Treatments were applied 19 Aug at Deerfield C.C. Experimental plots were arranged in a RCB design, replicated 4 times. Plot size was 8 X 8 ft. The average no. grubs in pretreat samples was 37.7/ft2 (73% Japanese beetle, 27% northern masked chafer). Granules were applied with a hand held glass jar shaker and liquids with a sprinkler can. Liquid formulations were applied in two liters of water per plot and all plots irrigated with about two liters of water about five min after application. Water pH was 6.9. Environmental and soil conditions at treatment were as follows: air temperature, 20°C; RH, 83%; overcast (fog); soil, moist to wet; soil temperature, 22°C (1 inch); pH, 4.55; organic matter, 10.10%; soil type, silt loam (sand 22.2%, silt, 64.1%, clay 13.7%); thatch layer 1/8 to 3/8 inches (compressed). Total precipitation during trial period was 3.90 inches. Plots were sampled 35 DAT with a cup changer (4.25 inches diam) to a depth of 2-3 inches; 4 random samples were taken per plot.
{"title":"Evaluation of Conventional and Experimental Insecticides to Control White Grubs on A Golf Course Fairway in Lewis Co., Wv, 1992","authors":"J. E. Weaver","doi":"10.1093/iat/18.1.327a","DOIUrl":"https://doi.org/10.1093/iat/18.1.327a","url":null,"abstract":"\u0000 Treatments were applied 19 Aug at Deerfield C.C. Experimental plots were arranged in a RCB design, replicated 4 times. Plot size was 8 X 8 ft. The average no. grubs in pretreat samples was 37.7/ft2 (73% Japanese beetle, 27% northern masked chafer). Granules were applied with a hand held glass jar shaker and liquids with a sprinkler can. Liquid formulations were applied in two liters of water per plot and all plots irrigated with about two liters of water about five min after application. Water pH was 6.9. Environmental and soil conditions at treatment were as follows: air temperature, 20°C; RH, 83%; overcast (fog); soil, moist to wet; soil temperature, 22°C (1 inch); pH, 4.55; organic matter, 10.10%; soil type, silt loam (sand 22.2%, silt, 64.1%, clay 13.7%); thatch layer 1/8 to 3/8 inches (compressed). Total precipitation during trial period was 3.90 inches. Plots were sampled 35 DAT with a cup changer (4.25 inches diam) to a depth of 2-3 inches; 4 random samples were taken per plot.","PeriodicalId":13691,"journal":{"name":"Insecticide and Acaricide Tests","volume":"11 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"1993-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"87437842","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
H. Hogmire, T. Winfield, Robert Cheves, M. L. Day, C. Grove
We conducted this experiment in a 5.4 acre block of 38-yr-old trees, which measured 16.5 ft in height and 23 ft in width and were planted 20 X 40 ft apart. Experimental design consisted of 6 single-tree plots (3 ‘Rome Beauty,’ 3 ‘Golden Delicious’) in a randomized block design. Insecticides were applied with a Swanson DA500A airblast sprayer, which traveled at 2.4 mph and delivered a volume of 100 gal/acre. Applications were made on 9 Apr (delayed dormant [DD]), 22 Apr (prepink [PP]), 14 May (petal fall [PF]), 28 May (first cover [1C]), 11 Jun (second cover [2C]), 25 Jun (third cover [3C]), 9 Jul (fourth cover [4C]), 22 Jul (fifth cover [5C]), 7 Aug (sixth cover [6C]), 20 Aug (seventh cover [7C]), and 2 Sep (eighth cover [8C]). An application error was made at DD resulting in a 1.3 to 8 fold overdose. Other materials applied separately to all treatments were Bayleton, Captan, Dodine, Kocide, NAA, Nova, Solubor, Streptomycin, and Topsin-M. Control of RAA was evaluated by counting colonies/tree.
