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Control of Striped Cucumber Beetle on Cantaloupe in Vincennes, In, 1993

Control of Striped Cucumber Beetle on Cantaloupe in Vincennes, In, 1993 Downloaded from https://academic.oup.com/amt/article-abstract/19/1/77/4639260 by DeepDyve user on 02 August 2020 E: VEGETABLE CROPS Arthropod Management Tests, Vol. 19 77 CABBAGE: Brassica oleracea L. 'Bravo' J. Whalen and M, Spellman (27E) Diamondback moth (DBM); Plutella xylostella (L.) Dept. of Entomology Cabbage looper (CL); Trichoplusia ni (Hiibner) University of Delaware Newark, DE 19717-1303 CONTROL OF LEPIDOPTEROUS LARVAE ON FALL CABBAGE, 1993: Cabbage transplants were planted on 16 Aug near Georgetown, DE. Two row plots, 20 ft long on 40 inch centers, were replicated 4 times in a randomized complete block design. Treatments were applied with a C0 pressurized wheelbarrow sprayer delivering 34 gal/acre at 40 psi. Applications were made on 24, 31 Aug; 7, 14, 21, 29 Sep and 5 Oct. Latron B-1956 spreader/sticker (0.06%) was added to all treatments on every spray date. Number of larvae/5 plants was recorded on 10, 16, 23 Sep and 1, 8 Oct. Yield (percent marketable heads) was taken on 8 Oct and defined as cabbage heads with no visible feeding and having at least 2 undamaged wrapper leaves. All treatments provided significantly better DBM control compared to the untreated plot except Dipel 2X and Larvin DF (.40 lb Al/acre and .60 lb Al/acre) on 8 Oct. All treatments provided significantly better CL control and percent marketable heads compared to the untreated plot. No phytotoxicity was observed. Rate lb Marketable " ** Treatment (AI)/acre 16 Sep 23 Sep 1 Oct 8 Oct heads Dipel 2X 1.0 lb." 0.25b 0.50b 0.25b 0.25ab 96.0a Xentari WDG 1.0 lb." 0.25b 0.00b 0.25b 0.00b 95.7a Stalker 2SC 0.15 0.00b 0.25b 0.50b 0.00b 100.0a Larvin 80DF 0.40 0.75b 1.50b 0.25b 0.25ab 88.3a Larvin 80DF 0.60 0.50b 1.00b 0.25b 0.50ab 90.2a Larvin 80DF 0.75 0.25b 1.25b 0.25b 0.00b 91.6a Ambush 2E 0.20 0.00b 0.00b 0.50b 0.00b 99.2a Karate IE 0.02 0.50b 0.25b 0.00b 0.00b 99.1a Fury 1.5EW 0.02 0.25b 0.25b 0.00b 0.00b 96.3a Untreated 4.50a 1.25a 20.3b 2.75a 3.75a Means within column followed by the same letter are not significantly different (P 0.05; Ryan's Q test). "Formulated material/acre. Rate lb Treatment (AI)/acre 10 Sep 16 Sep 23 Sep 1 Oct 8 Oct Dipel 2X 1.0 lb." 0.00b 2.25b 0.25c 0.25b 1.00b Xentari WDG 2.25b 1.0 1b." 0.00b 1.00b l.OObc 0.25b Stalker 2SC 0.15 0.25b 1.00b 0.50c 0.25b 0.75b Larvin 80DF 0.40 0.00b 4.75b 2.75b 0.50b 1.75b Larvin 80DF 0.60 0.00b 3.00b 2.25bc 0.25b 1.25b Larvin 80DF 0.75 0.25b 2.67b 1.00bc 0.25b 1.75b Ambush 2E 0.20 0.00b 0.00b 0.75c 0.00b 0.50b Karate IE 0.02 0.00b 0.75b 0.25c 0.25b 0.50b Fury 1.5EW 0.02 0.00b 1.50b 0.75c 0.00b 0.75b Untreated 3.75a 8.75a 4.50a 3.75a 5.00a Means within column followed by the same letter are not significantly different (P 0.05; Ryan's Q test). "Formulated material/acre. CANTALOUPE: Cucumis melo L„ 'Superstar' W. G. Buhler, G. E. Brust, and R. E. Foster (28E) Striped cucumber beetle (SCB); Acalymma vittatum (F.) Department of Entomology Purdue University W. Lafayette, IN 47907 CONTROL OF STRIPED CUCUMBER BEETLE ON CANTALOUPE IN VINCENNES, IN, 1993: Cantaloupe, variety Superstar', was transplanted at the 3 leaf stage on 28 Apr. Experimental units (plots) consisted of one row 60 ft long, 15 plants per row. Rows were 6 ft apart, lined with black plastic mulch and trickle irrigated. Treatments were arranged in a RCB design, replicated 4 times. Soil insecticides were applied on the day the plastic was laid, 5 days before transplants were set. Foliar sprays were applied on a weekly basis starting 5 May, except for Admire 2F, which was applied on a 2 wk schedule. A total of 8 weekly applications was made. All liquid soil insecticides were applied with a R&D C0 backpack sprayer, operating at 40 psi and delivering 30 gal/acre. Granular soil insecticides were applied via a Gandy box attached to the mulch laying machine. Foliar sprays were applied at 20 gal/acre at a pressure of 30 psi. Plots treated with Furadan 4F at a rate of 1 qt form./acre at planting, followed by alternating weekly sprays of Sevin 80S (1.25 lb/acre) and Thiodan 3EC (1 qt/acre) are designated in the treatment column as Furadan/Sevin/Thiodan. Beetle counts were taken on a per plant basis. Percentage of plants with bacterial wilt was recorded, 25 Jul, by checking for the presence of bacterial ooze. Yields Downloaded from https://academic.oup.com/amt/article-abstract/19/1/77/4639260 by DeepDyve user on 02 August 2020 78 Arthropod Management Tests, Vol. 19 E: VEGETABLE CROPS (weight of melons) were taken over a 4 week period starting on 2 Jul through 2 Aug. For presentation purposes, this has been condensed into: early yield (2 Jul-14 Jul), secondary yield (16 Jul-2 Aug) and total yield (sum of early and secondary yields). Beetle counts varied greatly between sampling dates allowing for little statistical separation. v 1U L ityj, ut^t^Lit^/i "" 6 VL yiv-iu iiit^iuua/ "' 6 Rate % plants 18 May with wilt Early Secondary Total Treatment form./acre 12 May 14 May Capture 2EC 0.04 lb 0.00a 0.00a 0.00a 1.2a 114.6a 288.3abc 402.9a Asana XL 5.8 oz 0.00a 0.21a 0.00a 0.0a 95.5abc 332.3bc 419.0a Ambush 2EC 6.4 oz 0.25ab 0.00a 0.00a 2.1a 111.2a 304.2abc 406.0a Marlate 50W 4.0 lb 1.25ab 0.2 lab 0.00a 4.8abc 70.3abc 273.9abc 344.2a Sevin XLR Plus 1 qt 1.25ab 0.00a 0.25a 2.8ab 51.5c 367.0c 418.5a Pounce 3.2EC 6.4 oz 1.25ab 0.00a 0.00a 2.4ab 108.0ab 296.5abc 404.5a Admire 2F-foliar 2.88 oz 1.50ab 0.2 lab 1.75a 1.1a 82.3abc 264.9abc 347.1a Thiodan 3EC 1 qt 1.50ab 0.28ab 0.50a 1.2a 83.4abc 308.8abc 403.4a Furadan/Sevin/Thiodan 1 qt/1.25 lb/1 qt 2.25ab 0.00a 1.00a 5.6abc 74.5abc 283.9abc 358.4a Sevin 80S 1.25 lb 2.25ab 0.34ab 1.00a 6.6abc 59.5bc 344.9bc 404.4a Diazinon AG500 2.50ab 0.28ab 0.50a 5.6abc 104.9ab 246.0ab 350.9a 1 Pt Furadan 4F 1 qt 2.75ab 0.3 lab 7.50b 10.7c 88.6abc 251.7abc 340.3a Furadan 15G 13.3 lb 3.25ab 0.13ab 1.75a 9.6c 96.3abc 252.8abc 347.8a Untreated 3.50ab 0.56b 1.50a 8.7bc 81.3abc 262.3abc 343.5a Fosthiazate 900E 6 lb 5.25b 0.21ab 2.75a 6.1 abc 108.5ab 212.0a 320.5a Admire 2F-soil applied 16 oz 9.75c 0.83c 3.50a 1.1a 90.3abc 269.0abc 357.8a Means within columns followed by the same letter are not signifies ntly different (P = 0.05; DMRT). CANTALOUPE: Cucumis melo L. 