FEDERAL HORTICULTURAL. BOARD. 617 



The pink-bollworm develof|ments during the season of 1920, sub- 

 sequent to the passage of this act, are briefly reviewed in the dis- 

 cussion under the heading "Effective work not possible under new 

 Texas law." 



REVIEW OF THE WORK IN LOUISIANA. 



The pink bollworm, previously believed to occur only in limited 

 areas in Texas, was discovered early in February, 1920, to have 

 invaded the parishes of Cameron, Calcasieu, and Jefferson Davis in 

 southwestern Louisiana. Alter some two months of intensive work 

 extending into April, with a considerable force, no infestation was 

 found in Louisiana outside of these parishes. The most plausible 

 theory of the infestation is that it originated in Cameron Parish 

 through cotton seed presumably obtained for planting from Beau- 

 mont, Tex., in 1917, and has spread comparativelj^ recently from 

 Cameron to the two adjacent parishes on the north. There is, how- 

 ever, a possibility of \\dder infestation in Louisiana and possibly in 

 Texas, due to shipments during the last three years of seed from 

 these Louisiana parishes to various towns in these two Sta*tcs. The 

 records indicate that such seed was shipped to the following towns 

 in Louisiana: Shreveport, Monroe, Bunkie, Alexandria, Broussard, 

 Eunice, and Gretna; and in Texas, to Houston, San Antonio, 

 San Marcos, and Snyder. 



There is strong reason to believe that the shipments to the Texas 

 points listed have not resulted in the local establishment of the pink 

 Dollworm. Most of tliis seed, some 25 or 30 carloads, went to Hous- 

 ton, and in the case of these and all of the other shipments into 

 Texas the seed was promptly milled and thus in large measure safe- 

 guarded. Furthermore, all of the places listed in Texas except 

 Snyder, on account of their relationship to seed imported from 

 Mexico in 1916, have been under intensive scouting for the last three 

 years and no trace of the pink bollworm has been detected. In the 

 case of Snyder, but a single carload of seed was received from Loui- 

 siana and this was in 1917 and the seed was immediately crushed. 



A thorough field inspection smTounding the points in Texas and 

 Louisiana to which had been shipped seed from the infested parishes 

 in Louisiana, begun in February, 1920, with rospect to the crop of 

 1919, has been continued. No infestation of the pink bollworm at 

 any of these points has been reported to date, October 1.^ 



Follo\\dng an interstate conference called at New Orleans March 5, 

 by Gov. Pleasant, of Louisiana, the State of Louisiana promptly 

 enacted necessary legislation and established noncotton zones for all 

 the infested districts and regulated areas for all the points within the 

 State to which seed or cotton had moved from these infested dis- 

 tricts. Provision was also made for a State fund of S250,000 for the 

 enforcement of such noncotton and regulated areas and for the reim- 

 bursement of ])lanters in the noncotton areas for losses which they 

 miorht sustain through the growth of crops less profitable than cotton. 



The working out of this Louisiana legislation, which became 

 effective early in July, 1920, has been most satisfactory. The pro- 

 hibition of growth of cotton in the invaded parishes has been elli- 



' Subsequent to the preparation of this report, the board has been advised of the finding of infestation 

 in a field alonssido the I^ouisiana Cotton oil Co., in Bossier Parish, immediately across the Ucd Kiver 

 from Shreveport. 



24435— AOR 1920 40 



