The lawn consisted primarily of Kentucky bluegrass (30%), annual bluegrass (25%), perennial ryegrass (25%), and assorted broad-leaved weeds (20%), maintained at 3.5 to 4.5 cm. Treatment plots were 2.6 x 2.6 m, replicated 5 times, arranged in a RCB design. All applications were made 11 Aug. Liquid formulations were applied by hand with watering cans, 3 liters water per plot. Granular formulations were applied using glass jars with perforated lids. Conditions at the time of application were as follows–air temperature 28°C; high overcast with moderate humidity; soil type, silty loam; soil pH 6.2; water pH, 5.6. All plots were watered in with ca. 0.6 cm irrigation immediately after application. There was an additional 0.6 cm of rainfall ca. 6 h after application. Product efficacy was evaluated 25 Sep (46 DAT) by cutting two 0.1 m2 samples out of each plot, dislodging soil with a hand trowel, and counting all grubs to a depth of 10 cm.
{"title":"Efficacy of Three Insecticides Against European Chafer Larvae, Home Lawn, 1992","authors":"P. Vittum","doi":"10.1093/iat/18.1.325","DOIUrl":"https://doi.org/10.1093/iat/18.1.325","url":null,"abstract":"\u0000 The lawn consisted primarily of Kentucky bluegrass (30%), annual bluegrass (25%), perennial ryegrass (25%), and assorted broad-leaved weeds (20%), maintained at 3.5 to 4.5 cm. Treatment plots were 2.6 x 2.6 m, replicated 5 times, arranged in a RCB design. All applications were made 11 Aug. Liquid formulations were applied by hand with watering cans, 3 liters water per plot. Granular formulations were applied using glass jars with perforated lids. Conditions at the time of application were as follows–air temperature 28°C; high overcast with moderate humidity; soil type, silty loam; soil pH 6.2; water pH, 5.6. All plots were watered in with ca. 0.6 cm irrigation immediately after application. There was an additional 0.6 cm of rainfall ca. 6 h after application. Product efficacy was evaluated 25 Sep (46 DAT) by cutting two 0.1 m2 samples out of each plot, dislodging soil with a hand trowel, and counting all grubs to a depth of 10 cm.","PeriodicalId":13691,"journal":{"name":"Insecticide and Acaricide Tests","volume":"420 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"1993-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"75769333","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
This experiment was conducted in a one-acre block of 6-yr-old trees on M7A, which measured 10 ft high and 7.5 ft wide and were planted 18 × 24 ft apart. The experimental design consisted of 4 single-tree plots in a randomized block design, with each replicate surrounded by at least one unsprayed tree on each side. Acaricides were applied on 15 Jun with an Agrotec handgun sprayer (model no. ASA0287) operated at 100 psi. Each tree received approximately 1 gal of spray (ca. 100 GPA). Other materials applied separately to the entire block throughout the season were Bayleton, Captan, Dodine, Ethrel, Javelin, Kocide, NAA, Nova, Solubor, Streptomycin, Supracide, Tenn-Cop, Topsin-M, and Ziram. In addition, Sevin and/or Lannate were applied to the entire block on 27 May, 8 and 25 Jun, and 9 Jul to exclude predators. European red mite control was evaluated by sampling 25 leaves from the periphery of each tree, removing mites with a mite-brushing machine, and counting motile stages with a binocular microscope.
