Assessment of the role of neonicotinoid seed treatments to manage early season corn pests

2016 ◽  
Author(s):  
Jocelyn L. Smith
Keyword(s):  
Seed Treatments ◽  
Early Season ◽  
Corn Pests

Effect of Seed Treatment on Early Season Brown Spot Caused by Septoria glycines of Soybean

2016 ◽  
Vol 17 (4) ◽  
pp. 223-228 ◽  
Author(s):  
Jean C. Batzer ◽  
Yuba R. Kandel ◽  
Carl A. Bradley ◽  
Martin I. Chilvers ◽  
Albert U. Tenuta ◽  
...  
Keyword(s):  
Seed Treatment ◽  
Effective Concentration ◽  
Plant Age ◽  
Brown Spot ◽  
Control Treatment ◽  
Seed Treatments ◽  
Early Season ◽  
Colony Diameter ◽  
Progress Curve ◽  
Mist Chamber

Early season brown spot caused by Septoria glycines was compared in Illinois, Indiana, Iowa, Michigan, and Ontario, Canada, soybean fields planted with differing commercial seed treatments. Seed treatments that included fluopyram significantly reduced brown spot (P < 0.001). A greenhouse mist chamber experiment revealed that fluopyram seed treatment reduced the Area Under Disease Progress Curve of brown spot over a 6-week period (P < 0.001). Brown spot severity was unaffected by plant age at inoculation for the control treatment without fluopyram (P = 0.911); however, severity increased with plant age at inoculation for the fluopyram treatment (P = 0.009). The sensitivity of two S. glycines isolates to fluopyram was assessed by determining the effective concentration required to reduce its colony diameter growth in culture by 50% (EC50). Both isolates had an EC50 of 0.41 μg/ml of fluopyram. These results demonstrate that fluopyram seed treatment is effecttive at controlling early season brown spot in soybean. Accepted for publication 19 September 2016.

scholarly journals Seed Treatments for Disease Control

1991 ◽  
Vol 1 (1) ◽  
pp. 84-87 ◽  
Author(s):  
Mark A. Bennett ◽  
Nancy W. Callan ◽  
Vincent A. Fritz
Keyword(s):  
Disease Management ◽  
Plant Growth ◽  
Disease Control ◽  
Seedling Establishment ◽  
Seed Quality ◽  
Cultural Practices ◽  
Seed Treatments ◽  
Horticultural Crop ◽  
Crop Establishment

Disease management is an important step in any crop establishment system. Emergence of field-seeded crops may take several weeks for many species and represents a vulnerable stage of plant growth. This paper considers various biological, chemical, and physical seed treatments for improved seed performance. The role of seed quality and cultural practices in seedling establishment also is reviewed. Multidisciplinary approaches to improving horticultural crop establishment are promising.

Effect of Resistance and Ethaboxam Seed Treatment on the Management of Phytophthora Root Rot in Illinois and Iowa

2021 ◽  
Author(s):  
Daniel G. Cerritos-Garcia ◽  
Juan P. Granda ◽  
Rashelle Matthiessen ◽  
Brian W. Diers ◽  
Alison E. Robertson ◽  
...  
Keyword(s):  
Partial Resistance ◽  
Seed Treatment ◽  
Field Experiments ◽  
Limiting Factor ◽  
Seed Selection ◽  
Seed Treatments ◽  
Phytophthora Root Rot ◽  
Early Season ◽  
Rps Gene ◽  
Different Levels

Phytophthora root and stem rot (PRR) is a limiting factor for soybean production. Seed treatments are used for early-season management, but efficacy can depend on seed selection and the local environment. Ethaboxam is a new fungicide commercially available as a seed treatment to control oomycetes. Field experiments were established in Illinois and Iowa in 2017 and 2018 to evaluate the effect of ethaboxam + metalaxyl on PRR. Experiments included soybean lines with no resistance gene, Rps1c or Rps1k, and different levels of partial resistance. Seed treatments increased soybean stands in all locations and years. Significant yield effects were observed only in two locations that were inoculated with Phytophthora spp. Groups of soybean lines with the same Rps gene responded differently in each location, showing how Rps gene usefulness depends on the field. A comparison of the effect of seed treatment on lines with different levels of partial resistance showed that partial resistance alone cannot always protect against stand losses. Soybean lines with high levels of partial resistance had consistently higher yields than those with low levels of partial resistance across Illinois locations. These results show that ethaboxam seed treatment can protect early-season stands and that selection of cultivars with high levels of partial resistance is important for PRR management.

