Abstract The objective of this experiment was to evaluate the efficacy of Orthene 75 SP, Orthene 97 PE, and Admire 2°F as transplant water treatments against tobacco aphids in the field. Plots were established at the Central Crops Research Station, Clayton, NC, on 6 May in a field with a Norfolk loamy sand soil. Individual plots were 4 rows (1.14 m apart) wide by 22 plants (ca. 13.7 m) long and were arranged in RCB design with 4 treatments (untreated check included) and 4 blocks. On 6 May, the field was transplanted asing a 2-row transplanter. Transplant water treatments were applied at a rate of 170 gpa. Soil moisture was good. Once a week after transplant, all plants in one row of the plot (20) were rated for aphid abundance on a 0-7 scale as given in the table. Using this aphid abundance data, the average aphid rating \vas calculated. Aphid ratings were subjected to ANOVA and WD, K = 100, was used to separate treatment means.
Abstract The objective of this experiment was to evaluate the efficacy of foliar applications of Orthene 75 SP, Orthene 75 SP with Pheast 93.3 SP, Tracer 4 SC, and Tracer 4 SC with Pheast 93.3 WP against tobacco hornworms in the field. Plots were established at the Central Crops Research Station, Clayton, NC, on 8 May in a field with a Norfolk loamy sand soil. Individual plots were 4 rows (1.14 m apart) wide by 22 plants (ca. 13.7 m) long and were arranged in a RCB design with 7 treatments (untreated check included) and 4 blocks. Tobacco was transplanted on 8 May with a 2-row transplanter. Treatments were applied on 10 Jul. Foliar treatments were applied using a 2-row, CO2-powered backpack sprayer. Materials were applied through a single nozzle (Spraying Systems D2-33) per row at a pressure of 60 psi and 12.5 gpa. At 5, 12, and 15 days after treatment, hornworm numbers were counted in all plots. Using this hornworm abundance data, the average horn-worm number was calculated. Hornworm numbers were subjected to ANOVA and WD, K = 100, was used to separate treatment means.
Abstract The objective of this experiment was to evaluate the efficacy of foliar applications of Orthene 75 SP, Provado 1.6 FL, Fulfill 50 WP, and Thiodan 3 EC against tobacco aphids in the field. Plots were established at the Central Crops Research Station, Clayton, NC, on 9 May in a field with a Norfolk loamy sand soil. Individual plots were 4 rows (1.14m apart) wide by 22 plants (ca. 13.7 m) long and were arranged in a RCB design with 5 treatments (untreated check included) and 4 blocks. Tobacco was transplanted on 9 May with a 2-row transplanter. Soil moisture was good. Treatments were applied on 16 Jul. Foliar treatments were applied using a 2-row, COz-powered backpack sprayer. Materials were applied through a single nozzle (Spraying Systems D2-33) per row at a pressure of 60 psi and 12.5 gpa. At 5 and 9 days after treatment, aphid abundance in all plots was rated on a 0-7 scale as given in the table. Using this aphid abundance data, the average aphid rating was calculated. Aphid ratings were subjected to ANOVA and WD, K = 100, was used to separate treatment means.
Abstract The objective of this experiment was to evaluate the efficacy of foliar applications of Orthene 75 SP, Provado 1.6 FL, Orthene 97 PE, and Thiodan 3 EC against tobacco aphids in the field. Plots were established at the Central Crops Research Station, Clayton, NC, on 9 May in a field with a Norfolk loamy sand soil. Individual plots were 4 rows (1.14 m apart) wide by 22 plants (ca. 13.7 m) long and were arranged in a RCB design with 7 treatments (untreated check included) and 4 blocks. Tobacco was transplanted on 9 May with a 2-row transplanter. Soil moisture was good. Treatments were applied on 9 Jul. Foliar treatments were applied using a 2-row, CO2-powered backpack sprayer. Materials were applied through a single nozzle (Spraying Systems D2-33) per row at a pressure of 60 psi and 12.5 gpa. At 5, 9, and 16 days after treatment, aphid abundance in all plots was rated on a 0-7 scale as given in the table. Using this aphid abundance data, the average aphid rating was calculated. Aphid ratings were subjected to ANOVA and WD, K = 100, was used to separate treatment means.