{"title":"Acaricide Evaluation, 1992","authors":"H. Hogmire, T. Winfield, Robert Cheves, M. L. Day, C. Grove","doi":"10.1093/iat/18.1.18","DOIUrl":"https://doi.org/10.1093/iat/18.1.18","url":null,"abstract":"\u0000 This experiment was conducted in a one-acre block of 6-yr-old trees on M7A, which measured 10 ft high and 7.5 ft wide and were planted 18 × 24 ft apart. The experimental design consisted of 4 single-tree plots in a randomized block design, with each replicate surrounded by at least one unsprayed tree on each side. Acaricides were applied on 15 Jun with an Agrotec handgun sprayer (model no. ASA0287) operated at 100 psi. Each tree received approximately 1 gal of spray (ca. 100 GPA). Other materials applied separately to the entire block throughout the season were Bayleton, Captan, Dodine, Ethrel, Javelin, Kocide, NAA, Nova, Solubor, Streptomycin, Supracide, Tenn-Cop, Topsin-M, and Ziram. In addition, Sevin and/or Lannate were applied to the entire block on 27 May, 8 and 25 Jun, and 9 Jul to exclude predators. European red mite control was evaluated by sampling 25 leaves from the periphery of each tree, removing mites with a mite-brushing machine, and counting motile stages with a binocular microscope.","PeriodicalId":13691,"journal":{"name":"Insecticide and Acaricide Tests","volume":"42 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"1993-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"74603949","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}
Three raised, plastic-mulched beds on 1.8 m centers were divided into 4 replicate blocks. Each block was comprised often 4.3 m single-row plots separated by 0.6 m of buffer space. Five randomly selected plots in each block were planted on 28 Oct with three seed per planting hole spaced every 25 cm in double rows 25 cm apart. Remaining plots were planted with seed from the same lot which had been treated just prior to planting with Larvin 3.2, by mixing a small amount of seed with sufficient chemical to give a treatment rate of 1.4 L per 100 lbs seed. The number of seedlings was noted and plants were thinned to one stalk per planting hole. Five post-planting treatments were assigned randomly to the two seed treatment categories in each block. Beginning 11 Nov, plants were evaluated positive or negative for feeding damage to the whorl and 2 uppermost leaves.
{"title":"Seed Treatment and Foliar Insecticidal Control of Fall Armyworm in Florida Sweet Corn, 1991","authors":"P. Stansly, B. Cawley","doi":"10.1093/iat/18.1.125","DOIUrl":"https://doi.org/10.1093/iat/18.1.125","url":null,"abstract":"\u0000 Three raised, plastic-mulched beds on 1.8 m centers were divided into 4 replicate blocks. Each block was comprised often 4.3 m single-row plots separated by 0.6 m of buffer space. Five randomly selected plots in each block were planted on 28 Oct with three seed per planting hole spaced every 25 cm in double rows 25 cm apart. Remaining plots were planted with seed from the same lot which had been treated just prior to planting with Larvin 3.2, by mixing a small amount of seed with sufficient chemical to give a treatment rate of 1.4 L per 100 lbs seed. The number of seedlings was noted and plants were thinned to one stalk per planting hole. Five post-planting treatments were assigned randomly to the two seed treatment categories in each block. Beginning 11 Nov, plants were evaluated positive or negative for feeding damage to the whorl and 2 uppermost leaves.","PeriodicalId":13691,"journal":{"name":"Insecticide and Acaricide Tests","volume":"5 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"1993-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"74700781","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 study was carried out at the University of Minnesota, Agricultural Experiment Station, at Rosemount in cabbage transplanted 11 Jun. Treatments were replicated 4 times and arranged in a randomized complete block design. Each replicate consisted of 2 rows on 91.4 cm (36 inch) centers, measuring 9.14 m (30 ft) in length. All plots were separated by 2.14 m (7 ft) alleys on either side and by 10 ft alleys at each end. All treatments were applied using a Spirit, high-clearance sprayer, with 5 hollow-cone nozzles (TX-10) overlapping the 2 rows, and delivering 27 gal/acre at 45 psi.
