Profitability and efficacy of soybean seed treatment in Michigan

Rossman, Devon R.; Byrne, Adam M.; Chilvers, Martin I.

doi:10.1016/j.cropro.2018.08.003

Cited by 25 publications

(12 citation statements)

References 57 publications

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“…It is known that almost all the soybean seeds currently marketed in Brazil present some type of chemical treatment aimed at controlling especially pests or diseases (Pereira et al, 2011). The use of insecticides and fungicides, applied to the seeds, can significantly improve the soybean stand as well as the grain yield of the crop (Rossman et al, 2018;Milosavljević et al, 2019). In the case of insecticides, the use of active ingredients isolated or mixed in the seed treatment for pest control is an ancient practice (Munkvold et al, 2006).…”

Section: Discussionmentioning

confidence: 99%

Control of Anticarsia gemmatalis (Hübner: 1818) (Lepidoptera: Erebidae) and Chrysodeixis includens (Walker: 1858) (Lepidoptera: Noctuidae) Through Insecticides Applied to Soybean Seeds

Vieira¹,

Ávila²,

Vivan³

et al. 2019

JAS

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Brazil is the second largest producer of soybeans in the world, with the state of Mato Grosso having the highest production in the country. The soybean crop faces major phytosanitary difficulties throughout its cultivation, as is the case of pest incidence, especially the defoliating caterpillars that can cause intense defoliation of soybean and affect its productivity. Thus, the objective of this work was to evaluate the effect of different insecticides when applied in soybean seed treatment, on leaf consumption and survival of Anticarsia gemmatalis (Lepidoptera: Erebidae) and Chrysodeixis includens (Lepidoptera: Noctuidae) caterpillars. For this purpose, two trials were installed in the field, one in the Juscimeira Municipality/MT and the other in the Municipality of Itiquira/MT. The soybean seeds were treated with the insecticides (in g a.i./ha): chlorantraniliprole (62.5), imidacloprid + thiodicarb (75.0 + 25.0), fipronil (50.0), thiamethoxam (70.0) and cyantraniliprole + thiamethoxam (60.0 + 70.0) and a control treatment (without insecticide). Soybean leaflets were collected at different times after plant emergence and were offered to A. gemmatalis and C. includens caterpillars in the laboratory to evaluate leaf consumption and mortality. Cyantraniliprole + thiamethoxam (60.0 + 70.0) and chlorantraniliprole (62.5) treatments were found to reduce leaf consumption of A. gemmatalis and C. includens caterpillars. The highest mortality values of A. gemmatalis and C. includens were observed in the treatment cyantraniliprole + thiamethoxam (60.0 + 70.0), followed by chlorantraniliprole (62.5) when compared to the control treatment. The results showed that the treatment of soybean seeds with insecticides can protect the crop against defoliation and provide control of defoliating caterpillars, these effects being more pronounced in sandy soils than in clay soils.

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Section: Discussionmentioning

confidence: 99%

Control of Anticarsia gemmatalis (Hübner: 1818) (Lepidoptera: Erebidae) and Chrysodeixis includens (Walker: 1858) (Lepidoptera: Noctuidae) Through Insecticides Applied to Soybean Seeds

Vieira¹,

Ávila²,

Vivan³

et al. 2019

JAS

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“…5 Molecule (P = 0.0003237); soil (P = 0.0458875); molecule × soil (P = 0.0060907). 6 Molecule (P = 3.111e-07); soil (P = 0.003622); molecule × soil (P = 0.010052). 7 Numbers in bold are the mean of each level in each factor.…”

Section: Acknowlegmentsmentioning

confidence: 99%

“…and thereby mitigates stand loss and protects the health of seedlings. [2][3][4][5][6][7][8] Phytophthora root rot, for example, was estimated to cause more than two million tons in yield losses in the eight top soybean producing countries around the globe, while damping-off caused by Rhizoctonia sp. was estimated at over one and a half million tons.…”

Section: Introductionmentioning

confidence: 99%

Soybean seed treatment: how do fungicides translocate in plants?

