Get 20M+ Full-Text Papers For Less Than $1.50/day. Start a 14-Day Trial for You or Your Team.

Learn More →

Insecticide Evaluation, 1996

Insecticide Evaluation, 1996 Downloaded from https://academic.oup.com/amt/article-abstract/22/1/3/4639706 by DeepDyve user on 21 July 2020 A: POME FRUITS Arthropod Management Tests, Vol. 22 3 APPLE: Malus domestica Borkhauser 'Rome' Henry W. Hogmire and Tim Winfield (4A) WVU Experiment Farm Rosy apple aphid (RAA); Dysaphis plantaginea (Passerini) Spirea aphid (SA); Aphis spiraecola Patch P. O. Box 609 European red mite (ERM); Panonychus ulmi (Koch) Kearneysville, WV 25430 Phone: (304) 876-6353 Spotted tentiform leafminer (STLM); Phyllonorycter blancardella (F.) FAX: (304) 876-6034 INSECTICIDE EVALUATION, 1996: This experiment was conducted in 3 miniblocks, each 1/3 acre, of 18-yr-old trees on M M 111 rootstock. Trees measured 15 ft. in height and 14 ft. in width and were planted at a spacing of 20 x 20 ft. The experimental design consisted of 6 single-tree replica­ tions per treatment, with 2 replications per mini-block in a randomized block design. Each replicate was surrounded by 1 unsprayed tree on each side. In­ secticides were applied as complete sprays to both sides of the trees with a Swanson DA500A airblast sprayer, which traveled at 2.3 mph and delivered a spray volume of 100 gpa. Dates of application were 25 Apr [pink (P)], 13 Ma y [petal fall (PF)], 30 May [first cover (1C)], 13 Jun [second cover (2C)], 26 Jun [third cover (3C)], 11 Jul [fourth cover (4C)], 25 Jul [fifth cover (5C)], 7 Aug [sixth cover (6C)], 21 Aug [seventh cover (7C)], and 5 Sep [eighth cover (8C)]. Other materials applied separately to all treatments were Agri-Mycin, COCS, Dithane, Nova, Penncozeb, Rubigan, and Ziram. Treatment effect was determined by counting insects on the periphery of test trees periodically during the season. RAA control was determined by counting colonies per tree. Control of SA was evaluated by counting aphids on the most infested leaf on each of 10 terminals per tree. Effect of treatments against ERM was deter­ mined by sampling 20 leaves/tree (5 replications), removing mites with a mite-brushing machine, and counting motile stages with a binocular microscope. Control of STLM was determined by counting all tissue-feeding mines during a 5 minute period per tree. All treatments, except for Guthion, provided excellent control of RAA under very light pest incidence. Provado and the middle and high rates of EXP80667A were very effective in controlling SA. N o treatments caused mite flare-ups. Provado applied at petal fall and second cover, and EXP80667A provided the most effective control of STLM. There was no difference in STLM control among rates of EXP80667A. No difference in pest control was observed between 2 formulations of Provado. >. K.rtr t UU1UII1CWUC ISI 1I11CMCU JCt ii/iciiiima i Rate Dates of ;c i>u. ort/mu Treatment form/acre IbA I application 23 May 4 Jun 12 Jun 17 Jun l.Endosulfan50WS B 1360 g 1.50 P,PF Savey 50WP 0.094 P 85 g Imidan 70WP 1360 g 2.10 PF,1C Confirm 70WP + 198 g 0.31 LatronB-195 6 474 ml 2C,3C,6C,7C Imidan 70WP 1022 g 1.58 4C, 5C 0b 11.7ab 98.3a 132.8a 2. EXP80667A 70WP 0.05 PF,2C,3C 0b 7.7bc 86. la b 29.5c 32 g 3. EXP80667A 70WP 0.075 PF.2C 0b 3.4cde 37.2bc 12.6d 48 g 4. EXP80667A 70WP 64 g 0.10 PF,2C,3C 0b 2.4def 18.5cd 13.8d 852 ml 0.67 5. Guthion 3F PF,1C,4C,5C Larvin 3.2SC 947 ml 0.80 1.7a 7.0bcd 76.5ab 72.7b 2C,3C,6C-8C 164 ml 0.07 6. Provado 1.6F PF, 1C Guthion 3F 852 ml 0.67 PF,1C,4C,5C Guthion 3F + 42 6 ml 0.34 0.7f 44.1 be Lannate 2.4LV 520 ml 0.33 2C,3C,6C-8C 0b 11.5d 7. Provado 70WP 45 g 0.07 PF,1C Guthion 3F 852 ml 0.67 PF,1C,4C,5C Guthion 3F + 42 6 ml 0.34 + Lannate 2.4LV 520 ml 0.33 2C,3C,6C-8C 0b 0.9ef 22.0cd 52.4bc 8. Provado 1.6F 164 ml 0.07 PF,2C Guthion 3F 852 ml 0.67 PF Confirm 70WP + 198 g 0.31 LatronB-1956 474 ml 1C,2C,4C,6C 0.2b 5.9bcd 32.le d 15.2d 9. Untreated check 1.7a 17.4a 98.7a 128.8a — — Means in a given column followed by the same letter are not significantly different (Fisher's Protected LSD, P s 0.05). Downloaded from https://academic.oup.com/amt/article-abstract/22/1/3/4639706 