{"title":"Insecticidal and Microbial Control of Lepidopteran Larvae in Minnesota Cabbage, 1992","authors":"D. W. Bartels, W. Hutchison, P. Bolin","doi":"10.1093/iat/18.1.90a","DOIUrl":"https://doi.org/10.1093/iat/18.1.90a","url":null,"abstract":"\u0000 This study was carried out at the University of Minnesota, Agricultural Experiment Station, at Rosemount in cabbage transplanted 11 Jun. Treatments were replicated 4 times and arranged in a randomized complete block design. Each replicate consisted of 2 rows on 91.4 cm (36 inch) centers, measuring 9.14 m (30 ft) in length. All plots were separated by 2.14 m (7 ft) alleys on either side and by 10 ft alleys at each end. All treatments were applied using a Spirit, high-clearance sprayer, with 5 hollow-cone nozzles (TX-10) overlapping the 2 rows, and delivering 27 gal/acre at 45 psi.","PeriodicalId":13691,"journal":{"name":"Insecticide and Acaricide Tests","volume":"13 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"1993-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"74738019","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}
Greenhouse grown tomato plants (cv. ‘Sunny’) were transplanted into a Bernow fine sandy loam soil covered with black plastic mulch on 11 May at the Wes Watkins A.R.E.C., Lane, OK. Plots were 2.7 m long and one row wide with rows spaced 91 cm apart and plants spaced 46 cm apart within rows. Plots were separated by 3 m buffers within rows to minimize spray drift. Plots were arranged in a randomized complete block design with four replications. Plants were trellised using the stake and weave method as needed and standard cultural practices were used throughout the trial. Treatments were applied on 30 Jun, 7, 14, 21, 28 Jul, 5, 13 and Aug using a CO2-powered backback sprayer. The sprayer, calibrated at 165 liters per acre, was equipped with two TX-18 spray nozzles spaced 45.6 cm apart. One pass down both sides of each plot was made with the boom positioned vertically to ensure adequate coverage of all foliage. Fruit was harvested on the following dates: 17, 23, 30 Jul, 7, 12, 17, 20 and 27 Aug. An average of 275 fruit per plot was produced during the harvest period. Each fruit was graded at harvest for TPW, TFW and thrips damage. Thrips damage was rated according to the following scale: 1 = none, 2 = slight, 3 = moderate, 4 = heavy and 5 = severe. Fruit rated three or higher were considered unmarketable. Fruit with any trace of TPW or TFW damage was considered unmarketable.
{"title":"Control of Tomato Pests on Tomatoes, Summer, 1992","authors":"S. Rowland, B. Cartwright, B. W. Roberts","doi":"10.1093/iat/18.1.176","DOIUrl":"https://doi.org/10.1093/iat/18.1.176","url":null,"abstract":"\u0000 Greenhouse grown tomato plants (cv. ‘Sunny’) were transplanted into a Bernow fine sandy loam soil covered with black plastic mulch on 11 May at the Wes Watkins A.R.E.C., Lane, OK. Plots were 2.7 m long and one row wide with rows spaced 91 cm apart and plants spaced 46 cm apart within rows. Plots were separated by 3 m buffers within rows to minimize spray drift. Plots were arranged in a randomized complete block design with four replications. Plants were trellised using the stake and weave method as needed and standard cultural practices were used throughout the trial. Treatments were applied on 30 Jun, 7, 14, 21, 28 Jul, 5, 13 and Aug using a CO2-powered backback sprayer. The sprayer, calibrated at 165 liters per acre, was equipped with two TX-18 spray nozzles spaced 45.6 cm apart. One pass down both sides of each plot was made with the boom positioned vertically to ensure adequate coverage of all foliage. Fruit was harvested on the following dates: 17, 23, 30 Jul, 7, 12, 17, 20 and 27 Aug. An average of 275 fruit per plot was produced during the harvest period. Each fruit was graded at harvest for TPW, TFW and thrips damage. Thrips damage was rated according to the following scale: 1 = none, 2 = slight, 3 = moderate, 4 = heavy and 5 = severe. Fruit rated three or higher were considered unmarketable. Fruit with any trace of TPW or TFW damage was considered unmarketable.","PeriodicalId":13691,"journal":{"name":"Insecticide and Acaricide Tests","volume":"18 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"1993-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"74885957","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 large trial was planted at the Staples Irrigation Station on 20 May. The navy beans followed last year’s corn with most cornstalks remaining on the soil surface. Plots were arranged in a randomized complete block design, replicated 4 times. Soil applications were banded in a 10 cm band over the row immediately after planting. Foliar materials were broadcast on 11 and 29 Jul using 2 liter total material on 0.0023 ha, each application, each treatment. Data on stand, moisture and yield were collected and final yields adjusted to a standard moisture. All plots were irrigated.