Sartori

Pimpinato²,

Tornisielo³

et al. 2020

Pest Management Science

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BACKGROUND: Soybean seed treatment with fungicides is a well-established disease management strategy. However, the movement of these fungicides within seedlings is not always well characterized. Thus, the objectives of this study were to determine the pattern of translocation of three fungicides with different modes of action applied as a seed treatment, and the effect of soil type on translocation.RESULTS: Most of the absorbed radioactivity was concentrated in the cotyledons and the maximum sum of the rates of absorption by roots, stems, and leaves of the plants was 15%. In most cases, absorption by roots, stems, and leaves were lower than 5% for 14 C-pyraclostrobin and 14 C-metalaxyl, and 1.6% for 14 C-carbendazim. Fungicides absorbed by the roots and the whole seedlings were higher when plants were grown in soil with lower organic matter content. Fungicides in the cotyledons are unlikely to be redistributed and are lost when cotyledons fall off the plants.CONCLUSION: Cotyledons are the part of the plant where fungicides are most absorbed, regardless of the fungicide. Soil type affects the absorption of fungicides, and in this study it was most likely caused by soil organic matter. These data improve knowledge of the movement of seed treatment fungicides in soybean seedlings and may help the development of seed treatment chemistry to manage seed and soilborne pathogens.

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“…More specifically, since 1975, the cost of soybean seed has increased $3.37 to $23.79 per hectare in 2016, a 7-fold increase [42]. To offset those costs, farmers have attempted to decrease seeding rates and therefore have increased the use of seed-applied fungicides as a method to protect the seed planted; a type of "insurance" has been a common term applied to the use of seed-applied fungicides [20,40,43]. Seed-applied fungicides therefore serve as a method to reduce overall production costs by reducing the likelihood of a replant situation which increases overall soybean production costs if and when stand failures result in the need for purchasing additional seed and then the subsequent costs associated with planting (e.g., fuel, labor, equipment depreciation) [32,42,44].…”

Section: Plos Onementioning

confidence: 99%

Modeling the relationship between estimated fungicide use and disease-associated yield losses of soybean in the United States II: Seed-applied fungicides vs seedling diseases

et al. 2020

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Use of seed-applied fungicides has become commonplace in the United States soybean production systems. Although fungicides have the potential to protect seed/seedlings from critical early stage diseases such as damping-off and root/stem rots, results from previous studies are not consistent in terms of seed-applied fungicide’s ability to mitigate yield losses. In the current study, the relationship between estimated soybean production losses due to seedling diseases and estimated seed-applied fungicide use was investigated using annual data from 28 soybean growing states in the U.S. over the period of 2006 to 2014. National, regional (northern and southern U.S.), state, and temporal scale trends were explored using mixed effects version of the regression analysis. Mixed modeling allowed computing generalized R2 values for conditional (R2GLMM(c); contains fixed and random effects) and marginal (R2GLMM(m); contains only fixed effects) models. Similar analyses were conducted to investigate how soybean production was related to fungicide use. National and regional scale modeling revealed that R2GLMM(c) values were significantly larger compared to R2GLMM(m) values, meaning fungicide use had limited utility in explaining the national/regional scale variation of yield loss and production. The state scale analysis revealed the usefulness of seed-applied fungicides to mitigate seedling diseases-associated soybean yield losses in Illinois, Indiana, North Carolina, and Ohio. Further, fungicide use positively influenced the soybean production and yield in Illinois and South Dakota. Taken together, use of seed-applied fungicide did not appear to be beneficial to many of the states. Our findings corroborate the observations made by a number of scientists through field scale seed-applied fungicide trials across the U.S and reiterate the importance of need base-use of seed-applied fungicides rather than being a routine practice in soybean production systems.

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Profitability and efficacy of soybean seed treatment in Michigan

Cited by 25 publications

References 57 publications

Control of Anticarsia gemmatalis (Hübner: 1818) (Lepidoptera: Erebidae) and Chrysodeixis includens (Walker: 1858) (Lepidoptera: Noctuidae) Through Insecticides Applied to Soybean Seeds

Control of Anticarsia gemmatalis (Hübner: 1818) (Lepidoptera: Erebidae) and Chrysodeixis includens (Walker: 1858) (Lepidoptera: Noctuidae) Through Insecticides Applied to Soybean Seeds

Soybean seed treatment: how do fungicides translocate in plants?

Modeling the relationship between estimated fungicide use and disease-associated yield losses of soybean in the United States II: Seed-applied fungicides vs seedling diseases

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