我们在一个5.4英亩的38年树龄的树块上进行了这个实验，这些树高16.5英尺，宽23英尺，种植间距为20 X 40英尺。实验设计采用随机区组设计，包括6个单树地块(3个“罗马美人”，3个“金冠”)。使用Swanson DA500A空气喷射喷雾器喷洒杀虫剂，该喷雾器的速度为2.4英里/小时，喷施量为100加仑/英亩。申请于4月9日(延迟休眠[DD])、4月22日(预印[PP])、5月14日(花瓣落下[PF])、5月28日(第一期[1C])、6月11日(第二期[2C])、6月25日(第三期[3C])、7月9日(第四期[4C])、7月22日(第五期[5C])、8月7日(第六期[6C])、8月20日(第七期[7C])和9月2日(第八期[8C])提出。在DD处出现应用错误，导致1.3至8倍过量。其他分别应用于所有处理的材料有Bayleton、Captan、Dodine、Kocide、NAA、Nova、Solubor、Streptomycin和topcin - m。以菌落数/树评价RAA的防治效果。
{"title":"Insecticide Evaluation, 1992","authors":"H. Hogmire, T. Winfield, Robert Cheves, M. L. Day, C. Grove","doi":"10.1093/iat/18.1.19","DOIUrl":"https://doi.org/10.1093/iat/18.1.19","url":null,"abstract":"\u0000 We conducted this experiment in a 5.4 acre block of 38-yr-old trees, which measured 16.5 ft in height and 23 ft in width and were planted 20 X 40 ft apart. Experimental design consisted of 6 single-tree plots (3 ‘Rome Beauty,’ 3 ‘Golden Delicious’) in a randomized block design. Insecticides were applied with a Swanson DA500A airblast sprayer, which traveled at 2.4 mph and delivered a volume of 100 gal/acre. Applications were made on 9 Apr (delayed dormant [DD]), 22 Apr (prepink [PP]), 14 May (petal fall [PF]), 28 May (first cover [1C]), 11 Jun (second cover [2C]), 25 Jun (third cover [3C]), 9 Jul (fourth cover [4C]), 22 Jul (fifth cover [5C]), 7 Aug (sixth cover [6C]), 20 Aug (seventh cover [7C]), and 2 Sep (eighth cover [8C]). An application error was made at DD resulting in a 1.3 to 8 fold overdose. Other materials applied separately to all treatments were Bayleton, Captan, Dodine, Kocide, NAA, Nova, Solubor, Streptomycin, and Topsin-M. Control of RAA was evaluated by counting colonies/tree.","PeriodicalId":13691,"journal":{"name":"Insecticide and Acaricide Tests","volume":"34 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"1993-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"76005147","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
This experiment was conducted at the Ronny and Sammy Thomas Farm, Lawrenceville, VA, to evaluate tobacco aphid and tobacco flea beetle control on flue-cured tobacco with various systemic insecticides applied to the soil. Tobacco was transplanted into experimental plots on 29 Apr. Plots, 15.33 (4 rows) x 140 ft, were arranged in a RCB design with 8 treatments replicated 3 times. Pretransplant soil treatments of liquid insecticide form were applied with a CO2-pressurized tractor sprayer that delivered 36 gal/acre through 8004LP tips at 30 psi on 20 Apr. Soil treatments were immediately incorporated by double disking. After the other treatments had been incorporated, the Temik treatments were applied in 14-inch bands using a tractor-mounted Gandy granular applicator and were immediately covered with 6 inches of soil at bed formation. Orthene was applied in the transplant water (TPW) at 200 gal/acre. Nemacur 3EC at 1 gal/acre was applied to the entire test. Tobacco aphid populations were estimated on the upper 4 leaves of 10 plants in each plot 3 times from 6-8 wk after transplanting. Tobacco flea beetles and flea beetle feeding holes on the most damaged leaf were counted on 10 plants on the 2 center rows of each plot. Tobacco was harvested as it ripened, weighed, and graded by a USDA/AMS inspector. This information was used to calculate tobacco yield and quality. Data were analyzed by ANOVA and significantly different means were separted by DMRT (P = 0.05). Aphid count data were transformed to Log10 (x + 1) before ANOVA.