'Top Mark' C. C. Chu, T. J. Henneberry, and D. H. Akey (29E) Sweetpotato whitefly (SPWF); Bemisia tabaci (Gennadius) USDA-ARS-PWA Western Cotton Research Laboratory 4135 E. Broadway Phoenix, AZ 85040 INSECTICIDE CONTROL OF SWEETPOTATO WHITEFLY ON SPRING CANTALOUPE, 1992: Seeds of cantaloupe were planted at 5 seeds/hill and irrigated for germination on 25 Feb 1992. The experimental design was a randomized complete block with four replications. Each plot was two rows wide and 20 ft long. Rows were 40 inches apart. There were two unplanted buffer rows between plots and 20 ft alleys that separated blocks. A total of 15 chemicals or mixtures of chemicals was evaluated. An untreated control was included for comparison. Chemicals were foliar applied biweekly with a John Deere 700 High Cycle Sprayer from 17 Mar when plants were at the cotyledon stage to 5 Jun when melons were matured for harvest (6 applications). The sprayer was operated at 90 psi with three nozzles per row to deliver 20 gal of water/acre. One nozzle was positioned above the tops of plants and one on each side of the plants. Except at the cotyledon stage, the fourth expanded leaf from the terminal of main stem or branched vines was picked 1 day before and 2 days after each application. Sweetpotato whitefly (SPWF) immatures were counted from both sides of ten 12 cm leaf disks sampled from leaves from each plot, before and after each chemical application. All melons were harvested from all plots. Marketable melons were sized as jumbo, 27 and 36 and totaled. Plots treated with Admire, a mixture of Capture and Monitor, and a mixture of Danitol and Monitor had the lowest numbers of SPWF immatures/ cm and the highest number of marketable melons/acre. Plants treated with these chemicals had lusher vines than plants treated with other chemicals and the untreated plants. The Admire treated plants produced the most marketable cantaloupes (11,100/acre), followed by 10,300/acre from the plants treated with a mixture of Danitol and Monitor, and 9,300/acre from plants treated with a mixture of Capture and Monitor. Marketable melons Immatures/cm " Rate No. 1000/ Treatment (lb Al/acre) Eggs Nymphs acre Untreated 32.7 ab 5.7 ab 3.1 ef Aliette 80 WP 3.2 19.1 cde 6.4 a 3.5 ef Margosan-O 0.3% 0.04 21.4 cde 3.4 cd 4.5 c-f Capture 2 EC 0.08 23.9 bed 2.0 de 6.7 a-d Capture 2 EC + 0.08 9.3 ab Monitor 4 S 0.75 16.3 de 0.6 e Capture 2 EC + 0.08 M-pede 49% 1:100 water 15.8 de 2.5 cde 5.3 b-e 2.4 cde 8.0 abc Applaud 40 SC 0.38 23.1 bed Continued http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Arthropod Management Tests Oxford University Press

Control of Striped Cucumber Beetle on Cantaloupe in Vincennes, In, 1993

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Oxford University Press