by DeepDyve user on 21 July 2020 4 Arthropod Management Tests, Vol. 22 A: POME FRUITS No. ERM/leaf No. STLM mines/5 min Rate Dates of Treatment form/acre lb AI application 11 Jul 30 Jul l.Endosulfan50WS B 1360g 1.50 P,PF Savey 50WP 85g 0.094 P Imidan 70WP 1360g 2.10 PF.1C Confirm 70WP + 198g 0.31 474ml 2C,3C,6C,7C 2.1b LatronB-1956 11.0a Imidan 70WP 1022g 1.58 4C,5C 2. EXP80667A 70WP 32g 0.05 PF,2C,3C 4.8ab 0.7c 3. EXP80667A 70WP 48g 0.075 PF,2C 7.6a 0.5c 64g 0.10 7.2a 0.8c 4. EXP80667A 70WP PF,2C,3C 852ml 0.67 5. Guthion 3F PF,1C,4C,5C Larvin 3.2SC 947ml 0.80 2C,3C,6C-8C 3.9ab 2.2b 6. Provado 1.6F 164ml 0.07 PF,1C Guthion 3F 852ml 0.67 PF,1C,4C,5C Guthion 3F + 426ml 0.34 Lannate 2.4LV 520ml 0.33 2C,3C,6C-8C 5.6a 1.8bc 7. Provado 70WG 45g 0.07 PF,1C Guthion 3F 852ml 0.67 PF,1C,4C,5C Guthion 3F + 426ml 0.34 Lannate 2.4LV 520ml 0.33 2C,3C,6C-8C 6.0a 2.5b 8. Provado 1.6F 164ml 0.07 PF,2C Guthion 3F 852ml 0.67 P F Confirm 70WP + 198g 0.31 LatronB-195 6 474ml 1C,2C,4C,6C 6.1a 0.8c 9. Untreated check 3.8ab 24.7a — — Means in a given column followed by the same letter are not significantly different (Fisher's Protected LSD, P s 0.05). APPLE: Malus domestica Borkhauser 'Delicious' Henry W. Hogmire and Tim Winfield (5A) European red mite (ERM); Panonychus ulmi (Koch) WV U Experiment Farm White apple leafhopper (WALH); Typhlocyba pomaria McAtee P.O. Box 609 Spotted tentiform leafminer (STLM); Phyllonorycter blancardella (F.) Kearneysville, WV 25430 Phone: (304) 876-6353 FAX: (304) 876-6034 ACARICIDE/INSECTICIDE EVALUATION, 1996: This experiment was conducted in a 2.1 acre block of 11-yr-old trees on M 7A rootstock. The trees measured 11.5 ft. in height and 10 ft. in width and were planted at a spacing of 12 x 18 ft. The experimental design consisted of 4 replications of 9 to 12-tree plots (3 rows x 3 or 4 trees/rows) in a randomized block design. Insecticides were applied as complete sprays to both sides of the trees with a Swanson DA500A airblast sprayer, which traveled at 2.3 mph and delivered a spray volume of 100 gpa. Dates (stages) of application were 18 Apr (tight cluster) for Apollo and Damoil, 22 Apr (pink) for Savey, and 13 May (1 week after petal fall) for remaining treatments. Other materials applied separately to all treatments were COCS, Dithane, Guthion, Lorsban, Nova, Penncap-M, Penncozeb, Rubigan, Topsin-M, and Ziram. Treatments were evaluated by taking arthropod pest counts from the periphery of the center tree in each plot periodically during the season. Control of ERM was evaluated by sampling 25 leaves/tree, removing mites with a mite-brushing machine, and counting motile stages with a binocular microscope. WAL H control was determined by counting nymphs on the underside of 25 leaves/tree. Treatment effect against STLM was determined by counting tissue-feeding mines observed during a 5 minute period/tree. Agri-Mek + Damoil and Savey provided the best control of ERM. Vydate, Carzol, and Agri-Mek + Damoil were the most effective treatments against first generation WALH, and Carzol provided the greatest reduction of the second generation. Agri-Mek + Damoil provided the best control of STLM. Agri-Mek + Damoil was more effective than Agri-Mek alone against all pests. No phytotoxicity was observed in any treatments. No. ERM Accumulated mite-days Rate Dates of Treatment form/acre lb AI application 6 Jun 26 Jun 17 Jul 1 Aug 6 Jun-1 Aug Apollo 50SC 118 ml 0.125 18 Apr 1.5bc 11.7a 7.0bc O.lab 382. la b Damoil 11.361 18 Apr 1.5bc 6.5ab 25.1a 0b 599.4a Savey 50WP 85 g 0.094 22 Apr 0.2d 0.7c 5.5cd 0b 113.6bc 0.0125 2.6abc 2.7b 14.3abc 0b 339.5ab Agri-Mek 0.15EC 316 ml 13 May Agri-Mek 0.15EC + 316 ml 0.0125 3788 ml 13 May 1.7abc 0.3c 1.8d O.lab 55.3c Damoil Vydate 2L 1421 ml 0.75 13 May l.Ocd 5.6ab 20.7ab O.lab 497.7a 454 g 0.92 9.0a 22.5a O.lab Carzol 92SP 13 May 4.0a 629.7a 5.5ab 15.6abc Untreated check 4.0a 0.2a 436.8a — — Means in a given column followed by the same letter are not significantly different (Fisher's Protected LSD, P < 0.05). http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Arthropod Management Tests Oxford University Press

