Abstract
Due to pesticide application costs, many farmers will commonly tank mix a low‐cost pyrethroid insecticide with a fungicide to save an application cost. Research was conducted at Novelty and Portageville, MO, in 2011 and 2012 to evaluate the impact of an insecticide (lambda‐cyhalothrin at 0.025 lb a.i./acre) plus fungicide (pyraclostrobin at 0.098 lb a.i./acre) application at the R3 and R5 stages of soybean [ Glycine max (L.) Merr.] development compared with insecticide applications made at threshold insect populations. Insect pest populations included 21 different types, while beneficial insects totaled 13 groups over the R3 to R7 insect monitoring period. At both locations, rainfall was below normal and none of the threshold monitored treatments reached insect pest populations that warranted an insecticide application during the 2 years of this research. An insecticide application at R3 decreased pest and beneficial insect populations compared with the nontreated control, while the R5 insecticide application decreased insect pest populations, but had no significant effect on beneficial insects ( P = 0.13). There was no significant difference ( P = 0.3) in grain yields for the insecticide and/or fungicide treatments at the four moderate‐yielding (38.4–40.2 bu/acre) site‐years. Scouting for insect pests was extremely important to avoid unnecessary crop production expenses especially in drought years where crop yields may be lower than normal.
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Claims 7
Claim · model-written summary
Insect pest populations never reached treatment thresholds during the two-year study.
- Taxon
- Soybean
Glycine maxt0 - Outcome
- insect pest populations that warranted an insecticide applicatione0
- Qualifier
- during the 2 years of this researche0
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Soybean”
e0“none of the threshold monitored treatments reached insect pest populations that warranted an insecticide application during the 2 years of this research”
Claim · model-written summary
R3 insecticide application decreased pest populations versus untreated control.
- Taxon
- SoybeanGlycine maxt0
- Treatment
- insecticide application at R3e0
- Outcome
- peste0
- Direction
- decreasede0
- Comparator
- nontreated controle0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Soybean”
e0“An insecticide application at R3 decreased pest and beneficial insect populations compared with the nontreated control”
Claim · model-written summary
R3 insecticide application decreased beneficial insect populations versus untreated control.
- Taxon
- SoybeanGlycine maxt0
- Treatment
- insecticide application at R3e0
- Outcome
- beneficial insect populationse0
- Direction
- decreasede0
- Comparator
- nontreated controle0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Soybean”
e0“An insecticide application at R3 decreased pest and beneficial insect populations compared with the nontreated control”
Claim · model-written summary
R5 insecticide application decreased pest populations.
- Taxon
- SoybeanGlycine maxt0
- Treatment
- R5 insecticide applicatione0
- Outcome
- insect pest populationse0
- Direction
- decreasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Soybean”
e0“the R5 insecticide application decreased insect pest populations”
Claim · model-written summary
R5 insecticide application had no significant effect on beneficial insects.
- Taxon
- SoybeanGlycine maxt0
- Treatment
- R5 insecticide applicatione1
- Outcome
- beneficial insectse0
- Direction
- no significant effecte0
- Value
- P = 0.13e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Soybean”
e0“had no significant effect on beneficial insects ( P = 0.13)”
e1“the R5 insecticide application decreased insect pest populations”
Claim · model-written summary
Insecticide and fungicide treatments had no significant grain yield difference across four site-years.
- Taxon
- SoybeanGlycine maxt0
- Treatment
- insecticide and/or fungicide treatmentse0
- Outcome
- grain yieldse0
- Direction
- no significant differencee0
- Value
- P = 0.3e0
- Qualifier
- four moderate‐yielding (38.4–40.2 bu/acre) site‐yearse0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Soybean”
e0“There was no significant difference ( P = 0.3) in grain yields for the insecticide and/or fungicide treatments at the four moderate‐yielding (38.4–40.2 bu/acre) site‐years”
Claim · model-written summary
The authors recommend scouting for pests to avoid unnecessary costs, especially during drought.
- Taxon
- SoybeanGlycine maxt0
- Outcome
- Scouting for insect pestse0
- Qualifier
- especially in drought yearse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Soybean”
e0“Scouting for insect pests was extremely important to avoid unnecessary crop production expenses especially in drought years where crop yields may be lower than normal”
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See all 109 papers →Claims are grouped by organism, treatment and what was measured or targeted. A paper counts as positive when any of its claims in the group is positive.