﻿STTJDIES OF THE PINK BOLLiWOEM IN MEXICO 3 



reappeared, since 1917. In 1922 there was no recurrence in the 

 large Trinity Bay area, where all or parts of seven counties were found 

 infested in 1917. 



In extreme western Texas and New Mexico, conditions have pre- 

 vented any attempt toward eradication. The infestation is being 

 controlled, however, by quarantines, the disinfection of all cotton-^ 

 seed, and other means, so that it is still at a low ebb and the danger 

 of spread from this area to other parts of the country has been mini- 

 mized. 



DISTRIBUTION IN MEXICO 



A new infestation has been found in Mexico, at Monclova in the 

 State of Coahuila. The previously known infestations in Mexico 

 were the entire Laguna district, Santa Kosalia, State of Chihuahua, 



Fig. 2.— Distant view of cotton plantation in the Laguna district, showing flooded fields. 



San Carolos, approximately 40 miles west of Eagle Pass, Tex., 

 Allende and Santa Monica in the State of Coahuila, about 40 miles 

 from the nearest point on the Rio Grande, and several points in the 

 E,io Grande Valley opposite Presidio County, Tex., and El Paso 

 County, Tex. 



The Mexican records to which reference has been made deal only 

 with infestations in growing cotton. The insect is constantly being 

 brought to the border towns in Mexico in cottonseed scattered in 

 freight cars, and living specimens are frequently found under such 

 conditions by the inspectors of the Federal Horticultural Board. 



HABITS 



POSITION OF EGGS ON THE PLANT 



According to observations made by Loftin ^ on plants growing in 

 the field in the Laguna, 51.7 per cent of the eggs of the pink bollworm 

 are deposited on the green bolls, the remainder on other parts of the 



» U. O, Loftin, K. B. McKinney, and W. K. Hanson. Op. dt. 