{"title":"Potato Leafhopper Control in Dry (Navy) Bean, 1992","authors":"D. Noetzel, B. Sheets","doi":"10.1093/iat/18.1.82a","DOIUrl":"https://doi.org/10.1093/iat/18.1.82a","url":null,"abstract":"\u0000 A large trial was planted at the Staples Irrigation Station on 20 May. The navy beans followed last year’s corn with most cornstalks remaining on the soil surface. Plots were arranged in a randomized complete block design, replicated 4 times. Soil applications were banded in a 10 cm band over the row immediately after planting. Foliar materials were broadcast on 11 and 29 Jul using 2 liter total material on 0.0023 ha, each application, each treatment. Data on stand, moisture and yield were collected and final yields adjusted to a standard moisture. All plots were irrigated.","PeriodicalId":13691,"journal":{"name":"Insecticide and Acaricide Tests","volume":"35 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"1993-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"73985642","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 for the control of CRS were evaluated spring, 1991 in Field 63 (18-yr-old Fisher and Washington navel oranges) located at the University of California’s Lindcove Field Station near Exeter, Calif. Insecticides were applied with a Bean handsprayer at 400 psi, complete coverage, approximately 1500 gpa. The field was divided into 10 blocks with one replicate of each treatment applied to a single tree within each block. Treatment trees were separated on all sides by single untreated trees. Five twig samples (gray wood indicating 2nd year growth, 23 cm in length) and 5 fruit were collected randomly from each of the sample trees and examined for 1st stage, 2nd stage, virgin and mature female stages of scale. Scale on the fruit were also examined for live larvae and pupae of C. bifasciata and eggs, larvae and pupae of A. melinus. Twig samples were collected pretreatment and both twig and fruit samples were collected 30 and 60 DAT. Leaf drop was measured weekly by counting the leaves that collected on a 60 X 90 cm paper tray placed under the canopy in the north side of treatment trees in five of the blocks. The population of the predatory mite, E. tularensis, was determined by collecting 20 leaves per tree (5 per quadrant) each week in 5 of the blocks until 60 DAT. Foliar treatments were applied on 14-15 May during the first generation of CRS crawler activity while the fruit was less than 20 mm in size.
1991年春季，在加利福尼亚州埃克塞特附近的加州大学林德考夫田间站的63号田(18年的费舍尔和华盛顿脐橙)对控制CRS的杀虫剂进行了评估。杀虫剂使用400 psi的Bean手动喷雾器施用，完全覆盖，约1500 gpa。田间被分成10个区块，每个区块内对一棵树进行一次重复处理。处理树被单株未处理树隔开。从每棵样本树上随机收集5个枝条样本(灰色木材代表第二年生长，长23厘米)和5个果实，检查鳞片的第一期、第二期、处女期和成熟雌期。果实上的鳞片还检测了双歧双歧夜蛾的活幼虫和蛹，以及黑纹夜蛾的卵、幼虫和蛹。枝条样品预处理，枝条和果实样品分别采集30和60个DAT。每周通过计算收集在60 X 90厘米纸盘上的叶子来测量落叶，这些纸盘放置在五个街区的处理树的北侧的树冠下。捕食性土拉螨(E. tularensis)的数量是通过每周收集5个街区的每棵树20片叶子(每象限5片)来确定的，直到60个数据。5月14-15日，在CRS第一代履带活动期间，果实小于20mm时进行叶面处理。