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© 1994, Entomological Society of America
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2155-9856
DOI
10.1093/amt/19.1.77a
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Abstract

Downloaded from https://academic.oup.com/amt/article-abstract/19/1/77/4639260 by DeepDyve user on 02 August 2020 E: VEGETABLE CROPS Arthropod Management Tests, Vol. 19 77 CABBAGE: Brassica oleracea L. 'Bravo' J. Whalen and M, Spellman (27E) Diamondback moth (DBM); Plutella xylostella (L.) Dept. of Entomology Cabbage looper (CL); Trichoplusia ni (Hiibner) University of Delaware Newark, DE 19717-1303 CONTROL OF LEPIDOPTEROUS LARVAE ON FALL CABBAGE, 1993: Cabbage transplants were planted on 16 Aug near Georgetown, DE. Two row plots, 20 ft long on 40 inch centers, were replicated 4 times in a randomized complete block design. Treatments were applied with a C0 pressurized wheelbarrow sprayer delivering 34 gal/acre at 40 psi. Applications were made on 24, 31 Aug; 7, 14, 21, 29 Sep and 5 Oct. Latron B-1956 spreader/sticker (0.06%) was added to all treatments on every spray date. Number of larvae/5 plants was recorded on 10, 16, 23 Sep and 1, 8 Oct. Yield (percent marketable heads) was taken on 8 Oct and defined as cabbage heads with no visible feeding and having at least 2 undamaged wrapper leaves. All treatments provided significantly better DBM control compared to the untreated plot except Dipel 2X and Larvin DF (.40 lb Al/acre and .60 lb Al/acre) on 8 Oct. All treatments provided significantly better CL control and percent marketable heads compared to the untreated plot. No phytotoxicity was observed. Rate lb Marketable " ** Treatment (AI)/acre 16 Sep 23 Sep 1 Oct 8 Oct heads Dipel 2X 1.0 lb." 0.25b 0.50b 0.25b 0.25ab 96.0a Xentari WDG 1.0 lb." 0.25b 0.00b 0.25b 0.00b 95.7a Stalker 2SC 0.15 0.00b 0.25b 0.50b 0.00b 100.0a Larvin 80DF 0.40 0.75b 1.50b 0.25b 0.25ab 88.3a Larvin 80DF 0.60 0.50b 1.00b 0.25b 0.50ab 90.2a Larvin 80DF 0.75 0.25b 1.25b 0.25b 0.00b 91.6a Ambush 2E 0.20 0.00b 0.00b 0.50b 0.00b 99.2a Karate IE 0.02 0.50b 0.25b 0.00b 0.00b 99.1a Fury 1.5EW 0.02 0.25b 0.25b 0.00b 0.00b 96.3a Untreated 4.50a 1.25a 20.3b 2.75a 3.75a Means within column followed by the same letter are not significantly different (P 0.05; Ryan's Q test). "Formulated material/acre. Rate lb Treatment (AI)/acre 10 Sep 16 Sep 23 Sep 1 Oct 8 Oct Dipel 2X 1.0 lb." 0.00b 2.25b 0.25c 0.25b 1.00b Xentari WDG 2.25b 1.0 1b." 0.00b 1.00b l.OObc 0.25b Stalker 2SC 0.15 0.25b 1.00b 0.50c 0.25b 0.75b Larvin 80DF 0.40 0.00b 4.75b 2.75b 0.50b 1.75b Larvin 80DF 0.60 0.00b 3.00b 2.25bc 0.25b 1.25b Larvin 80DF 0.75 0.25b 2.67b 1.00bc 0.25b 1.75b Ambush 2E 0.20 0.00b 0.00b 0.75c 0.00b 0.50b Karate IE 0.02 0.00b 0.75b 0.25c 0.25b 0.50b Fury 1.5EW 0.02 0.00b 1.50b 0.75c 0.00b 0.75b Untreated 3.75a 8.75a 4.50a 3.75a 5.00a Means within column followed by the same letter are not significantly different (P 0.05; Ryan's Q test). "Formulated material/acre. CANTALOUPE: Cucumis melo L„ 'Superstar' W. G. Buhler, G. E. Brust, and R. E. Foster (28E) Striped cucumber beetle (SCB); Acalymma vittatum (F.) Department of Entomology Purdue University W. Lafayette, IN 47907 CONTROL OF STRIPED CUCUMBER BEETLE ON CANTALOUPE IN VINCENNES, IN, 1993: Cantaloupe, variety Superstar', was transplanted at the 3 leaf stage on 28 Apr. Experimental units (plots) consisted of one row 60 ft long, 15 plants per row. Rows were 6 ft apart, lined with black plastic mulch and trickle irrigated. Treatments were arranged in a RCB design, replicated 4 times. Soil insecticides were applied on the day the plastic was laid, 5 days before transplants were set. Foliar sprays were applied on a weekly basis starting 5 May, except for Admire 2F, which was applied on a 2 wk schedule. A total of 8 weekly applications was made. All liquid soil insecticides were applied with a R&D C0 backpack sprayer, operating at 40 psi and delivering 30 gal/acre. Granular soil insecticides were applied via a Gandy box attached to the mulch laying machine. Foliar sprays were applied at 20 gal/acre at a pressure of 30 psi. Plots treated with Furadan 4F at a rate of 1 qt form./acre at planting, followed by alternating weekly sprays of Sevin 80S (1.25 lb/acre) and Thiodan 3EC (1 qt/acre) are designated in the treatment column as Furadan/Sevin/Thiodan. Beetle counts were taken on a per plant basis. Percentage of plants with bacterial wilt was recorded, 25 Jul, by checking for the presence of bacterial ooze. Yields Downloaded from https://academic.oup.com/amt/article-abstract/19/1/77/4639260 by DeepDyve user on 02 August 2020 78 Arthropod Management Tests, Vol. 19 E: VEGETABLE CROPS (weight of melons) were taken over a 4 week period starting on 2 Jul through 2 Aug. For presentation purposes, this has been condensed into: early yield (2 Jul-14 Jul), secondary yield (16 Jul-2 Aug) and total yield (sum of early and secondary yields). Beetle counts varied greatly between sampling dates allowing for little statistical separation. v 1U L ityj, ut^t^Lit^/i "" 6 VL yiv-iu iiit^iuua/ "' 6 Rate % plants 18 May with wilt Early Secondary Total Treatment form./acre 12 May 14 May Capture 2EC 0.04 lb 0.00a 0.00a 0.00a 1.2a 114.6a 288.3abc 402.9a Asana XL 5.8 oz 0.00a 0.21a 0.00a 0.0a 95.5abc 332.3bc 419.0a Ambush 2EC 6.4 oz 0.25ab 0.00a 0.00a 2.1a 111.2a 304.2abc 406.0a Marlate 50W 4.0 lb 1.25ab 0.2 lab 0.00a 4.8abc 70.3abc 273.9abc 344.2a Sevin XLR Plus 1 qt 1.25ab 0.00a 0.25a 2.8ab 51.5c 367.0c 418.5a Pounce 3.2EC 6.4 oz 1.25ab 0.00a 0.00a 2.4ab 108.0ab 296.5abc 404.5a Admire 2F-foliar 2.88 oz 1.50ab 0.2 lab 1.75a 1.1a 82.3abc 264.9abc 347.1a Thiodan 3EC 1 qt 1.50ab 0.28ab 0.50a 1.2a 83.4abc 308.8abc 403.4a Furadan/Sevin/Thiodan 1 qt/1.25 lb/1 qt 2.25ab 0.00a 1.00a 5.6abc 74.5abc 283.9abc 358.4a Sevin 80S 1.25 lb 2.25ab 0.34ab 1.00a 6.6abc 59.5bc 344.9bc 404.4a Diazinon AG500 2.50ab 0.28ab 0.50a 5.6abc 104.9ab 246.0ab 350.9a 1 Pt Furadan 4F 1 qt 2.75ab 0.3 lab 7.50b 10.7c 88.6abc 251.7abc 340.3a Furadan 15G 13.3 lb 3.25ab 0.13ab 1.75a 9.6c 96.3abc 252.8abc 347.8a Untreated 3.50ab 0.56b 1.50a 8.7bc 81.3abc 262.3abc 343.5a Fosthiazate 900E 6 lb 5.25b 0.21ab 2.75a 6.1 abc 108.5ab 212.0a 320.5a Admire 2F-soil applied 16 oz 9.75c 0.83c 3.50a 1.1a 90.3abc 269.0abc 357.8a Means within columns followed by the same letter are not signifies ntly different (P = 0.05; DMRT). CANTALOUPE: Cucumis melo L. 