Insecticide Evaluation, 1996

Loading next page...
 
/lp/oxford-university-press/insecticide-evaluation-1996-saDcz0LX8A

References (0)

References for this paper are not available at this time. We will be adding them shortly, thank you for your patience.

Publisher
Oxford University Press
Copyright
© 1997 Entomological Society of America.
eISSN
2155-9856
DOI
10.1093/amt/22.1.3
Publisher site
See Article on Publisher Site

Abstract

Downloaded from https://academic.oup.com/amt/article-abstract/22/1/3/4639706 by DeepDyve user on 21 July 2020 A: POME FRUITS Arthropod Management Tests, Vol. 22 3 APPLE: Malus domestica Borkhauser 'Rome' Henry W. Hogmire and Tim Winfield (4A) WVU Experiment Farm Rosy apple aphid (RAA); Dysaphis plantaginea (Passerini) Spirea aphid (SA); Aphis spiraecola Patch P. O. Box 609 European red mite (ERM); Panonychus ulmi (Koch) Kearneysville, WV 25430 Phone: (304) 876-6353 Spotted tentiform leafminer (STLM); Phyllonorycter blancardella (F.) FAX: (304) 876-6034 INSECTICIDE EVALUATION, 1996: This experiment was conducted in 3 miniblocks, each 1/3 acre, of 18-yr-old trees on M M 111 rootstock. Trees measured 15 ft. in height and 14 ft. in width and were planted at a spacing of 20 x 20 ft. The experimental design consisted of 6 single-tree replica­ tions per treatment, with 2 replications per mini-block in a randomized block design. Each replicate was surrounded by 1 unsprayed tree on each side. In­ secticides were applied as complete sprays to both sides of the trees with a Swanson DA500A airblast sprayer, which traveled at 2.3 mph and delivered a spray volume of 100 gpa. Dates of application were 25 Apr [pink (P)], 13 Ma y [petal fall (PF)], 30 May [first cover (1C)], 13 Jun [second cover (2C)], 26 Jun [third cover (3C)], 11 Jul [fourth cover (4C)], 25 Jul [fifth cover (5C)], 7 Aug [sixth cover (6C)], 21 Aug [seventh cover (7C)], and 5 Sep [eighth cover (8C)]. Other materials applied separately to all treatments were Agri-Mycin, COCS, Dithane, Nova, Penncozeb, Rubigan, and Ziram. Treatment effect was determined by counting insects on the periphery of test trees periodically during the season. RAA control was determined by counting colonies per tree. Control of SA was evaluated by counting aphids on the most infested leaf on each of 10 terminals per tree. Effect of treatments against ERM was deter­ mined by sampling 20 leaves/tree (5 replications), removing mites with a mite-brushing machine, and counting motile stages with a binocular microscope. Control of STLM was determined by counting all tissue-feeding mines during a 5 minute period per tree. All treatments, except for Guthion, provided excellent control of RAA under very light pest incidence. Provado and the middle and high rates of EXP80667A were very effective in controlling SA. N o treatments caused mite flare-ups. Provado