{"title":"California Red Scale Pesticide Efficacy Trial, 1992","authors":"E. Grafton-Cardwell, C. Reagan","doi":"10.1093/iat/18.1.73a","DOIUrl":"https://doi.org/10.1093/iat/18.1.73a","url":null,"abstract":"\u0000 Insecticides for the control of CRS were evaluated spring, 1991 in Field 63 (18-yr-old Fisher and Washington navel oranges) located at the University of California’s Lindcove Field Station near Exeter, Calif. Insecticides were applied with a Bean handsprayer at 400 psi, complete coverage, approximately 1500 gpa. The field was divided into 10 blocks with one replicate of each treatment applied to a single tree within each block. Treatment trees were separated on all sides by single untreated trees. Five twig samples (gray wood indicating 2nd year growth, 23 cm in length) and 5 fruit were collected randomly from each of the sample trees and examined for 1st stage, 2nd stage, virgin and mature female stages of scale. Scale on the fruit were also examined for live larvae and pupae of C. bifasciata and eggs, larvae and pupae of A. melinus. Twig samples were collected pretreatment and both twig and fruit samples were collected 30 and 60 DAT. Leaf drop was measured weekly by counting the leaves that collected on a 60 X 90 cm paper tray placed under the canopy in the north side of treatment trees in five of the blocks. The population of the predatory mite, E. tularensis, was determined by collecting 20 leaves per tree (5 per quadrant) each week in 5 of the blocks until 60 DAT. Foliar treatments were applied on 14-15 May during the first generation of CRS crawler activity while the fruit was less than 20 mm in size.","PeriodicalId":13691,"journal":{"name":"Insecticide and Acaricide Tests","volume":"37 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"1993-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"74562358","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}
‘Blue Vantage’ cabbage plants were transplanted on 25 Aug into a Bernow series fine, sandy loam soil at the Wes Watkins AREC in Lane, OK. Plots consisted of 2 12 ft rows on 36 inch centers with each treated plot separated by an untreated bed and 12 ft buffers within rows. Transplants were spaced 12 inches between plants within each row and fertilized at recommended levels and irrigated as needed through a trickle system. Treatments were replicated 4 times in a randomized complete block design. Insecticides were applied with a CO2-powered backpack sprayer equipped with 2 hollow cone TX-18 nozzles/row. The sprayer was calibrated to deliver 46.6 gal/acre at 2 mph using 40 psi. Treatments were applied on 17, 24, 29 Sep, 5, 13, 21, 27 Oct, and 2 Nov. Insecticide efficacy was assessed by counting CL larvae and eggs, parasitized CL, DBM larvae, YSA larvae, BAW larvae, CWW larvae, and CSCW larvae on 8 randomly chosen plants/replicate on 12 dates. Counts were always made prior to spraying on those dates that are the same. Plots were harvested as ready on 5, 12 and 19 Nov and individual heads were weighed and graded using the following scale: 1 = no wrapper leaf damage, no head damage; 2 = wrapper leaf damage, no head damage; 3 = wrapper leaf damage, light head damage; 4 = wrapper leaf damage, moderate to severe head damage. Heads rated 1 or 2 were considered marketable according to USDA standards. Data were transformed [log (x + 1)] before analysis where appropriate. Data were analyzed using analysis of variance (ANOVA, SAS 1988) and means were separated using Ryan’s Q test.
