scholarly journals Control of Insect Pests on Fall-Seeded Canola, 1997A

1998 ◽  
Vol 23 (1) ◽  
pp. 184-185
Author(s):  
D. E. Bragg
Keyword(s):  
Seed Treatment ◽  
Insect Pests ◽  
Full Bloom ◽  
Yield Data ◽  
Plant Materials ◽  
Pre Treatment ◽  
Western Regional ◽  
Sweep Net

Abstract Plots were established in a RCBD with 4 replicates of 20 X 30 ft at the USDA-ARS Western Regional Plant Materials Introduction Center at Central Ferry, WA on 10 Oct. Treatments were made at full bloom with a CO2 powered backpack sprayer at 20 gpa at 20 psi on 21 May except for Gaucho 75 ST applied as a seed treatment at planting. All sprayed insecticides were buffered to pH 5.0. Treatments were evaluated for pre-treatment count 215 DAE, 7 DAT (222 DAE), 12 DAT (227 DAE), and 25 DAT (250 DAE) by counting the number of CA colonies per m2 (6.6 linear ft of row) with mean number of CA per colony. CSPW counts were made on evaluation dates with 180° sweeps with a 14-inch sweep net. Counts of CSPW exit holes per 100 pods per replicate were made at harvest, and yield data were collected.

scholarly journals Control of Insects on Lentils, 1997

1998 ◽  
Vol 23 (1) ◽  
pp. 249-249
Author(s):  
D. E. Bragg ◽  
J. W. Burns
Keyword(s):  
Seed Treatment ◽  
Yield Data ◽  
Untreated Check ◽  
Pre Treatment

Abstract Plots were established 12 May near Albion, WA, on the Mills-Farr farm in a RCBD with 4 replicates of 6 X 10 ft. each. Seven insecticide treatments and an untreated check were used, with Gaucho 480 applied as a seed treatment at 0.5 and 1.0 oz (AI)/cwt. Foliar treatments were applied at the appearance of PA ca. 40-DAE using a CO2-powered backpack sprayer at 20 gpa at 20 psi. All treatments were rated by counts of PA per 20 cm terminal stem 4 per replicate at pre-treatment, PrCt, 2, 5, 7, 10, and 15 DAT. Counts of (TPB) damaged lentils/100 lentil sample per replicate were made at harvest. Yield data in oz lentils per replicate were collected by threshing through a stationary thresher.

scholarly journals Comparison Of 4 Varieties Of Spring Wheat For Resistance To Russian Wheat Aphid And Hessian Fly

1997 ◽  
Vol 22 (1) ◽  
pp. 435-435
Author(s):  
D.E Bragg
Keyword(s):  
Spring Wheat ◽  
Russian Wheat Aphid ◽  
Hessian Fly ◽  
Yield Data ◽  
Plant Materials ◽  
Harvest Data ◽  
Western Regional

Abstract Four Varieties of spring wheat (Alpowa, Centennial, ID488, and Wakanz) were seeded in a RCBD of 4 15 X 354 ft replicates per variety at the USDA-ARS Western Regional Plant Materials Introduction Center at Central Ferry, WA, on 6 May. Varieties were evaluated at 65 DAE (Feeks scale 10.5) for heads/ 10 plants, tiller/10 plants, % HF infested tillers, % RWA infested tillers, and % DR parasitized RWA. Harvest data was collected 9 Aug by cutting a 15 ft strip per replicate and weighing the grain on weight pads. Yield data per acre were calculated for each replicate. Data were subjected to ANOVA/LSD at P = 0.05.

scholarly journals Imidacloprid (GAUCHO 480) as an Aphicide in Winter Wheat, 1997

1998 ◽  
Vol 23 (1) ◽  
pp. 307-308
Author(s):  
D. E. Bragg ◽  
K. Tetrick
Keyword(s):  
Winter Wheat ◽  
Seed Treatment ◽  
Weather Conditions ◽  
Plant Materials ◽  
Untreated Check ◽  
Large Plot ◽  
Western Regional

Abstract Plots were seeded by large plot drill on 10 Oct 1996, in a RCBD with 5 replicates per treatment at the USDA-ARS Western Regional Plant Materials Introduction Center at Central Ferry, WA. Gaucho 480 was applied at 2 rates as a seed treatment insecticide at 0.5 and 1.0 oz (AI)/cwt. Lorsban 4 E SG was applied topically by sprayer at 26 d after emergence (DAE) on 7 Nov due to weather conditions prior to that date. An untreated check was established at planting.

scholarly journals Crop Response to Leaf and Seed Applications of the Biostimulant ComCat® under Stress Conditions

