Boll Weevil, Bollworm, and Tobacco Budworm, and Fruiting Structures of the Cotton Plant: Number of Plants That Must be Sampled at Different Square Populations and Percentage Damaged123

1977 ◽  
Vol 70 (6) ◽  
pp. 791-793 ◽  
Author(s):  
Dan A. Wolfenbarger
Keyword(s):  
Cotton Plant ◽  
Boll Weevil ◽  
Tobacco Budworm

Registration of Five Cotton Germplasm Lines with Resistance to Bollworm, Tobacco Budworm, and Boll Weevil

Crop Science ◽  
1990 ◽  
Vol 30 (1) ◽  
pp. 235-236 ◽  
Author(s):  
T. W. Culp ◽  
C. C. Green ◽  
B. U. Kittrell
Keyword(s):  
Boll Weevil ◽  
Tobacco Budworm

An Arrestant and Feeding Stimulant for the Boll Weevil in Water Extracts of Cotton-Plant Parts1

1963 ◽  
Vol 56 (4) ◽  
pp. 449-454 ◽  
Author(s):  
Fowden G. Maxwell ◽  
Johnie N. Jenkins ◽  
J. C. Keller ◽  
William L. Parrott
Keyword(s):  
Cotton Plant ◽  
Boll Weevil ◽  
Water Extracts ◽  
Feeding Stimulant

scholarly journals Survival pattern of the boll weevil during cotton fallow in Midwestern Brazil

2017 ◽  
Vol 52 (3) ◽  
pp. 149-160 ◽  
Author(s):  
Carmen Silvia Soares Pires ◽  
Mayra Pimenta ◽  
Renata Alves da Mata ◽  
Lucas Machado de Souza ◽  
Débora Pires Paula ◽  
...  
Keyword(s):  
Cotton Plant ◽  
Boll Weevil ◽  
Alternative Food ◽  
Food Sources ◽  
Adult Longevity ◽  
Cotton Boll ◽  
Fallow Period ◽  
Reproductive Structures ◽  
Survival Pattern ◽  
Alternative Food Sources

Abstract: The objective of this work was to determine the survival pattern of the cotton boll weevil during fallow in Midwestern Brazil. The percentage of adults that remained in the cotton reproductive structures, the percentage of adults searching for shelters, and the longevity of adults fed on pollen and nectar as alternative food sources were determined. For this, four populations were sampled in cotton squares and bolls, totaling 11,293 structures, from 2008 to 2012. The emergency of cotton weevil adults was monitored from the collection of the structures until the next cotton season. In the laboratory, newly-emerged adults were fed on hibiscus or Spanish needle, and their life span was monitored individually. Most adults (85.73%) left the reproductive structures, regardless of the cotton plant phenology, up to 49 days after the structures were collected. One individual (0.0002%) from 5,544 adults was found alive after the fallow period. The diet with hibiscus and Spanish needle provided adult longevity of 76±38 days, which was enough time for adults to survive during the fallow period. Most of the boll weevils leave the cotton structures at the end of harvest, survive using alternative food sources, and do not use cotton plant structures as shelter during the legal cotton fallow period in Midwestern Brazil.

scholarly journals Evaluation of Selected Insecticide Combinations Against Boll Worm/Tobacco Budworm in Louisiana, 1995

1996 ◽  
Vol 21 (1) ◽  
pp. 271-271
Author(s):  
K. D. Torrey ◽  
B. R. Leonard ◽  
J. H. Fife ◽  
J. B. Graves
Keyword(s):  
Cotton Seed ◽  
Boll Weevil ◽  
Test Area ◽  
Tobacco Budworm ◽  
Research Station ◽  
Seed Cotton ◽  
Hollow Cone ◽  
Flower Buds ◽  
Damage Data ◽  
High Clearance

