bollworm in 

 Mexico was greatly facilitated by the cooperation of the Mexican 

 Government. The Minister de Fomento, Sr. Pastor Rouaix, Sr. 

 Jose Duvallon, Director de Agricultura, and Prof. Julio Requelme 

 Inda of his department, showed the greatest interest in the matter 

 as soon as the presence of the pink bollworm in Mexico was known. 

 Sr. Duvallon dispatched a special representative, Sr. Alfonso Mada- 

 riaga, to Northern Mexico, where he spent some months in making- 

 examinations in the Laguna. His findings corroborated in every 

 way the discoveries made b3^ Mr. Busck. 



Very recently specimens of the pink bollworm have been received 

 from China. They were collected by Mr. H. H. Jobson, who at the 

 present writing (May. 1918") has just returned from China. Mr. 

 Jobson's notes are as follows: 