Agronomy ◽  
2021 ◽  
Vol 11 (6) ◽  
pp. 1161
Author(s):  
Roland Gerhards ◽  
Fructueuse N. Ouidoh ◽  
André Adjogboto ◽  
Vodéa Armand Pascal Avohou ◽  
Berteulot Latus Sètondji Dossounon ◽  
...  
Keyword(s):  
Seed Treatment ◽  
Crop Production ◽  
Field Experiments ◽  
Nutrient Deficiency ◽  
Natural Compounds ◽  
Application Rate ◽  
Winter Barley ◽  
Block Designs ◽  
Crop Response ◽  
Yield Data

Although clear evidence for benefits in crop production is partly missing, several natural compounds and microorganisms have been introduced to the market as biostimulants. They are supposed to enhance nutrient efficiency and availability in the rhizosphere, reduce abiotic stress, and improve crop quality parameters. Biostimulants often derive from natural compounds, such as microorganisms, algae, and plant extracts. In this study, the commercial plant extract-based biostimulant ComCat® was tested in two field experiments with maize in the communities of Banikoara and Matéri in Northern Benin and six pot experiments (four with maize and two with winter barley) at the University of Hohenheim in Germany. Maize was grown under nutrient deficiency, drought, and weed competition, and winter barley was stressed by the herbicide Luximo (cinmethylin). ComCat® was applied at half, full, and double the recommended field rate (50, 100, and 200 g ha−1) on the stressed and unstressed control plants as leaf or seed treatment. The experiments were conducted in randomized complete block designs with four replications. The above-ground biomass and yield data of one experiment in Benin were collected. The biostimulant did not promote maize and winter barley biomass production of the unstressed plants. When exposed to stress, ComCat@ resulted only in one out of eight experiments in higher barley biomass compared to the stressed treatment without ComCat® application. There was a reduced phytotoxic effect of cinmethylin after seed treatment with ComCat®. Crop response to ComCat® was independent of the application rate. Basic and applied studies are needed to investigate the response of crops to biostimulants and their mechanisms of action in the plants before they should be used in practical farming.

Comparison of pre-treatments for inducing germination in highly dormant wheat genotypes

2003 ◽  
Vol 83 (4) ◽  
pp. 729-735 ◽  
Author(s):  
M. A. Matus-Cádiz ◽  
P. Hucl
Keyword(s):  
Seedling Growth ◽  
Biomass Yield ◽  
Triticum Aestivum L ◽  
Potassium Nitrate ◽  
Dormancy Breaking ◽  
Yield Data ◽  
Breeding Populations ◽  
Breaking Dormancy ◽  
Seedling Length ◽  
Pre Treatment

An effective dormancy-breaking method may be of interest to wheat (Triticum aestivum L.) breeders selecting for increased seed dormancy prior to advancing their populations in greenhouse grow-outs. The objective of this study was to identify an effective pre-treatment for breaking dormancy in wheat that did not result in seedling etiolation. In 2000, eight dormant (W98616, line 211, EMDR-4, EMDR-9, EMDR-14, RL4137, Columbus, and AC Domain) and one nondormant line (Roblin) were grown at two locations in Saskatchewan. Seeds were: (i) stored for zero to 21 wks at 24°C before incubating at 20°C for 7 d; (ii) incubated at 5, 10, 15, 20, and 25°C for 14 d; and (iii) treated with gibberellic acid (GA3) (0.0006 and 0.0014 M), potassium nitrate (KNO3) (0.01 and 0.02 M), chilling, heating, chilling with 0.01 M KNO3, and heating with 0.01 M KNO3 before incubating at 10°C for 14 d. Seedling growth was observed in a duplicated growth chamber experiment. Seedling length, first inter-node length, and biomass yield data were collected from plants grown from seeds treated with four effective pretreatments. Data were subjected to an ANOVA. Six to 18 weeks of storage at 24°C were required to break the dormancy (≥ 95% germination) in dormant genotypes. Incubation at 10°C was the most effective temperature for promoting germination in dormant seeds after 10d of testing. Four pre-treatments including 0.0006 M GA3, 0.0014 M GA3, chilling with 0.01 M KNO3, and heating with 0.01 M KNO3 led to ≥ 95% germination within 10 d of testing. Only GA3 treatments were associated with etiolated seedling growth. Heating with 0.01 M KNO3 or chilling with 0.01 M KNO3, applied before incubating at 10°C in darkness, may be of interest to breeders selecting for increased dormancy before advancing breeding populations in greenhouse grow-outs. Key words: Triticum, dormancy, nitrate, chilling, heating, etiolated seedling

