Control the Corn Earworm in Grain Sorghum Heads

Kirk, V.M. (1959) Control the Corn Earworm in Grain Sorghum Heads. Journal of Economic Entomology, 52 (2). pp. 338-339.

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Single applications of several residual insecticides and Phosdrin were evaluated in South Carolina for Control of the corn ear worm, Heliothis zea (Boddie), in cases where it was infesting the heads of grain sorghum. Infestation data taken 3 and 14 days after treatment indicated that 1 or 2 pounds of DDT as spray or 2 pounds as dust and 2 pounds of Sevin as 10% dust were the only materials tested that gave good control throughout the crucial 2-week period. Present information indicates that these materials should be limited to use on sorghum grown for seed. Phosdrin at 0.5 pounds as a 2% dust resulted in fair control for 3 days, but failed for the longer period. Because of its short residual life, Phosdrin would be safe for use on feed sorghum. However, repeated applications would be needed to control the corn carworm.

Item Type: Article
Author Affiliation: Pee Dee Experiment Station of the South Carolina Agricultural Experiment Station, Florence.
Subjects: Plant Protection > Control Methods
Divisions: Sorghum
Depositing User: Library ICRISAT-InfoSAT
Date Deposited: 11 Apr 2012 13:24
Last Modified: 11 Apr 2012 13:24
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