The Effects of Certain New Soil Insecticides on Plants1

Publisher Website
Google Scholar
Abstract
Certain new insecticides (dichloro-diphenyl-dichlorethane, hydroxypentamethylflavan, DDT, benzene hexachloride, chlordan, chlorinated camphene) were applied heavily to the soil and mixed by rotary tillage to a depth of 7-8 in. Propylene dichloride was included in these series of chemicals, but was injd. into the soil with a power soil applicator. 29 vegetables were planted across these treatments and observed throughout the season for degree of injury. Plants in several of the treated plots showed no evidence of injury. DDT at 137 lb. per acre caused severe stunting of tomato transplants, bush beans, and pole beans. Chlordan at 27.5 lb. per acre caused slight stunting of lima beans. Benzene hexachloride at 27.5 lb. [gamma] isomer per acre caused a varying degree of plant injury. 15 vegetable vars. grown from seed were entirely destroyed, while 8 vegetables from seeds or transplants were partially susceptible to injury. Nine vegetables from the Umbelliferae and Cruciferae were not injured by benzene hexachloride and produced excellent growth. Several common weeds were noted to be susceptible to injury by benzene hexachloride. Vegetables, such as corn and potatoes, were flavored by benzene hexachloride, but no off flavor could be detected in cabbage, broccoli, kohlrabi, mustard, celery, carrots, lettuce, endives, bush beans and pole beans.

This publication has 8 references indexed in Scilit: