Show Kill Cabbage Worm by Poison Sprays Arsenic May Also Be Applied Applied Applied Ap Ap- plied in Dust Form Prepared by the United States Department of Agriculture The common cabba cabbage e worm the tho most destructive Insect en enemy em of at cabbage cabbage cabbage cab cab- bage and related crops Is best controlled controlled controlled con con- trolled by spra spraying Ing with lead lend arsenate or calcium arsenate sn says s 's the United States Department of ot A Agriculture In Ina a publication Just Issued entitled The Common Cabbage Worm and Its Con Con- This pest Is a velvety green caterpillar about one and quarter one-quarter Inches In length and Is the larva of ot ofa ota a white butterfly known to mo most t farmers The The worm would cause much heavier losses according to the bulletin but for a number of ot natural enemies among the most Important being certain certain certain tain wasp-like wasp parasites or four- four winged flies the thc Immature forms of at which feed teed wl within the body of the caterpillar Earl Early Karly In the season the worm attacks attacks attacks at at- tacks the cabbage riddling the thc outer leaves as as they form frequently feedIng feedIng feeding feed- feed Ing within the Immature heads which are rendered unfit for food Sometimes Some Some- times It cuts out the bud from the young oung plant thus preventing development development develop elop ment of the head Arsenic poisons ns may be applied In dust form Corm rather then than as a spray by mixing the powder hydrated or slaked air lime land plaster dusting sulphur or che cheap p light finely pulverized pulverized pul pul- material which will adhere to the cabbage leaves Although dusts are more easily and mid quickly applied than sprays they the do not always distribute distribute distribute dis dis- dis- dis tribute the poison polson as evenly venly and unless unless un un- less the dusting Is done when the plants are wet they do not stick as aswell well Farmers' Farmers Bulletin F 1461 containing containing contain contain- ing a description of at the common common cabbage cabbage cabbage cab cab- bage worm together r with Information relative to control measures necessary necessary sar sary materials and equipment may be obtained free while the supply lasts from the United States Dep Department of Agriculture Washington D. D C. C l |