scholarly journals Late Season Control of Hornworms in Ga Flue-Cured Tobacco, 1994

1996 ◽  
Vol 21 (1) ◽  
pp. 305-305
Author(s):  
Robert M. McPherson ◽  
J. Delano Taylor ◽  
Bert D. Crowe

Abstract Flue-cured tobacco, CV ‘K-326’, was trans-planted on 29 Mar at the Coastal Plain Experiment Station in Tifton, GA. Production practices were used according to Georgia Cooperative Extension Service guidelines. A pre-plant incorporated tank mix of the following was applied: Tillam and Devrinol for weed control, Ridomil for blue mold control, Nemacur for nematode suppression, and Lorsban for wireworm and mole cricket control. Fertilizer (6-6-18) was applied in a split application at a rate of 0.5 ton/acre. Plots 4 rows wide (44 inch row spacing) X 20 ft long were arranged in a RCB design with 4 replications. On 11 Jul, all plants in each plot were cut down to a 12 inch mainstalk, all leaves were removed, and 100 lb/acre of additional nitrogen (16-0-0) was applied. All cut plants were then allowed to regrow with 2-3 main shoots. On 26 Jul, 9 insecticide treatments (plus an untreated control) were applied to the center 2 rows of selected plots using a CO2-powered backpack sprayer equipped with three TX-12 nozzles directed over a single row, delivering 23.2 gpa at 40 psi. The granular materials were hand applied on all available foliage. The number of live hornworms was recorded per 5 plants on row 2 of each plot prior to the application, and 3, 7, and 10 d after treatment (DAT). The percent defoliation was visually estimated 10 DAT. All data were subjected to ANOVA and DMRT (P = 0.05).

1994 ◽  
Vol 19 (1) ◽  
pp. 283-284
Author(s):  
Robert M. McPherson ◽  
Amy L. Lambert

Abstract Flue-cured tobacco was transplanted on 29 Mar at the Coastal Plain Experiment Station in Tifton, GA. Production practices were used according to Georgia Cooperative Extension Service guidelines. A preplant incorporated tank mix of the following was applied: Tillam and Devrinol for weed control, Ridomil for blue mold control, Nemacur for nematode suppression, and Lorsban for wireworm and mole cricket control. Fertilizer (6-6-18) was applied in a split application at a rate of 1000 lb/acre. Plots 4 rows wide (44 inch row spacing) × 20 ft long were arranged in a RCBD with 4 replications. On 9 Jul all plants in each plot were cut down to a 12 inch mainstalk and all leaves were removed. All cut plants were then allowed to regrow with 2-3 main shoots. On 23 Jul, 5 insecticide treatments (plus an untreated control) were applied to the center 2 rows of selected plots using a CO2-powered backpack sprayer equipped with three TX-12 nozzles directed over a single row, delivering 30.3 gpa at 40 psi. The number of live hornworms was recorded per 10 plants on row 2 of each plot prior to the application, and 5, 10, and 14 DAT. All data were subjected to ANOVA and Duncan’s Multiple Range Test.


1998 ◽  
Vol 23 (1) ◽  
pp. 306-306
Author(s):  
J. Delano Taylor ◽  
Robert M. McPherson ◽  
Bert D. Crowe

Abstract Flue-cured ‘K-326’ tobacco was transplanted on 1 Apr at the Georgia Coastal Plain Experiment Station Bowen Farm. Production practices were used according to Georgia Cooperative Extension Service guidelines and included a preplant tank mixture of Tillman, Devrinol, Ridomil, and Nemacur. Fertilizer (6-6-18) was applied at the rate of 1000 lb/acre in a split application. On 24 Jun, tops were removed and leaves stripped from all plants in the test area, and 16-0-0 fertilizer was applied at a rate of 100 lb/acre. In early Jul, all suckers except the 2 main shoots were removed from each plant. On 16 Jul the test site was partitioned into 24 plots that were 4 rows wide X 20 ft long, with 6 plots power range (replication) arranged in a RB design with 4 replications. The left row of each plot was left untreated (fallow border row) and the remaining 3 rows were treated with a selected insecticide using a CO2-powered backpack sprayer equipped with three TX-12 nozzles per row at 40 psi. One treatment served as an untreated control. The number of live hornworm larvae on plants 2-6 on the middle treated row was recorded from each plot 2, 5 and 8 d after treatment (DAT). Treatments were reapplied on 25 Jul and hornworm counts taken 3, 7, and 10 DAT. On 4 Aug, plants 2-6 on the center row were visually rated for % defoliation and also rated for aphid infestations. Aphid ratings ranged from 0 to 7, with 0 = no aphids, 1 = > 10 aphids/plant, 2 = 10-100 aphids/plant, 3 = 100-500 aphids/plant, 4 = 500-1500 aphids/plant, 5 = 1500-3000 aphids/plant, 6 = 3000-5000 aphids/plant, and 7 = > 5000 aphids/plants. All count data and defoliation and aphid ratings were subjected to analysis of variance and the means were separated using DMRT (P = 0.05).