{"title":"Tobacco Aphid and Tobacco Flea Beetle Control with Soil Insecticides, 1992:","authors":"P. Semtner, William R. Wilkinson, Joseph Walton","doi":"10.1093/iat/18.1.291","DOIUrl":"https://doi.org/10.1093/iat/18.1.291","url":null,"abstract":"\u0000 This experiment was conducted at the Ronny and Sammy Thomas Farm, Lawrenceville, VA, to evaluate tobacco aphid and tobacco flea beetle control on flue-cured tobacco with various systemic insecticides applied to the soil. Tobacco was transplanted into experimental plots on 29 Apr. Plots, 15.33 (4 rows) x 140 ft, were arranged in a RCB design with 8 treatments replicated 3 times. Pretransplant soil treatments of liquid insecticide form were applied with a CO2-pressurized tractor sprayer that delivered 36 gal/acre through 8004LP tips at 30 psi on 20 Apr. Soil treatments were immediately incorporated by double disking. After the other treatments had been incorporated, the Temik treatments were applied in 14-inch bands using a tractor-mounted Gandy granular applicator and were immediately covered with 6 inches of soil at bed formation. Orthene was applied in the transplant water (TPW) at 200 gal/acre. Nemacur 3EC at 1 gal/acre was applied to the entire test. Tobacco aphid populations were estimated on the upper 4 leaves of 10 plants in each plot 3 times from 6-8 wk after transplanting. Tobacco flea beetles and flea beetle feeding holes on the most damaged leaf were counted on 10 plants on the 2 center rows of each plot. Tobacco was harvested as it ripened, weighed, and graded by a USDA/AMS inspector. This information was used to calculate tobacco yield and quality. Data were analyzed by ANOVA and significantly different means were separted by DMRT (P = 0.05). Aphid count data were transformed to Log10 (x + 1) before ANOVA.","PeriodicalId":13691,"journal":{"name":"Insecticide and Acaricide Tests","volume":"31 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"1993-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"76163153","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
‘Lady Bell’ pepper plants were transplanted on 24 May in Storrs, Connecticut. Plots consisted of 11 plants, 1.5 ft apart, in a single row, with an untreated guard row on each side. Seven treatments were replicated 3 times in a randomized complete block design. Rotenone, Dipel, Ryania and hydrated lime were applied on 28 Jul, 2, 11, 16, 23, 29 Aug, and 6 Sep. Orthene and Ambush were applied on alternate weeks beginning on 28 Jul. Hydrated lime was applied with a crank-style duster at 50 lb/acre immediately after wetting the foliage and fruit with water. Water and all other treatments were applied with a 3 gal CO2 backpack sprayer, operating at 25 psi and delivering 40 gal/acre. Plants were sprayed from the top and from each side, by hand with a single hollow cone nozzle. Fruit was harvested, counted, weighed, and opened to inspect for borer injury or infestation on 26 Jul, 2, 9, 16, 23, 29 Aug, 6, and 13 Sep.
{"title":"Bell Pepper: European Corn Borer Control, 1991:","authors":"R. Ashley","doi":"10.1093/iat/18.1.139","DOIUrl":"https://doi.org/10.1093/iat/18.1.139","url":null,"abstract":"\u0000 ‘Lady Bell’ pepper plants were transplanted on 24 May in Storrs, Connecticut. Plots consisted of 11 plants, 1.5 ft apart, in a single row, with an untreated guard row on each side. Seven treatments were replicated 3 times in a randomized complete block design. Rotenone, Dipel, Ryania and hydrated lime were applied on 28 Jul, 2, 11, 16, 23, 29 Aug, and 6 Sep. Orthene and Ambush were applied on alternate weeks beginning on 28 Jul. Hydrated lime was applied with a crank-style duster at 50 lb/acre immediately after wetting the foliage and fruit with water. Water and all other treatments were applied with a 3 gal CO2 backpack sprayer, operating at 25 psi and delivering 40 gal/acre. Plants were sprayed from the top and from each side, by hand with a single hollow cone nozzle. Fruit was harvested, counted, weighed, and opened to inspect for borer injury or infestation on 26 Jul, 2, 9, 16, 23, 29 Aug, 6, and 13 Sep.","PeriodicalId":13691,"journal":{"name":"Insecticide and Acaricide Tests","volume":"62 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"1993-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"78929269","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
‘La Rouge’ potato seed pieces were planted into a Krome very gravelly loam soil in a 0.2 ha research plot at the University of Florida’s Tropical Research and Education Center on 31 Jan. Fertilizer (1344 kg/ha of granular 8:16:16) was applied and incorporated into the soil on 21 Jan. The soil was fumigated with Terr-O-Gas (75% methyl bromide, 25% chloropicrin; 246 kg/ha) and covered with white on black plastic mulch on 22 Jan. Sencor 4 was applied (0.84 kg (AI)/ha) between the beds on 27 Jan for weed control. Plastic mulch was removed on 27 Jan and a furrow was dug in the center of each bed. Seed pieces were cut and dipped in 10 ppm Pro-Gib and then in Manzate 45 (0.26 kg/liter) on 29 Jan. Seed pieces were spaced 23 cm apart within beds on 1.8 m-center beds. Plants were irrigated twice per week (1.27 cm/irrigation) with overhead sprinklers. Four insecticide treatments and a nontreated check were compared. Treatments were: weekly applications of AC 303630 36 SC (0.11, 0.22, and 0.33 kg (AI)/ha); weekly applications of Guthion 2L (0.56 kg (AI)/ha) in combination with Lannate 1.8 L (0.50 kg (AI)/ha) and SunSpray Ultra-Fine Spray Oil (4.7 liters/ha); and nontreated check. All treatments were applied with Bond (2.0 liters/ha). Treatments were applied on six dates between 27 Feb and 2 Apr. Treatments were replicated 4 times in a randomized complete block design.
