. Bulletin. Insects; Insect pests; Entomology; Insects; Insect pests; Entomology. 70 PAPERS OX INSECTS AFFECTING VEGETABLES. usually exceeds $o a ton. As previously mentioned, a defoliation by the sugar-beet webworm may reduce the yield of sugar beets 1 to 5 tons to the acre and also cause a loss in sugar content and purity. As this damage can be absolutely prevented at a cost not exceeding $2 an acre, the profits from spraying infested beets are apparent. CONCLUSION. An easily accessible supply of water will aid materially in keeping down the cost of spraying. TVater from the irrigation later
. Bulletin. Insects; Insect pests; Entomology; Insects; Insect pests; Entomology. 70 PAPERS OX INSECTS AFFECTING VEGETABLES. usually exceeds $o a ton. As previously mentioned, a defoliation by the sugar-beet webworm may reduce the yield of sugar beets 1 to 5 tons to the acre and also cause a loss in sugar content and purity. As this damage can be absolutely prevented at a cost not exceeding $2 an acre, the profits from spraying infested beets are apparent. CONCLUSION. An easily accessible supply of water will aid materially in keeping down the cost of spraying. TVater from the irrigation laterals may be used, but in all cases it should be carefully strained to pre- vent dirrand other material from getting into the pump and clogging the nozzles. TTater that is highly charged with alkali should be avoided. After a sprayer is used it should be carefully washed with clean water and all the working parts thoroughly oiled. It is a mistake to allow a sprayer to stand in the field exposed to sun and weather, and it will pay to keep it housed when not in actual use. As a final word, it ma}' be well to state that webworms, and with few exceptions most other insects which affect sugar beets in the Arkansas Valley, can be easily and cheaply controlled. When this fact is more generally accepted by the beet growers it is safe to say that sugar beets will produce still better profit-. ADDITIONAL COPIES of this publication -£±- may be procured from the Superintend- ent of Documents, Government Printing Office, Washington, D. C, at 5 cents per copy. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original United States. Bureau of Entomology. Washington : G. P. O.
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