The Montgomery advertiser., 1909-12-27
FIEatins the nen weevil.

New Orleans Times-Democrat.
 The Louisiana State Crop Pest com mission make annonncemenas ss sasnsa sn una that body under the authorship of Ento-
 4.oIoRist Wilmon Newell and his as- sistant, e. D. Smith, as sequei to many months inyestigation and sl,sci. eS- Messrs. Newell and smith have deyel- oped a successful method of poisoning the over-mintered boil weeytis In spring and early summer. |. c,r..,ar No. 3s of the State Crop Pest Com mission, entitled "Powdered Arsenate of Lead as Practical Boil Wesv,l ess Poison long II list inc sf sssas ars as scribed in detail. All were so ar- ranged that the production of cotton treated with powered arsenate or lead in a proper manner c1n.a Se Ss ac. same Kind of cotton not treated. In some experiments the cotton produc- lion was more than doubled by the tn- lead. In others the margin of pront was small. but definite, unquestion- able pront from the use of the potson was obtained in twelve experimenus in the crop where the poison was used .. as Il per cent. The average produc- ton of the cotton, all experiments, .. nich was treated with the poison, WAS 0f9 POutAaS OA 5Ct0 NSthSh ". acre. The average proauction of all similar cotton, not poisoned, was Sy2 pounds per acre, The appltcations.e Tn all the experiments, We're made witn rusting guns, which force the powder into the terminal buds of the cotton plants with powerful blast of air. hy this means the poison Is made to reach many of the feeding, places or the boil weevil that could not ba reached by any other means.
 Pow dered arsenate of lead is a pois- on developed by Mir. Newell during the course of his investigations of the Weevil during the last four years. It Is q white, impalpabie powder, having the same chemncal composition as the paste lead arsenate or commerce. Un- like paris green. it does hot contain piled to the cotton plants in enormous qualities without any injury to the plants themselves. m some or the ex- periments as much as ntty ponnds oi of cotton betWeen June 1 and August 1. These experiments showed profit from it's use. but the greatest amount of net profit was ootainea Wnere acre were used In the course of i've
 The writers of Circular No. S3 frank ly predict that nine rarmers out or ev- cry ten will fall in the use Of this poison at the first attempt. Success seems to depend upon the farmer un- derstandtng perfectly the principles upon which successful poisoning or work of poisoning being done with extreme care and with the proper ma chinery. The adoption of this new agent for destroying the .weevu does not call for any change In the ih~ proved cultural methods as now prac- ticed. The use of this poison will not protect the top crop and its use Tn late summer and autumn Is considered money thrown away. 1t can be util- ized only for destruction of the boil Weevils which hibernate successfully and which appear in the fields in iowance is made for the fact that weevils do not all emerge from hiber- nation at any given Ttmes some re- maining in winter quarters until ap- proximately July 1.
 The. use of powdered arsenste or pear on the cotton plants. when ap- oiled as directed by Messrs. Newell and Smith, results in destruction Of practically all boil weevils then in tho fields. The infestation caused by ters after that time is retarded by further applications of the poison. A considerable number of the Insects can be killed with the arsenAte after cot- ton Is in fruitage. but the rate or weevil increase is so great that the back" the infestation until fair crop Is set on the plants. The outcome Of the field experiments made by Messrs. Newell and Smith appear to show that their theories in the matter are cor rect Circular No; Shar Ss also eHguains fsasIng planters, confirming the statements made as to the production in the va- rious experiments.