1月31日，在佛罗里达大学热带研究和教育中心0.2公顷的研究地块上，将“La Rouge”马铃薯种子片种植在Krome极砾壤土中，1月21日施用化肥(1344 kg/ha颗粒8:16:16)并将其纳入土壤中。土壤用terro - o气体(75%甲基溴，25%氯丁;1月27日，在床间施用senor 4 (0.84 kg (AI)/ha)防治杂草。1月27日拆除塑料覆盖物，并在每个床的中心挖沟。1月29日，切下种子片，用10ppm Pro-Gib浸泡，然后用Manzate 45 (0.26 kg/l)浸泡。种子片在1.8 m中心的床内间隔23 cm。采用顶置洒水装置每周灌溉植株2次(每次灌溉1.27 cm)。比较了四种杀虫剂处理和未处理的检查。处理为:每周施用AC 303630 36 SC(0.11、0.22和0.33 kg (AI)/ha);每周应用Guthion 2L (0.56 kg (AI)/ha)、lanate 1.8 L (0.50 kg (AI)/ha)和SunSpray超细喷雾油(4.7升/ha);还有未经处理的支票。所有处理均使用Bond (2.0 l /ha)。在2月27日至4月2日之间的6个日期应用了治疗。在随机完全区设计中重复了4次治疗。
{"title":"Management of Thrips on Potato, 1992","authors":"R. K. Jansson, S. Lecrone, J. Castillo","doi":"10.1093/iat/18.1.142","DOIUrl":"https://doi.org/10.1093/iat/18.1.142","url":null,"abstract":"\u0000 ‘La Rouge’ potato seed pieces were planted into a Krome very gravelly loam soil in a 0.2 ha research plot at the University of Florida’s Tropical Research and Education Center on 31 Jan. Fertilizer (1344 kg/ha of granular 8:16:16) was applied and incorporated into the soil on 21 Jan. The soil was fumigated with Terr-O-Gas (75% methyl bromide, 25% chloropicrin; 246 kg/ha) and covered with white on black plastic mulch on 22 Jan. Sencor 4 was applied (0.84 kg (AI)/ha) between the beds on 27 Jan for weed control. Plastic mulch was removed on 27 Jan and a furrow was dug in the center of each bed. Seed pieces were cut and dipped in 10 ppm Pro-Gib and then in Manzate 45 (0.26 kg/liter) on 29 Jan. Seed pieces were spaced 23 cm apart within beds on 1.8 m-center beds. Plants were irrigated twice per week (1.27 cm/irrigation) with overhead sprinklers. Four insecticide treatments and a nontreated check were compared. Treatments were: weekly applications of AC 303630 36 SC (0.11, 0.22, and 0.33 kg (AI)/ha); weekly applications of Guthion 2L (0.56 kg (AI)/ha) in combination with Lannate 1.8 L (0.50 kg (AI)/ha) and SunSpray Ultra-Fine Spray Oil (4.7 liters/ha); and nontreated check. All treatments were applied with Bond (2.0 liters/ha). Treatments were applied on six dates between 27 Feb and 2 Apr. Treatments were replicated 4 times in a randomized complete block design.","PeriodicalId":13691,"journal":{"name":"Insecticide and Acaricide Tests","volume":"1 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"1993-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"76507784","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Treatments were applied on 5 May to 2.0 X 2.0m plots, which were replicated 5 times and arranged in a RCB design. The plots were established on a golf course fairway in Rye, NY–annual bluegrass (65%), creeping bentgrass (35%), maintained at 1.3 cm. Granular materials were applied by hand using glass jars with perforated lids. Liquid materials were applied with watering cans, using 3 liters water per plot. The Turcam and Oftanol plots were watered in by hand (ca 0.5 cm) (pH 6.2) before the Orthene plots were treated. Soil temperature was 12°C (5 cm depth) at time of application. Product efficacy was evaluated on 2 Jun by removing 5 soil cores (10.6 cm diam) per plot and inspecting the cores under magnification in the Amherst laboratory (each plug was ca. 0.01 m2). At the time of sampling, the population was 21% 3rd instar, 27% 4th instar, 52% 5th instar.