Revisiting the role of carbohydrate reserves in fruit set and early-season growth of apple

2020 ◽  
Vol 261 ◽  
pp. 109034 ◽  
Author(s):  
Kenneth Breen ◽  
Stuart Tustin ◽  
John Palmer ◽  
Helen Boldingh ◽  
Dugald Close
Keyword(s):  
Fruit Set ◽  
Early Season ◽  
Carbohydrate Reserves

scholarly journals EFFICACY OF INSECTICIDE SEED TREATMENTS ON EARLY SEASON SOYBEAN INSECT PESTS, 2008

2009 ◽  
Vol 34 (1) ◽  
Author(s):  
Jeffrey A. Davis ◽  
Arthur R. Richter ◽  
B. Rogers Leonard
Keyword(s):  
Insect Pests ◽  
Seed Treatments ◽  
Early Season

scholarly journals From Standard to Region-specific Monocrops

2021 ◽  
Vol 26 ◽  
pp. 18-36
Author(s):  
Diego Silva Garzón
Keyword(s):  
Climate Change ◽  
Environmental Effects ◽  
Genetic Erosion ◽  
Industrial Agriculture ◽  
Seed Treatments ◽  
Biotech Company ◽  
The World ◽  
The Creation

Industrial agriculture has promoted the expansion of monocrops around the world, aided by the circulation of highly standardized plant varieties. However, given the adverse environmental effects of this agricultural approach (such as genetic erosion) and the challenges posed by climate change, some biotech companies are trying to complexify industrial agriculture’s relationship to “place”. They are beginning to consider local particularities in the design of seed products. Focusing on the experience of an Argentinian biotech company, this article explores the creation of microbial seed treatments that claim to be “region-specific” and whose production is mediated by novel meta-genomic techniques. Through the notions of association and mediation, the article reflects on the diverse meanings of region-specificity (geographical, environmental, relational) that are mobilized in the creation of these products. In this way, the article highlights the role of computational technologies, plants, and microorganisms in the shaping of scientific and corporate meanings of place.

Role of Edamame (Glycine max) Seed Size in Early-Season Crop–Weed Interactions

Weed Science ◽  
2018 ◽  
Vol 66 (6) ◽  
pp. 746-751 ◽  
Author(s):  
Laura E. Crawford ◽  
Martin M. Williams
Keyword(s):  
Glycine Max ◽  
Seed Size ◽  
Weed Management ◽  
Soybean Seed ◽  
Integrated Weed Management ◽  
Early Season ◽  
Weed Interference ◽  
Large Seed ◽  
Weed Emergence

AbstractEdamame [Glycine max(L.) Merr.] differs from grain-type soybean in several aspects, one being that edamame seeds are 65% to 100% larger than grain-type soybean seed. Crop seed size has implications for weed management in grain-type soybean; however, the extent to which this observation holds true for edamame is unknown. Because weed interference continues to be a barrier to domestic edamame production, the objective was to quantify the effect of edamame seed size on the crop’s ability to tolerate weed interference (CT) and the crop’s ability to suppress weeds (WSA). Five edamame cultivars plus one grain-type cultivar were each sorted to create “small” and “large” seed size classes. Seed lots were included in a split–split plot design, whereby an additional experimental factor was presence or absence of velvetleaf (Abutilon theophrastiMedik.). Crop and weed emergence and growth were monitored through 8 wk after emergence (WAE). Crop plants from large seed had higher tolerance toA. theophrastithan plants from small seed, as evidenced by crop height, area, and biomass. Edamame seed size had little effect on WSA; however, crop cultivars differentially reducedA. theophrastileaf area and biomass at 4 and 8 WAE. While both seed size and edamame cultivar influence early-season crop competitive ability, the magnitude of these factors on CT and WSA underscores the importance of considering them not as stand-alone tactics but rather as useful additions to a more comprehensive integrated weed management system.

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