EDIS ◽  
1969 ◽  
Vol 2002 (4) ◽  
Author(s):  
K. B. Nguyen

This document is EENY-092, one of a series of Featured Creatures from the Entomology and Nematology Department, Florida Cooperative Extension Service, Institute of Food and Agricultural Sciences, University of Florida. Published: June 1999. Revised: August 1999. Reviewed: May 2003. https://edis.ifas.ufl.edu/in249


EDIS ◽  
1969 ◽  
Vol 2002 (4) ◽  
Author(s):  
John Howard Frank ◽  
Andrei Sourakov

This document is EENY-268, one of a series of Featured Creatures from the Entomology and Nematology Department, Florida Cooperative Extension Service, Institute of Food and Agricultural Sciences, University of Florida. Published: March 2002. https://edis.ifas.ufl.edu/in451


EDIS ◽  
1969 ◽  
Vol 2005 (3) ◽  
Author(s):  
John L. Capinera

This species occurs widely in the western hemisphere and is known from much of the southern United States. Despite its wide distribution, damage is limited principally to sandy soil, so it tends to cause injury in the coastal plain of the southeastern states from South Carolina to Texas. This document is EENY-155, one of a series of Featured Creatures from the Entomology and Nematology Department, Florida Cooperative Extension Service, Institute of Food and Agricultural Sciences, University of Florida. Published: September 2000. Revised: November 2005. EENY155/IN312: Lesser Cornstalk Borer, Elasmopalpus lignosellus (Zeller) (Insecta: Lepidoptera: Pyralidae) (ufl.edu)


EDIS ◽  
2019 ◽  
Vol 2005 (5) ◽  
Author(s):  
Celeste A. Gilbert ◽  
Eric H. Simonne

With the onset of the implementation of the BMP program for vegetable crops, growers may be interested, concerned and confused about how the program will affect their production practices. This publication is meant to answer some of these concerns and provide an update on the status of the BMP manual for vegetable crops, with an emphasis on the rule making progress and acceptable strategies for nutrient management. This document is HS1013, one of a series of the Horticultural Sciences Department, Florida Cooperative Extension Service, Institute of Food and Agricultural Sciences, University of Florida. Publication date: May 2005.


EDIS ◽  
1969 ◽  
Vol 2004 (18) ◽  
Author(s):  
John L. Capinera

The striped blister beetle, Epicauta vittata (Fabricius), is a native species. It has been collected from all eastern states west to, and including, South Dakota, Nebraska, Kansas and Oklahoma. In Canada it is known from Quebec and Ontario. Populations from the southeastern coastal plain including Florida, southern Georgia and eastern South Carolina differ in appearance from beetles found elsewhere and are called the 'lemniscate race,' but interbreed successfully with normal beetles. This document is EENY-280, one of a series of Featured Creatures from the Entomology and Nematology Department, Florida Cooperative Extension Service, Institute of Food and Agricultural Sciences, University of Florida. Published: January 2003. EENY280/IN556: Striped Blister Beetle, Epicauta vittata (Fabricius) (Coleoptera: Meloidae) (ufl.edu)


EDIS ◽  
1969 ◽  
Vol 2003 (18) ◽  
Author(s):  
Scott A. Smith ◽  
Timothy G. Taylor

The vegetable budgets presented in these reports are intended to reflect production practices that are considered typical for any given crop in a given area. A consensus of opinion among UF/IFAS personnel and various producers in each production area define typical production practices for each crop. Cost estimates resulting from this process should not be considered as representing the average cost of production in a statistical sense, nor should they be considered as necessarily relating to recommended production practices. The intent of these cost budgets is to establish a benchmark within the range of actual costs that could be expected to produce the crop. This is EDIS document FE436, a publication of the Department of Food and Resource Economics, Florida Cooperative Extension Service, UF/IFAS, University of Florida, Gainesville, FL. Published November 2003. https://edis.ifas.ufl.edu/fe436


1994 ◽  
Vol 19 (1) ◽  
pp. 289-289
Author(s):  
Paul J. Semtner ◽  
W. B. Wilkinson

Abstract This experiment was conducted at the VPI and SU Southern Piedmont Agricultural Research and Extension Center, Blackstone, VA, to evaluate TA and TBW control on flue-cured tobacco with various combinations of foliar and soil-applied systemic insecticides. Tobacco was transplanted into experimental plots, 8 X 40 ft (2 rows × 24 plants), 12 May. Ten treatments were established in a randomized complete block design with 4 replications. The Temik soil treatments were applied in 14-inch bands using a tractor-mounted Gandy granular applicator and immediately covered with 6 inches of soil during bed formation on 11 May. Foliar treatments were applied on 9 and 30 Jul using a CO2-pressurized backpack sprayer that delivered 27 gpa at 60 psi through 3, TX-10 nozzles/row. Production practices followed Virginia Cooperative Extension Service recommendations except for insect control. TA populations were estimated on the upper 4 leaves of 10 plants per plot before foliar treatments were applied and at 3, 7, 12, and 20 d after the first application and 4 and 11 d after the second application. TBW were reared in the laboratory on artificial media for 7 d and released at one BW/plant on 20 consecutive plants in the second row of each plot on 6 Jul. TBW on the infested plants were counted on the d before treatment and at 3, 6, and 12 DAT. Leaves were harvested, cured, weighed, and graded by a USDA/AMS inspector. This information was used to calculated tobacco yield and price. Data were analyzed by ANOVA and significantly different means were separated by DMRT. TA count data were transformed to Log10 (x + 1) and TBW counts were transformed to SQRT (x + 0.5) before ANOVA.


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