Effects of Methyl Parathion, DDT, and Toxaphene on the Boll Weevil, Bollworm, and Cotton Plant in North Carolina12

1970 ◽  
Vol 63 (2) ◽  
pp. 596-599
Author(s):  
W. J. Mistric ◽  
B. M. Covington ◽  
F. D. Smith
Keyword(s):  
Cotton Plant ◽  
Methyl Parathion ◽  
Boll Weevil

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 Efecto del paratión metílico en poblaciones del picudo del algodonero.

2006 ◽  
Vol 10 (2) ◽  
pp. 107
Author(s):  
Jesús Lorea Gallardo ◽  
Dan A. Wolfenbarger
Keyword(s):  
Methyl Parathion ◽  
Boll Weevil ◽  
Cotton Boll ◽  
Technical Grade ◽  
Cotton Boll Weevil ◽  
Rio Bravo ◽  
Ld50 Value

 LD50  of methyl parathion was determined on cotton boll weevil populations collected from Rio Bravo, Tamaulipas, Mexico, Tiquisate, Guatemala and Weslaco, Texas, E.U. The insecticide obtained as a 97% technical grade was diluted in acetone and applied topically to dorsum of thorax of the boll weevils. The LD50  values of methyl parathion on Mexico and E.U. cotton boll weevil populations were 0.0091 and 0.01 mg/weevil, respectively. Both values indicated susceptibility. Te LD50  value of methyl parathion on the Guatemala cotton boll weevil populations was 0.44 μ g/weevil. this value may be considered as indicative of resistance.

scholarly journals A Threshold Management Test with Nucotn 33B, 1996

1997 ◽  
Vol 22 (1) ◽  
pp. 242-242 ◽  
Author(s):  
E. Burris ◽  
D. R. Cook ◽  
B. R. Leonard ◽  
J. B. Graves
Keyword(s):  
Cotton Seed ◽  
Methyl Parathion ◽  
Boll Weevil ◽  
Control Measures ◽  
Silt Loam ◽  
Seeding Rate ◽  
Spray System ◽  
The Press ◽  
Loam Soil ◽  
Insecticide Control

Abstract Plots were replicated four times in a RCB design and were eight rows (40 in spacing) X 45 ft. Transgenic cotton seed expressing the Bt delta endotoxin and seed of the non-transgenic parent line (DP 5415) were planted on 15 May, on a Commerce silt loam soil which was fertilized with 90 lb N/acre. Cotton seed was planted with a John Deere 7100 series planter which was equipped with 10 inch seed cones mounted to replace the seed hoppers. The seeding rate was 4 seed/row ft. Granular in-furrow treatments were applied with 8 inch belt cone applicators. In-furrow spray treatments were applied with a CO2 charged spray system through 25015 flat fan nozzles positioned in front of the press wheels. The spray tips were turned to spray across the furrow and were calibrated to deliver 5 gpa finished spray. All plots received 0.5 lb (AI)/acre Temik 15G and 0.75 lb (AI)/acre Terraclor Super X 2E at planting. Insecticide control measures were applied to treatments when boll worms and tobacco budworms first deposited eggs in Jul, and at 2, 5, and 7 percent BW/TBW/BAW damaged squares. The test was conducted in the presence ol high boll weevil population densities. Beet army worms were present in late Jul, Aug and Sep. Control of boll weevils and tarnished plant bugs was maintained on an “as needed” basis using the following treatments: Methyl parathion 4E, (0.33 lb (AI)/acre) on 11 Jul; Vydate 3.77CLV, (0.25 lb (AI)/acre) on 30 Jul; Methyl parathion 4E, (0.33 lb (AI)/acre) + Orthene 90S, (0.33 lb (AI)/acre) on 6 Aug; Methyl parathion 4E, (0.33 lb (AI)/acre) + Dimethoate 4E. (0.25 lb (AI)/acre) on 13 Aug; Baythroid 2E, (0.045 lb (AI)/acre) on 11 Sep. In addition to the overspray treatments listed above, the DP 5415 and NuCOTN 33B spray strategies (treatments 2 and 4) received the following insecticide treatments: Karate IE, (0.03 lb (AI)/acre) on 22 Jul; Karate IE, (0.03 lb (AI)/acre) on 25 Jul; Karate IE, (0.03 lb (AI)/acre) on 30 Jul; Karate IE, (0.03 lb (AI)/acre) on 5 Aug; Karate IE, (0.03 lb (AI)/acre) on 8 Aug. Cu-racron 8E, (1.0 lb (AI)/acre) + Pirate 3E, (0.2 lb (AI)/acre) + Vydate 3.77CLV, (0.25 lb (AI)/acre) on 15 Aug and Curacron 8E, (1.0 lb (AI)/acre) + Pi-rate 3 SC, (0.2 lb (AI)/acre) + Methyl parathion 4E (0.33 lb (AI)/acre on 26 Aug. Bollgard® threshold treatments 2% and 5% were sprayed with Karate IE, (0.033 lb (AI)/acre) on 8 Aug and Curacron 8E (1.0 lb (AI)/acre) + Pirate 3 SC (0.2 lb (AI)/acre) + Vydate 3.77 CLV, (0.25 lb (AI)/acre) on 15 Aug. All NuCOTN 33B threshold treatments were sprayed with Baythroid 2E (0.045 lb (AI)/acre), on 11 Sep. Plant terminals and squares were examined for BW/TBW eggs, larvae, damage and boll weevil damaged squares on 11, 24, 30 Jul, and 2, 8, 13 and 19 Aug. Terminals were examined on all dates except 19 Aug. The center four rows of the plots were harvested on 14 Oct to determine seedcotton yield. Plots were harvested using a John Deere spindle type picker. Yields were converted to lb seedcotton/acre.