Abstract The efficacy of selected insecticides was evaluated against BW/TBW at the Macon Ridge location of the Northeast Research Station. Cotton seed was planted 12 Jun in plots consisting of 4 rows (40 inch centers) X 50 ft. Treatments were arranged in a RCB design and replicated 4 times. Applications were made with a high clearance sprayer calibrated to deliver 6 gpa through Teejet TX-8 hollow cone nozzles (2/row) at 46 psi. Insecticides were applied on 8, 11, 14, 18 Aug and 11 Sep. Treatments were evaluated by examining 50 flower buds (squares) per plot on 11, 14, 22 Aug for evidence of BW/TBW and boll weevil damage. Data reported for boll weevil represent a mean across all sample dates. The plots were mechanically harvested on 16 Oct to determine seed cotton yields. The test area was irrigated by an overhead sprinkler “as needed” during the season, but not within 48 h of treatment applications. Rainfall did not influence the effects of these treatments. Data were analyzed with ANOVA, and means were separated according to DMRT.

Efficacy of the Bollgard Gene in Transgenic Cotton Lines Against Bollworm and Tobacco Budworm, 1995

1997 ◽  
Vol 22 (1) ◽  
pp. 433-434
Author(s):  
J.H. Benedict ◽  
D.R. Ring ◽  
J.C. Correa ◽  
R.E. Buehler ◽  
E.M. Johnson ◽  
...  
Keyword(s):  
Insect Pests ◽  
Boll Weevil ◽  
Transgenic Cotton ◽  
Tobacco Budworm ◽  
Corpus Christi ◽  
Lepidopteran Pests ◽  
Control Target ◽  
Main Plot ◽  
Field Plots ◽  
Cotton Fleahopper

Abstract Transgenic cotton lines expressing an insecticidal protein produced by the crylA(c) gene (i.e., BoUgard Gene), or cryllA gene (Monsanto Co.) from Bacillus thuringiensis kurstaki, and the nontransgenic parent line Coker 312 (COK 312), were planted 25 Apr 1995 near Corpus Christi, Texas. Field plots were 4 row (38 inch centers) X 30 ft. Treatments (i.e., cotton lines) were arranged in a split plot RCB and each plot replicated 6 times. The main plot was lepidopteran control (i.e., with or without lepidopteran sprays of Karate (0.03 lb[AI]/acre) to suppress tobacco budworm, bollworm and other lepidopteran pests) and subplots were 6 cotton lines. Plots for lepidopteran suppression were sprayed on 6, 14, 21, 28 Jul with Karate using a backpack, CO2 powered sprayer and a 2 row handheld spray boom. The entire test was planted with in-furrow insecticide and oversprayed as needed for inseason control of insect pests such as thrips, aphids, boll weevil and cotton fleahopper. Efficacy of transgenic cottons to control target lepidopteran pests was determined by examining 20 flower buds and 20 capsules per plot on 5, 12, 19, 26 Jul for bollworm-tobacco budworm feeding injury, and taking lint yields per plot. Supplemental soil moisture was provided by sprinkler and furrow irrigation during the season but not within 48 h following a lepidopteran control spray. The plots were hand-harvested (13 ft 9 inches from middle 2 rows) and seedcotton ginned on a laboratory 10-saw gin.

Dispersal of boll weevil toward and within the cotton plant and implications for insecticide exposure

2020 ◽  
Author(s):  
Lucas S Arruda ◽  
Jorge B Torres ◽  
Guilherme G Rolim ◽  
Christian SA Silva‐Torres
Keyword(s):  
Cotton Plant ◽  
Boll Weevil ◽  
Insecticide Exposure

The boll weevil‐cotton plant complex

1973 ◽  
Vol 1 (4) ◽  
pp. 291-351 ◽  
Author(s):  
P. A. Hedin ◽  
A. C. Thompson ◽  
R. C. Gueldner
Keyword(s):  
Cotton Plant ◽  
Boll Weevil

Effects of cotton plant allelochemicals and nutrients on behavior and development of tobacco budworm

1991 ◽  
Vol 17 (6) ◽  
pp. 1107-1121 ◽  
Author(s):  
Paul A. Hedin ◽  
William L. Parrott ◽  
Johnie N. Jenkins
Keyword(s):  
Cotton Plant ◽  
Tobacco Budworm ◽  
Plant Allelochemicals
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