LOUISIANA CIRCULAR No. 5. 



.owed the cultural measures advocated by the Crop Pest Commis- 

 sion and the Bureau of Entomology have made approximately 90 

 per cent, more cotton per acre than those who adhered to the use 

 of big-boll, late-maturing varieties and to indifferent and insuffi- 

 cient cultivation. 



I. THE QUARANTINE MAINTAINED BY THE CROP PEST 

 COMMISSION. 



By virtue of the provisions of Act No. 6 of the Extra Session 

 of the Louisiana Legislature of 1903, the Crop Pest Commission' 

 is vested with authority to make and enforce quarantine regula- 

 tions governing the movement of any material likely to dissem- 

 inate the boll weevil or other seriously injurious insect. 



The quarantine at present maintained by the Commission,. 

 in connection with the boll weevil campaign, prohibits the move- 

 ment of cotton seed, seed-cotton, cotton-seed hulls, cotton-seed 

 sacks (used) and seed-cotton sacks (used) from the infested 

 territory of Texas and Louisiana to any point in the non-infested 

 sections of Louisiana. 



The materials mentioned are those which experience has; 

 shown to be such as are most likely to contain living boll weevils, 

 and the shipment of which to uninfested sections might theref ore- 

 result in new infestations many miles ahead of the gradually- 

 advancing line of weevil-infestation. Of the materials named, 

 only one, cotton seed hulls, is ever permitted shipped into the- 

 uninfested territory under any circumstances. The Commission 

 has perfected a method by which cotton seed oil mills can so 

 arrange their machinery as to handle the hulls after they leave- 

 the huller in a manner that will effectually prevent the dissem- 

 ination of boll weevils with them, and to mills having a satis- 

 factory arrangement of their machinery as required by the Com- 

 mission. permits are given for the shipment of cotton-seed hulls; 

 to any point in the non-infested section. 



The Commission is frequently confronted with the question: 

 "So long as the weevil's progress by migratory flights cannot 

 be controlled, what is the use of trying to maintain a quarantine- 

 upon shipments likely to disseminate the weevil.'" To any 

 thinking man who will note, the progress made by the weevit 

 each year in its migrations, and the loss of territory which th- 

 pest experienced last winter (see Figures 1 and 2), the answer 