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.

Effects of Some Formulations of Methyl Parathion, Toxaphene and DDT on the Cotton Plant 1

Crop Science ◽  
1963 ◽  
Vol 3 (4) ◽  
pp. 338-341 ◽  
Author(s):  
Bruce Roark ◽  
T. R. Pfrimmer ◽  
M. E. Merkl
Keyword(s):  
Cotton Plant ◽  
Methyl Parathion

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

Susceptibility of the Boll Weevil (Coleoptera: Curculionidae) to Methyl Parathion in Nicaragua

1987 ◽  
Vol 80 (2) ◽  
pp. 358-361 ◽  
Author(s):  
Sean L. Swezey ◽  
Martha L. Salamanca
Keyword(s):  
Methyl Parathion ◽  
Boll Weevil

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

Susceptibility of Cotesia marginiventris (Cresson) (Hymenoptera: Braconidae) to Field Rates of Selected Cotton Insecticides2

1997 ◽  
Vol 32 (3) ◽  
pp. 303-310 ◽  
Author(s):  
P. Glynn Tillman ◽  
William Scott
Keyword(s):  
Methyl Parathion ◽  
Boll Weevil ◽  
Lower Mortality ◽  
Insect Control ◽  
Cotesia Marginiventris ◽  
Male And Female ◽  
Males And Females

The parasitoid Cotesia marginiventris (Cresson) was treated topically with minimum recommended field rates of formulated insecticides commonly used in cotton insect control. The 14 insecticides were acephate, azinphosmethyl, bifenthrin, cyhalothrin, cypermethrin, endosulfan, esfenvalerate, fipronil, methomyl, methyl parathion, oxamyl, profenofos, thiodicarb, and AC 303,630. Eleven of the 14 insecticides were extremely toxic to C. marginiventris, causing 80 to 100% mortality of adult wasps, whereas treatment with thiodicarb, oxamyl, and acephate resulted in lower mortality of C. marginiventris males and females. For both male and female C. marginiventris, thiodicarb and oxamyl were less toxic than acephate. Esfenvalerate was the least toxic pyrethroid for C. marginiventris females. Of the three insecticides used in boll weevil control (oxamyl, azinphosmethyl, and methyl parathion), oxamyl was the least toxic to C. marginiventris. Selective use of the insecticides which result in higher survival could facilitate conservation of C. marginiventris.

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