Abstract The objective of this experiment was to evaluate the efficacy of foliar applications of Orthene 75 SP, Provado 1.6 FL, Fulfill 50 WP, and Thiodan 3 EC against tobacco aphids in the field. Plots were established at the Central Crops Research Station, Clayton, NC, on 9 May in a field with a Norfolk loamy sand soil. Individual plots were 4 rows (1.14m apart) wide by 22 plants (ca. 13.7 m) long and were arranged in a RCB design with 5 treatments (untreated check included) and 4 blocks. Tobacco was transplanted on 9 May with a 2-row transplanter. Soil moisture was good. Treatments were applied on 16 Jul. Foliar treatments were applied using a 2-row, COz-powered backpack sprayer. Materials were applied through a single nozzle (Spraying Systems D2-33) per row at a pressure of 60 psi and 12.5 gpa. At 5 and 9 days after treatment, aphid abundance in all plots was rated on a 0-7 scale as given in the table. Using this aphid abundance data, the average aphid rating was calculated. Aphid ratings were subjected to ANOVA and WD, K = 100, was used to separate treatment means.
Abstract The objective of this experiment was to evaluate the efficacy of Orthene 75 SP, Orthene 75 SP with Tracer NAF-85, Admire 2°F with Tracer NAF-85, and Temik 15 G with Tracer NAF-85 against tobacco aphids in the field. Plots were established at the Central Crops Research Station, Clayton, NC, on 6 May in a field with a Norfolk loamy sand soil. Individual plots were 4 rows (1.14 m apart) wide by 22 plants (ca. 13.7 m) long and were arranged in a RCB design with 5 treatments (untreated check included) and 4 blocks. On 6 May, the granular materials were applied to the performed beds through 2 fertilizer shanks attached to an electrically driven, granular applicator. The shanks were positioned 12 cm on each side of the row center and 10 cm below the final bed surface. Tobacco was transplanted on 7 May with a 2-row transplanter. Transplant water treatment of Admire 2°F was applied beside the plants. Foliar spray treatments were applied using a CO2 backpack sprayer through a single nozzle (Spraying Systems D2-33) per row at a pressure of 60 psi and 12.5 gpa. Once a wk after transplant, all plants in one row of the plot (20) were rated for aphid abundance on a scale of 0 to 7 as given in the table. Using this aphid abundance data, the average aphid rating was calculated. Aphid ratings were subjected to ANOVA and WD, K = 100, was used to separate treatment means.
Abstract The objective of this experiment was to evaluate the efficacy of broadcast, ppi Lorsban 4 E and Mocap 6 EC against tobacco wireworms in the field. Plots were established at the Border Belt Tobacco Research Station, Whiteville, NC, on 30 Apr in a field with a Norfolk loamy sand soil. Individual plots were 4 rows (1.14 m apart) wide by 22 plants (ca. 13.7 m) long and were arranged in a RCB design with 3 treatments (untreated check included) and 4 blocks. On 24 Apr, the foliar materials were applied using a COz-powered backpack sprayer fitted with Spraying Systems flat-fan nozzles, 20" apart on a 6.7" boom at 30 psi and 25 gpa. Tobacco was transplanted on 30 Apr with a single-row transplanter. At 20 days after transplanting, 10 plants from rows 2 and 3 were pulled and rated for damage. Wireworm damage ratings were subjected to ANOV and WD, K = 100, was used to separate treatment means.
Abstract The objective of this experiment was to evaluate the efficacy of foliar applications of Orthene 75 SP, Orthene 75 SP with Pheast 93.3 SP, Tracer 4 SC, and Tracer 4 SC with Pheast 93.3 WP against tobacco hornworms in the field. Plots were established at the Central Crops Research Station, Clayton, NC, on 8 May in a field with a Norfolk loamy sand soil. Individual plots were 4 rows (1.14 m apart) wide by 22 plants (ca. 13.7 m) long and were arranged in a RCB design with 7 treatments (untreated check included) and 4 blocks. Tobacco was transplanted on 8 May with a 2-row transplanter. Treatments were applied on 10 Jul. Foliar treatments were applied using a 2-row, CO2-powered backpack sprayer. Materials were applied through a single nozzle (Spraying Systems D2-33) per row at a pressure of 60 psi and 12.5 gpa. At 5, 12, and 15 days after treatment, hornworm numbers were counted in all plots. Using this hornworm abundance data, the average horn-worm number was calculated. Hornworm numbers were subjected to ANOVA and WD, K = 100, was used to separate treatment means.