Seed Treatment Combined with a Spot Application of Clothianidin Granules Prolongs the Efficacy of Controlling Piercing–Sucking Insect Pests in Cotton Fields

2017 ◽  
Vol 65 (36) ◽  
pp. 8083-8092 ◽  
Author(s):  
Zhengqun Zhang ◽  
Yunhe Zhao ◽  
Yao Wang ◽  
Beixing Li ◽  
Jin Lin ◽  
...  
Keyword(s):  
Seed Treatment ◽  
Insect Pests ◽  
Cotton Fields

scholarly journals Response of growth and yield of two soybean varieties to seed pre-treatment applications

2021 ◽  
Vol 883 (1) ◽  
pp. 012052
Author(s):  
N Herawati ◽  
A R Aisah ◽  
I Mardian ◽  
B N Hidayah ◽  
B T R Erawati
Keyword(s):  
Plant Height ◽  
Seed Treatment ◽  
Seed Quality ◽  
Block Design ◽  
Growth And Yield ◽  
Agronomic Crops ◽  
Randomized Block Design ◽  
Two Factors ◽  
Pre Treatment ◽  
Four Levels

Abstract Plant growth is influenced by seed quality. Seeds need to be treated to prevent pest and disease disorders or to increase seed germination. Soybean planting was carried out in this study by the treatment of varieties and seed pre-treatment application before planting. The study aimed to measure the growth and yield of soybeans by varieties and seed treatment before planting, carried out in the Village of Nggembe, District of Bolo, Bima Regency. The study used factorial randomized block design with two factors. The first factor was soybean varieties consisting of two levels, namely Devon and Dena varieties, and the second factor was the application of pre-planting seed treatments consisting of four levels namely Cruiser, Marshall, Agrisoy, and without seed treatment, each treatment was repeated three times. Observations were made on the performance of agronomic crops and soybean yields. The results showed that the treatment of soybean varieties and the application of seed treatment had a significant influence on plant height and soybean productivity, and both treatments had interactions on parameters of plant height, number of filled pods, weight of 100 seeds, and soybean productivity with the best results successively produced by a combination of Devon-Control, Devon-Marshall, Devon-Agrisoy, and Dena-Cruiser.

scholarly journals Efficacy of Synthetic Pesticides Against Thrips, Thrips tabaci Lindeman (Thysanoptera: Thripidae) on Okra Abelmoschus esculentus (L.) Moench

2021 ◽  
Vol 13 (9) ◽  
pp. 148
Author(s):  
Hira Mannan ◽  
Qurban Ali Nahiyoon ◽  
Jilian Li
Keyword(s):  
Insect Pests ◽  
Thrips Tabaci ◽  
Abelmoschus Esculentus ◽  
Vegetable Crops ◽  
Vegetable Crop ◽  
Agronomic Crops ◽  
Wide Range ◽  
Field Efficacy ◽  
Synthetic Pesticides ◽  
Pre Treatment

Okra (Abelmoschus esculentus L.) is an essential vegetable crop with good nutritional significance. Insect pests are the major threat for poor production of the okra crop. Thrips of vegetable crops are known to be serious pests on a wide range of fruit, vegetable, flower, and agronomic crops. The present field study was carried out to know the efficacy of different insecticides (acetamiprid 19% weightable water (ww), lambda 25% ww, colarphipare 32% ww, lambda 2.5% ww and abamectin 1.3% ww) against Thrips, Thrips tabaci (Lindeman) on okra crop during the year 2019, and observations against T. tabaci (Lindeman) were recorded after 24 hrs, 48 hrs, 72 hrs and 07 days of each spray in all the treatments. The pre-treatment count of thrips on okra was non-significant (P > 0.05); while the evaluated efficacy of different insecticides against thrips was significant (P < 0.01). It was noted that all the insecticides showed their highest efficacy after 7 days of spray and acetamiprid 19% weightable water (ww) was more efficient to combat the T. tabaci as compared to other pesticides that produced field efficacy of 73.92 and 74.91% against thrips after 7 days of 1st and 2nd spray respectively. Abamectin, 1.3% ww, was reasonably successful, yielding 53.81 and 56.66% field efficacy against T. tabaci (Lindeman) after 7 days of first and second spray. Also, moderately effective was colarphipare 32% ww, which developed field effectiveness of 56.41 and 61.49% against T. tabaci (Lindeman) after 7 days of first and second spray, respectively.

scholarly journals ECONOMIC PROFITABILITY OF THE UTILIZATION OF HOMEMADE ORGANIC PESTICIDE FOR SMALL SCALE PRODUCTION OF Brassica Napus L. Varchinensis (PECHAY)