{"title":"Efficacy of Several Insecticides Against Annual Bluegrass Weevils, Golf Course Fairway, 1992:","authors":"P. Vittum","doi":"10.1093/iat/18.1.316a","DOIUrl":"https://doi.org/10.1093/iat/18.1.316a","url":null,"abstract":"\u0000 Treatments were applied on 5 May to 2.0 X 2.0m plots, which were replicated 5 times and arranged in a RCB design. The plots were established on a golf course fairway in Rye, NY–annual bluegrass (65%), creeping bentgrass (35%), maintained at 1.3 cm. Granular materials were applied by hand using glass jars with perforated lids. Liquid materials were applied with watering cans, using 3 liters water per plot. The Turcam and Oftanol plots were watered in by hand (ca 0.5 cm) (pH 6.2) before the Orthene plots were treated. Soil temperature was 12°C (5 cm depth) at time of application. Product efficacy was evaluated on 2 Jun by removing 5 soil cores (10.6 cm diam) per plot and inspecting the cores under magnification in the Amherst laboratory (each plug was ca. 0.01 m2). At the time of sampling, the population was 21% 3rd instar, 27% 4th instar, 52% 5th instar.","PeriodicalId":13691,"journal":{"name":"Insecticide and Acaricide Tests","volume":"3 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"1993-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"81010897","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
The study was located on lawns of the Ohio Agricultural Research and Development Center at Wooster, Ohio. Insecticides were applied 22 Apr to plots 12.2 X 12.2 m arranged in RCB replicated 4 times. Granular insecticides were applied using a drop spreader and liquids using a CO2 sprayer with Teejet 8015 nozzles at 3.87 kg/cm2 pressure that delivered a volume of 1384 liter/ha. The experimental area received no posttreatment irrigation. Environmental conditions at time of treatment were: billbugs: overwintered adults active; turf: level, dry, 6.35 cm height, 75% Kentucky bluegrass, 15% Tall fescue, 10% broadleaf weeds; thatch: none; soil: moist, 58°F at 2.54 cm and 55°F at 7.62 cm; Weather: cloudy, 57°F, 5-16 km/h; water: pH 6.75. Efficacy data taken from the center 9.3 m2 of each plot Jul (78 DAT) were based on the number of live billbug larvae and pupae in 8, 10.8 cm diam samples from each plot.