'Top Mark' C. C. Chu, T. J. Henneberry, and D. H. Akey (29E) Sweetpotato whitefly (SPWF); Bemisia tabaci (Gennadius) USDA-ARS-PWA Western Cotton Research Laboratory 4135 E. Broadway Phoenix, AZ 85040 INSECTICIDE CONTROL OF SWEETPOTATO WHITEFLY ON SPRING CANTALOUPE, 1992: Seeds of cantaloupe were planted at 5 seeds/hill and irrigated for germination on 25 Feb 1992. The experimental design was a randomized complete block with four replications. Each plot was two rows wide and 20 ft long. Rows were 40 inches apart. There were two unplanted buffer rows between plots and 20 ft alleys that separated blocks. A total of 15 chemicals or mixtures of chemicals was evaluated. An untreated control was included for comparison. Chemicals were foliar applied biweekly with a John Deere 700 High Cycle Sprayer from 17 Mar when plants were at the cotyledon stage to 5 Jun when melons were matured for harvest (6 applications). The sprayer was operated at 90 psi with three nozzles per row to deliver 20 gal of water/acre. One nozzle was positioned above the tops of plants and one on each side of the plants. Except at the cotyledon stage, the fourth expanded leaf from the terminal of main stem or branched vines was picked 1 day before and 2 days after each application. Sweetpotato whitefly (SPWF) immatures were counted from both sides of ten 12 cm leaf disks sampled from leaves from each plot, before and after each chemical application. All melons were harvested from all plots. Marketable melons were sized as jumbo, 27 and 36 and totaled. Plots treated with Admire, a mixture of Capture and Monitor, and a mixture of Danitol and Monitor had the lowest numbers of SPWF immatures/ cm and the highest number of marketable melons/acre. Plants treated with these chemicals had lusher vines than plants treated with other chemicals and the untreated plants. The Admire treated plants produced the most marketable cantaloupes (11,100/acre), followed by 10,300/acre from the plants treated with a mixture of Danitol and Monitor, and 9,300/acre from plants treated with a mixture of Capture and Monitor. Marketable melons Immatures/cm " Rate No. 1000/ Treatment (lb Al/acre) Eggs Nymphs acre Untreated 32.7 ab 5.7 ab 3.1 ef Aliette 80 WP 3.2 19.1 cde 6.4 a 3.5 ef Margosan-O 0.3% 0.04 21.4 cde 3.4 cd 4.5 c-f Capture 2 EC 0.08 23.9 bed 2.0 de 6.7 a-d Capture 2 EC + 0.08 9.3 ab Monitor 4 S 0.75 16.3 de 0.6 e Capture 2 EC + 0.08 M-pede 49% 1:100 water 15.8 de 2.5 cde 5.3 b-e 2.4 cde 8.0 abc Applaud 40 SC 0.38 23.1 bed Continued

Journal

Arthropod Management TestsOxford University Press

Published: Jan 1, 1994

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