applied at petal fall and second cover, and EXP80667A provided the most effective control of STLM. There was no difference in STLM control among rates of EXP80667A. No difference in pest control was observed between 2 formulations of Provado. >. K.rtr t UU1UII1CWUC ISI 1I11CMCU JCt ii/iciiiima i Rate Dates of ;c i>u. ort/mu Treatment form/acre IbA I application 23 May 4 Jun 12 Jun 17 Jun l.Endosulfan50WS B 1360 g 1.50 P,PF Savey 50WP 0.094 P 85 g Imidan 70WP 1360 g 2.10 PF,1C Confirm 70WP + 198 g 0.31 LatronB-195 6 474 ml 2C,3C,6C,7C Imidan 70WP 1022 g 1.58 4C, 5C 0b 11.7ab 98.3a 132.8a 2. EXP80667A 70WP 0.05 PF,2C,3C 0b 7.7bc 86. la b 29.5c 32 g 3. EXP80667A 70WP 0.075 PF.2C 0b 3.4cde 37.2bc 12.6d 48 g 4. EXP80667A 70WP 64 g 0.10 PF,2C,3C 0b 2.4def 18.5cd 13.8d 852 ml 0.67 5. Guthion 3F PF,1C,4C,5C Larvin 3.2SC 947 ml 0.80 1.7a 7.0bcd 76.5ab 72.7b 2C,3C,6C-8C 164 ml 0.07 6. Provado 1.6F PF, 1C Guthion 3F 852 ml 0.67 PF,1C,4C,5C Guthion 3F + 42 6 ml 0.34 0.7f 44.1 be Lannate 2.4LV 520 ml 0.33 2C,3C,6C-8C 0b 11.5d 7. Provado 70WP 45 g 0.07 PF,1C Guthion 3F 852 ml 0.67 PF,1C,4C,5C Guthion 3F + 42 6 ml 0.34 + Lannate 2.4LV 520 ml 0.33 2C,3C,6C-8C 0b 0.9ef 22.0cd 52.4bc 8. Provado 1.6F 164 ml 0.07 PF,2C Guthion 3F 852 ml 0.67 PF Confirm 70WP + 198 g 0.31 LatronB-1956 474 ml 1C,2C,4C,6C 0.2b 5.9bcd 32.le d 15.2d 9. Untreated check 1.7a 17.4a 98.7a 128.8a — — Means in a given column followed by the same letter are not significantly different (Fisher's Protected LSD, P s 0.05). Downloaded from https://academic.oup.com/amt/article-abstract/22/1/3/4639706 by DeepDyve user on 21 July 2020 4 Arthropod Management Tests, Vol. 22 A: POME FRUITS No. ERM/leaf No. STLM mines/5 min Rate Dates of Treatment form/acre lb AI application 11 Jul 30 Jul l.Endosulfan50WS B 1360g 1.50 P,PF Savey 50WP 85g 0.094 P Imidan 70WP 1360g 2.10 PF.1C Confirm 70WP + 198g 0.31 474ml 2C,3C,6C,7C 2.1b LatronB-1956 11.0a Imidan 70WP 1022g 1.58 4C,5C 2. EXP80667A 70WP 32g 0.05 PF,2C,3C 4.8ab 0.7c 3. EXP80667A 70WP 48g 0.075 PF,2C 7.6a 0.5c 64g 0.10 7.2a 0.8c 4. EXP80667A 70WP PF,2C,3C 852ml 0.67 5. Guthion 3F PF,1C,4C,5C Larvin 3.2SC 947ml 0.80 2C,3C,6C-8C 3.9ab 2.2b 6. Provado 1.6F 164ml 0.07 PF,1C Guthion 3F 852ml 0.67 PF,1C,4C,5C Guthion 3F + 426ml 0.34 Lannate 2.4LV 520ml 0.33 2C,3C,6C-8C 5.6a 1.8bc 7. Provado 70WG 45g 0.07 PF,1C Guthion 3F 852ml 0.67 PF,1C,4C,5C Guthion 3F + 426ml 0.34 Lannate 2.4LV 520ml 0.33 2C,3C,6C-8C 6.0a 2.5b 8. Provado 1.6F 164ml 0.07 PF,2C Guthion 3F 852ml 0.67 P F Confirm 70WP + 198g 0.31 LatronB-195 6 474ml 1C,2C,4C,6C 6.1a 0.8c 9. Untreated check 3.8ab 24.7a — — Means in a given column followed by the same letter are not significantly different (Fisher's Protected LSD, P s 0.05). APPLE: Malus domestica Borkhauser 'Delicious' Henry W. Hogmire and Tim Winfield (5A) European red mite (ERM); Panonychus ulmi (Koch) WV U