{"title":"Effectiveness of Bacillus Thvringiensis Formulations for Control of Lepidopterous Pests on Fall Cabbage, 1992","authors":"C. McKenzie, B. Cartwright","doi":"10.1093/iat/18.1.106","DOIUrl":"https://doi.org/10.1093/iat/18.1.106","url":null,"abstract":"\u0000 ‘Blue Vantage’ cabbage plants were transplanted on 25 Aug into a Bernow series fine, sandy loam soil at the Wes Watkins AREC in Lane, OK. Plots consisted of 2 12 ft rows on 36 inch centers with each treated plot separated by an untreated bed and 12 ft buffers within rows. Transplants were spaced 12 inches between plants within each row and fertilized at recommended levels and irrigated as needed through a trickle system. Treatments were replicated 4 times in a randomized complete block design. Insecticides were applied with a CO2-powered backpack sprayer equipped with 2 hollow cone TX-18 nozzles/row. The sprayer was calibrated to deliver 46.6 gal/acre at 2 mph using 40 psi. Treatments were applied on 17, 24, 29 Sep, 5, 13, 21, 27 Oct, and 2 Nov. Insecticide efficacy was assessed by counting CL larvae and eggs, parasitized CL, DBM larvae, YSA larvae, BAW larvae, CWW larvae, and CSCW larvae on 8 randomly chosen plants/replicate on 12 dates. Counts were always made prior to spraying on those dates that are the same. Plots were harvested as ready on 5, 12 and 19 Nov and individual heads were weighed and graded using the following scale: 1 = no wrapper leaf damage, no head damage; 2 = wrapper leaf damage, no head damage; 3 = wrapper leaf damage, light head damage; 4 = wrapper leaf damage, moderate to severe head damage. Heads rated 1 or 2 were considered marketable according to USDA standards. Data were transformed [log (x + 1)] before analysis where appropriate. Data were analyzed using analysis of variance (ANOVA, SAS 1988) and means were separated using Ryan’s Q test.","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":"78118819","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}
Two rates of NTN 33893 as a seed treatment were compared with carbofuran (Furadan 3 G) and an untreated check for control of RWW. The experimental design was a RCB with 4 replications. Plot size was 9 rows with 17.8 cm spacing X 4.88 m. Rice was drill-seeded at 123 kg seed/ha 13 May and emerged 19 May. Propanil and thiobencarb at 2.24 kg (AI)/ha each were applied 29 May for week control. Plots were temporarily flooded (flushed) 23 May and permanently flooded 4 Jun. Urea, 151.2 kg/ha, was applied in a 3-way split of 84 kg/ha on 4 Jun and 33.6 kg/ha on 10 and 22 Jul. Carbofuran was applied with a hand shaker 12 Jun. On 26 Jun and 3 Jul five 10.2 x 10.2 cm (diam by depth) soil cores were removed from each plot. Soil and plant roots were washed into 40-mesh screens. Screens were immersed in salt water, and RWW immatures were recovered and counted. The center 4 rows of plots were harvested on 13 Sep with a small plot combine. Reported yields were adjusted to 12% moisture.
将NTN 33893作为种子处理与呋喃(Furadan 3g)和未处理对照进行比较。试验设计为RCB，设4个重复。样地大小为9行，间距17.8 cm × 4.88 m。5月13日播种123公斤/公顷，5月19日出苗。5月29日，丙烯和硫虫威分别以2.24 kg (AI)/ hm2施用，作为周对照。5月23日临时淹水(冲洗)，6月4日永久淹水。6月4日施用尿素151.2 kg/ha, 3路分施，分别为84 kg/ha, 7月10日和22日施用33.6 kg/ha。6月12日用手摇器施用呋喃丹。6月26日和7月3日从每个地块取出5个10.2 × 10.2 cm(直径深度)的土芯。土壤和植物根被冲进40目筛网。筛管浸泡在盐水中，回收RWW未成熟物并进行计数。9月13日，用小型联合收割机收获了中心4排地块。报告的产量调整为12%的水分。
{"title":"Control of Rice Water Weevil with a Seed Treatment, 1991:","authors":"J. L. Bernhardt","doi":"10.1093/iat/18.1.265a","DOIUrl":"https://doi.org/10.1093/iat/18.1.265a","url":null,"abstract":"\u0000 Two rates of NTN 33893 as a seed treatment were compared with carbofuran (Furadan 3 G) and an untreated check for control of RWW. The experimental design was a RCB with 4 replications. Plot size was 9 rows with 17.8 cm spacing X 4.88 m. Rice was drill-seeded at 123 kg seed/ha 13 May and emerged 19 May. Propanil and thiobencarb at 2.24 kg (AI)/ha each were applied 29 May for week control. Plots were temporarily flooded (flushed) 23 May and permanently flooded 4 Jun. Urea, 151.2 kg/ha, was