Early season growth of corn as influenced by seed treatment

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.

Download Full-text

USING METCONAZOLE AND TOLCLOFOS-METHYL AS A SEED TREATMENT TO PROTECT SUGARBEETS FROM EARLY SEASON RHIZOCTONIA CROWN AND ROOT ROT

American Society of Sugarbeet Technologist ◽

10.5274/assbt.2013.96 ◽

2013 ◽

Author(s):

Dair A. McDuffee ◽

Scott Halley

Keyword(s):

Root Rot ◽

Seed Treatment ◽

Early Season ◽

Crown And Root Rot

Download Full-text

Gaucho® Seed Treatment Against Early Season Insects in Cotton Field

Journal of Entomology ◽

10.3923/je.2004.34.39 ◽

2003 ◽

Vol 1 (1) ◽

pp. 34-39

Author(s):

Ibrahim Gencsoylu

Keyword(s):

Seed Treatment ◽

Cotton Field ◽

Early Season

Download Full-text

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

Plant Health Progress ◽

10.1094/php-08-20-0068-rs ◽

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.

Download Full-text

INSECTICIDE SEED TREATMENT EFFECTS ON AGRONOMIC FACTORS AND EARLY SEASON SOYBEAN INSECT PESTS, 2009

Arthropod Management Tests ◽

10.4182/amt.2010.f45 ◽

2010 ◽

Vol 35 (1) ◽

Author(s):

Jeffrey A. Davis ◽

Katherine L. Kamminga ◽

Arthur R. Richter

Keyword(s):

Seed Treatment ◽

Treatment Effects ◽

Insect Pests ◽

Early Season

Download Full-text

Evaluation of thiamethoxam 70% WS as seed treatment against early sucking pests of tomato

Journal of Applied and Natural Science ◽

10.31018/jans.v7i2.680 ◽

2015 ◽

Vol 7 (2) ◽

pp. 763-767 ◽

Cited By ~ 2

Author(s):

S. K. Maurya ◽

R. P. Maurya ◽

D. Singh

Keyword(s):

Seed Treatment ◽

Insect Pests ◽

Research Centre ◽

Early Season ◽

Effect Data ◽

Tomato Seedlings ◽

Initial Effect ◽

Percent Increase ◽

Untreated Check ◽

Moderate Effect

The present investigation was carried out at Vegetable Research Centre, G. B. Pant University of Agriculture and Technology, Pantnagar, Uttarakhand during the 2013 and 2014 to evaluate the effectiveness of thiamethoxam, used as seed treatment against the sucking insects of tomato. The seed treatment with thiamethoxam protected tomato seedlings from aphids and thrips at the early season from the onset of seed planting. There was a fast initial effect against the pests then gradually decreased to reach a moderate effect. Data revealed that Thiamethoxam 70% WS @ 4.2 g a.i./kg of seed showed the significant pest reduction followed by Thiamethoxam 70% WS @ 3.85 g a.i./kg of seed. Highest yield was recorded by Thiamethoxam 70% WS @ 4.2 g a.i./kg of seed (28.25 t/ha) closely followed by Thiamethoxam 70% WS @ 3.85 g a.i./kg of seed (25.00 t/ha) as compared to untreated check (20.91t/ha). Percent increase in yield over control was highest (35.10%) in Thiamethoxam 70% WS @ 4.2 g a.i./kg of seed followed by Thiamethoxam 70% WS @ 3.85 g a.i./kg of seed (19.56%). The percent reductions of predators by Thiamethoxam, used as seed treatment, in both the seasons ranged from 1.65- 2.58% which was very minimum. Hence, it was concluded that the seed treatment of tomato with Thiamethoxam 70% WS @ 4.20 g a.i/kg of seed reduced the early season insect-pests (aphid and thrips) and had very less effect of natural enemies population ascompared to control and also increased the fruit yield significantly than other treatments.

Download Full-text