2019 ◽  
Vol 7 (6) ◽  
pp. 56-66
Author(s):  
Steven A. Loneria ◽  
Eunice L. Lluz
Keyword(s):  
Brassica Napus ◽  
Insect Pests ◽  
Block Design ◽  
Post Treatment ◽  
Small Scale ◽  
Hot Pepper ◽  
Scale Production ◽  
Brassica Napus L ◽  
Effective Level ◽  
Pre Treatment

The study focused on the economic profitability of the utilization of homemade organic pesticide for small scale production of Brassica napus L. varchinensis (Pechay). An experiment was undertaken at the Palayamanan Program at the University of Eastern Philippines to determine the effectiveness of homemade organic pesticide in controlling or preventing insect infestation in Pechay, to find out the effective level of this homemade pesticide and to determine the economic profitability of using homemade organic pesticide and insecticide. To explore the use of homemade extract from garlic, Allium sativum L., hot pepper, Capsicum frutescens L., vinegar and mineral oil in the management of insect pests of Pechay. The design used was the randomized complete block design (RCBD) and the data gathered were statistically analyzed using ANOVA and DMRT at 5% level of significant. There were five treatments made up of 50% extracted organic insecticide diluted in 500ml and 1 litter of water  treatment before the insects will attack (pre–treatment) in weekly intervals and separate application of the same formulation of  the treatment after the insect will attack (post-treatment) two days interval and control without any treatment. The result of the study showed that those that gained higher profitable weight in treatment plots were the post – treatment.

scholarly journals Reduction in the content of antinutritional substances in pea seeds (Pisum sativum L.) by different treatments

2011 ◽  
Vol 50 (No. 11) ◽  
pp. 519-527 ◽  
Author(s):  
R. Dvořák ◽  
A. Pechová ◽  
L. Pavlata ◽  
J. Filípek ◽  
J. Dostálová ◽  
...  
Keyword(s):  
Pisum Sativum ◽  
Seed Treatment ◽  
Production Traits ◽  
Pisum Sativum L ◽  
Heat Treated ◽  
Pea Seeds ◽  
Reactor Temperature ◽  
Pre Treatment ◽  
Pea Seed ◽  
Representative Samples

The goal of the trial was to reduce the content of antinutritional substances in pea (Pisum sativum L.) seeds in order to enhance its use in livestock nutrition. A variety of field pea (Pisum sativum L.) with a high content of antinutritional substances and favourable production traits (Gotik) was chosen. Native and heat-treated pea seeds were used to collect representative samples (n = 6) for analytical purposes. The technology (V-0 technology, Czech patent No. 285745) was further modified by adjusting the reactor temperature, the duration of exposure to that temperature, and the duration of ageing of the material treated in this way (V-I and V-II technologies). The methodology of treatment is based on exposing pea seeds to vapour, organic acids and selected oxides.The monitored parameters included antinutritional substances. As far as the antinutritional substances were concerned, the content of trypsin inhibitors in native pea seeds (P) was around 15.4 ± 0.5 TIU. After treatment with technologies V-0, V-I, and V-II its activity dropped by 83.8, 80.5 and 83.8%, respectively. The pre-treatment titre of lectins (P) was 717 ± 376. It dropped by 70.3, 35.7 and 73.2% after treatment with technologies V-0, V-I and V-II, respectively. The content of tannins measured by the amount of gallic acid in native pea seeds was 49.1 ± 2.7 mg per kg. It dropped by 41.4, 32.0 and 46.2% after the application of the above-mentioned technologies. The content of indigestible oligosaccharides causing flatulence was less affected by the treatments. The pre-treatment content of raffinose was 9.5 ± 0.5 g/kg. The drop associated with the treatment was 9.5, 6.3 and 10.5%, respectively. The pre-treatment content of stachyose was 21.4 ± 0.8 g/kg and after treatment with technologies V-0 and V-II it dropped by 7.0% and by 16.4%, respectively. The application of technology V-I did not result in a drop in the content of stachyose. The content of verbascose in native pea seeds was 16.1 g/kgand the treatment with technologies V-0; V-I and V-II resulted in a drop by 7.5, 5.6 and 20.5%, respectively. As for the detected phenolic acids, with the exception of caffeic acid, not a drop, but an increase in their content was recorded. Isoflavone oestrogens such as daidzein and genistein also recorded a small increase in their content. The results of the trial lead us to conclude that the above-described methods of pea seed treatment, especially the V-II variant, proved to be useful and can be recommended for practical use.  

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