applied in a 3-way split of 84 kg/ha on 4 Jun and 33.6 kg/ha on 10 and 22 Jul. Carbofuran was applied with a hand shaker 12 Jun. On 26 Jun and 3 Jul five 10.2 x 10.2 cm (diam by depth) soil cores were removed from each plot. Soil and plant roots were washed into 40-mesh screens. Screens were immersed in salt water, and RWW immatures were recovered and counted. The center 4 rows of plots were harvested on 13 Sep with a small plot combine. Reported yields were adjusted to 12% moisture.","PeriodicalId":13691,"journal":{"name":"Insecticide and Acaricide Tests","volume":"29 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"1993-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"78145006","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}
Insecticide trials on bell and sweet peppers were conducted at Michigan State University Horticulture Teaching and Research Farm in 1992. Pepper seedlings were obtained from a local grower and transplanted into 6.1 m rows on 6 Jun, with 91.4 cm between row spacing and 35.6 cm between plant spacing. Five treatments were applied to both pepper varieties in a randomized block design with four replications. Treatments were applied to foliage using a hand held CO2 sprayer at 35 psi with a single nozzle at 40 gal/acre. Low corn borer activity led us to artificially infest our plots. European corn borer egg masses were obtained from the Corn Insect Lab at Ankeny, Iowa. Five randomly selected plants per replicate received ECB egg masses. The egg masses were pinned to the underside of the leaf through the mid rib, near a developing fruit. One egg mass per plant was attached 17 Aug and two egg masses per plant were attached 3 Sep. All treatments were applied on 18, 24, and 31 of Aug, and 6 Sep. Orthene 75 SP and MVP were sprayed on alternate weeks, beginning with Orthene 75 SP. Pepper fruits were destructively harvested on 18 Sep. Only peppers from the artificially infested plants were sampled, with no more than five fruit picked per pepper plant. Each fruit was cut open and inspected for ECB larvae. Fisher’s Protected LSD test at β = 0.01 was performed on the percent of pepper fruit contaminated with ECB larvae.
{"title":"Control of European Corn Borer on Two Varieties of Peppers, 1992","authors":"J. Jasinski, E. Grafius, P. Kolarik, B. Scriber","doi":"10.1093/iat/18.1.139a","DOIUrl":"https://doi.org/10.1093/iat/18.1.139a","url":null,"abstract":"\u0000 Insecticide trials on bell and sweet peppers were conducted at Michigan State University Horticulture Teaching and Research Farm in 1992. Pepper seedlings were obtained from a local grower and transplanted into 6.1 m rows on 6 Jun, with 91.4 cm between row spacing and 35.6 cm between plant spacing. Five treatments were applied to both pepper varieties in a randomized block design with four replications. Treatments were applied to foliage using a hand held CO2 sprayer at 35 psi with a single nozzle at 40 gal/acre. Low corn borer activity led us to artificially infest our plots. European corn borer egg masses were obtained from the Corn Insect Lab at Ankeny, Iowa. Five randomly selected plants per replicate received ECB egg masses. The egg masses were pinned to the underside of the leaf through the mid rib, near a developing fruit. One egg mass per plant was attached 17 Aug and two egg masses per plant were attached 3 Sep. All treatments were applied on 18, 24, and 31 of Aug, and 6 Sep. Orthene 75 SP and MVP were sprayed on alternate weeks, beginning with Orthene 75 SP. Pepper fruits were destructively harvested on 18 Sep. Only peppers from the artificially infested plants were sampled, with no more than five fruit picked per pepper plant. Each fruit was cut open and inspected for ECB larvae. Fisher’s Protected LSD test at β = 0.01 was performed on the percent of pepper fruit contaminated with ECB larvae.","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":"79809867","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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