Experiment Farm White apple leafhopper (WALH); Typhlocyba pomaria McAtee P.O. Box 609 Spotted tentiform leafminer (STLM); Phyllonorycter blancardella (F.) Kearneysville, WV 25430 Phone: (304) 876-6353 FAX: (304) 876-6034 ACARICIDE/INSECTICIDE EVALUATION, 1996: This experiment was conducted in a 2.1 acre block of 11-yr-old trees on M 7A rootstock. The trees measured 11.5 ft. in height and 10 ft. in width and were planted at a spacing of 12 x 18 ft. The experimental design consisted of 4 replications of 9 to 12-tree plots (3 rows x 3 or 4 trees/rows) in a randomized block design. Insecticides were applied as complete sprays to both sides of the trees with a Swanson DA500A airblast sprayer, which traveled at 2.3 mph and delivered a spray volume of 100 gpa. Dates (stages) of application were 18 Apr (tight cluster) for Apollo and Damoil, 22 Apr (pink) for Savey, and 13 May (1 week after petal fall) for remaining treatments. Other materials applied separately to all treatments were COCS, Dithane, Guthion, Lorsban, Nova, Penncap-M, Penncozeb, Rubigan, Topsin-M, and Ziram. Treatments were evaluated by taking arthropod pest counts from the periphery of the center tree in each plot periodically during the season. Control of ERM was evaluated by sampling 25 leaves/tree, removing mites with a mite-brushing machine, and counting motile stages with a binocular microscope. WAL H control was determined by counting nymphs on the underside of 25 leaves/tree. Treatment effect against STLM was determined by counting tissue-feeding mines observed during a 5 minute period/tree. Agri-Mek + Damoil and Savey provided the best control of ERM. Vydate, Carzol, and Agri-Mek + Damoil were the most effective treatments against first generation WALH, and Carzol provided the greatest reduction of the second generation. Agri-Mek + Damoil provided the best control of STLM. Agri-Mek + Damoil was more effective than Agri-Mek alone against all pests. No phytotoxicity was observed in any treatments. No. ERM Accumulated mite-days Rate Dates of Treatment form/acre lb AI application 6 Jun 26 Jun 17 Jul 1 Aug 6 Jun-1 Aug Apollo 50SC 118 ml 0.125 18 Apr 1.5bc 11.7a 7.0bc O.lab 382. la b Damoil 11.361 18 Apr 1.5bc 6.5ab 25.1a 0b 599.4a Savey 50WP 85 g 0.094 22 Apr 0.2d 0.7c 5.5cd 0b 113.6bc 0.0125 2.6abc 2.7b 14.3abc 0b 339.5ab Agri-Mek 0.15EC 316 ml 13 May Agri-Mek 0.15EC + 316 ml 0.0125 3788 ml 13 May 1.7abc 0.3c 1.8d O.lab 55.3c Damoil Vydate 2L 1421 ml 0.75 13 May l.Ocd 5.6ab 20.7ab O.lab 497.7a 454 g 0.92 9.0a 22.5a O.lab Carzol 92SP 13 May 4.0a 629.7a 5.5ab 15.6abc Untreated check 4.0a 0.2a 436.8a — — Means in a given column followed by the same letter are not significantly different (Fisher's Protected LSD, P < 0.05).

Journal

Arthropod Management TestsOxford University Press

Published: Jan 1, 1997

There are no references for this article.