这项研究是在俄亥俄州伍斯特的俄亥俄州农业研究与发展中心的草坪上进行的。4月22日，对12.2 X 12.2 m的地块施用杀虫剂，地块布置在重复4次的RCB中。颗粒状杀虫剂使用滴滴喷雾器，液体喷雾器使用Teejet 8015喷嘴，压力为3.87 kg/cm2，体积为1384升/公顷。试验区不进行后处理灌溉。处理时环境条件为:billbugs:越冬成虫活跃;草皮:平整，干燥，高度6.35 cm, 75%肯塔基蓝草，15%高羊茅，10%阔叶草;茅草:没有;土壤:湿润，2.54厘米处58°F, 7.62厘米处55°F;天气:多云，57华氏度，5-16公里/小时;水:pH值6.75。7月在每个小区9.3 m2 (78 DAT)的中心采集的药效数据是根据每个小区8、10.8 cm直径样本的活billbug幼虫和蛹的数量。
{"title":"Control of the Billbug Adults on A Lawn Area in Wayne County, 1992","authors":"K. Power, D. Shetlar, H. Niemczyk, M. Belcher","doi":"10.1093/iat/18.1.324","DOIUrl":"https://doi.org/10.1093/iat/18.1.324","url":null,"abstract":"\u0000 The study was located on lawns of the Ohio Agricultural Research and Development Center at Wooster, Ohio. Insecticides were applied 22 Apr to plots 12.2 X 12.2 m arranged in RCB replicated 4 times. Granular insecticides were applied using a drop spreader and liquids using a CO2 sprayer with Teejet 8015 nozzles at 3.87 kg/cm2 pressure that delivered a volume of 1384 liter/ha. The experimental area received no posttreatment irrigation. Environmental conditions at time of treatment were: billbugs: overwintered adults active; turf: level, dry, 6.35 cm height, 75% Kentucky bluegrass, 15% Tall fescue, 10% broadleaf weeds; thatch: none; soil: moist, 58°F at 2.54 cm and 55°F at 7.62 cm; Weather: cloudy, 57°F, 5-16 km/h; water: pH 6.75. Efficacy data taken from the center 9.3 m2 of each plot Jul (78 DAT) were based on the number of live billbug larvae and pupae in 8, 10.8 cm diam samples from each plot.","PeriodicalId":13691,"journal":{"name":"Insecticide and Acaricide Tests","volume":"47 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"1993-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"84827225","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Insecticides were applied on 24, 30, Aug and 3, 7, 12 Sep on ‘DPL 90’ cotton in Lonoke County, AR using a John Deere Hi-Cycle 6000 sprayer equipped with a CO2 powered system for spraying small plots. The sprayer was calibrated to deliver 10 gal/acre at 50 psi through TX-8 hollowcone nozzles on a 19-inch spacing. Plots were 9, 38-inch rows, 75 ft long arranged in a RCB design with 4 replications and a skip row between plots to discourage boll weevil movement between plots. Boll weevil ratings were made 4-5 DAT by examining 25 squares/plot for boll weevil damage. Bollworms were controlled using Bolstar 6 EC at 1.0 (AI)/acre in all plots. Plots were harvested using a John Deere 2-two picker, harvesting the center 2 rows of each plot.
{"title":"Control of Boll Weevils in Cotton, 1990","authors":"Donald R. Johnson, G. Studebaker","doi":"10.1093/iat/18.1.228","DOIUrl":"https://doi.org/10.1093/iat/18.1.228","url":null,"abstract":"\u0000 Insecticides were applied on 24, 30, Aug and 3, 7, 12 Sep on ‘DPL 90’ cotton in Lonoke County, AR using a John Deere Hi-Cycle 6000 sprayer equipped with a CO2 powered system for spraying small plots. The sprayer was calibrated to deliver 10 gal/acre at 50 psi through TX-8 hollowcone nozzles on a 19-inch spacing. Plots were 9, 38-inch rows, 75 ft long arranged in a RCB design with 4 replications and a skip row between plots to discourage boll weevil movement between plots. Boll weevil ratings were made 4-5 DAT by examining 25 squares/plot for boll weevil damage. Bollworms were controlled using Bolstar 6 EC at 1.0 (AI)/acre in all plots. Plots were harvested using a John Deere 2-two picker, harvesting the center 2 rows of each plot.","PeriodicalId":13691,"journal":{"name":"Insecticide and Acaricide Tests","volume":"8 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"1993-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"77333943","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
A. Younis, L. M. Rodriguez, J. Skias, T. E. Reagan
Insecticide sprays were applied 2 times to sugarcane fields located at Palo Alto Plantation near Donaldsonville, LA, to evaluate effects of full-season control of sugarcane borer infestations on non-target arthropods. Treatments were assigned to individual plots (ca. 1.5 ha each) according to a randomized complete block design with 4 replications. Spray concentrates were applied by aircraft on a 14.5 m swath in water at a rate of 18.7 liter finished formulation/ha/application (2 gal/acre). The number and size of nozzles, the density (drops/cm), and size (μ) of droplets for the water mixed sprays were 29, 8046, 23.5, and 250, respectively. Insecticide applications were initiated on 28 Jul, when sugarcane internodes were visible above ground and at least 5% of the stalks harbored 1st to 3rd stage larvae in the leafsheaths. A second application to all treatments was made on 16 Aug when that threshold level of infestation again was found in plots treated with Asana XL. Non-target arthropods were continuously monitored in all treatments throughout the study using pitfall traps (pint jars filled with 150 ml of 70% methanol and 25 ml of mineral oil) embedded on the row and covered by a 22 cm diam disc supported by a tripod 3 cm above the jar and soil surface. Two traps were situated centrally 22 m apart in each plot and changed biweekly from 30 Jul to 21 Sep.
{"title":"Effects on Non-Target Arthropods from Sugarcane Borer Control Large Plot Field Trial, 1992:","authors":"A. Younis, L. M. Rodriguez, J. Skias, T. E. Reagan","doi":"10.1093/iat/18.1.280","DOIUrl":"https://doi.org/10.1093/iat/18.1.280","url":null,"abstract":"\u0000 Insecticide sprays were applied 2 times to sugarcane fields located at Palo Alto Plantation near Donaldsonville, LA, to evaluate effects of full-season control of sugarcane borer infestations on non-target arthropods. Treatments were assigned to individual plots (ca. 1.5 ha each) according to a randomized complete block design with 4 replications. Spray concentrates were applied by aircraft on a 14.5 m swath in water at a rate of 18.7 liter finished formulation/ha/application (2 gal/acre). The number and size of nozzles, the density (drops/cm), and size (μ) of droplets for the water mixed sprays were 29, 8046, 23.5, and 250, respectively. Insecticide applications were initiated on 28 Jul, when sugarcane internodes were visible above ground and at least 5% of the stalks harbored 1st to 3rd stage larvae in the leafsheaths. A second application to all treatments was made on 16 Aug when that threshold level of infestation again was found in plots treated with Asana XL. Non-target arthropods were continuously monitored in all treatments throughout the study using pitfall traps (pint jars filled with 150 ml of 70% methanol and 25 ml of mineral oil) embedded on the row and covered by a 22 cm diam disc supported by a tripod 3 cm above the jar and soil surface. Two traps were situated centrally 22 m apart in each plot and changed biweekly from 30 Jul to 21 Sep.","PeriodicalId":13691,"journal":{"name":"Insecticide and Acaricide Tests","volume":"11 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"1993-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"77595248","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Insecticides were applied to mature trees in Fennville, MI (‘Red’ Block) at a rate of 125 gal/acre with an FMC CP 3000 sprayer. Treatments were arranged in randomized complete blocks of 12 trees, 2 replicate samples taken from within each block. Applications were made on 25 Aug and 4 Sep. Rubigan, Captan, and Nova were applied separately to all treatments. At the evaluations on 25 Aug, 2, 8, 16 and 24 Sep, samples consisted of 50 leaves per tree (100 per treatment) picked at random and brushed on a mite brushing machine. Mite predator adults (AF and ZM) were counted under a stereo microscope. WALH evaluations were made by picking 50 randomly selected leaves per replicate (100 per treatment) from the periphery of the tree and counting leafhopper nymphs.
{"title":"Apple, Effect of Sevin XLR on Predator Mites And White Apple Leafhopper, 1992","authors":"James W. Johnson, J. Wise","doi":"10.1093/iat/18.1.51a","DOIUrl":"https://doi.org/10.1093/iat/18.1.51a","url":null,"abstract":"\u0000 Insecticides were applied to mature trees in Fennville, MI (‘Red’ Block) at a rate of 125 gal/acre with an FMC CP 3000 sprayer. Treatments were arranged in randomized complete blocks of 12 trees, 2 replicate samples taken from within each block. Applications were made on 25 Aug and 4 Sep. Rubigan, Captan, and Nova were applied separately to all treatments. At the evaluations on 25 Aug, 2, 8, 16 and 24 Sep, samples consisted of 50 leaves per tree (100 per treatment) picked at random and brushed on a mite brushing machine. Mite predator adults (AF and ZM) were counted under a stereo microscope. WALH evaluations were made by picking 50 randomly selected leaves per replicate (100 per treatment) from the periphery of the tree and counting leafhopper nymphs.","PeriodicalId":13691,"journal":{"name":"Insecticide and Acaricide Tests","volume":"46 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"1993-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"91524669","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
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