Abstract
Sugarbeet root maggot, Tetanops myopaeformis von RÖder, is a major insect pest of sugarbeet throughout much of North America. Root maggot damage is routinely rated on a 0 (no damage) to 5 (severe damage) scale. In 42 trials, the relationship between visual damage and root yield was examined. The mean damage rating in the absence of insecticides was 3.3 ± 0.4, compared with 1.7 ± 0.7 for the highest yielding treatment in each trial. Mean root yield of the highest yielding treatment in each trial was 48.8 8.9 Mg ha-1, compared with a mean of 29.0 ± 12.5Mg ha-1 when no insecticides were applied. Regression analyses within individual trials indicated that the yield loss associated with each increment of the damage rating scale fluctuated widely, ranging from near 0 to 15.7 ± 2.42 Mg ha-1 The percent yield reduction in the absence of insecticides ranged from 9.8 to 83.6% when compared with the treatment providing the most effective control in each test. These results are useful in estimating losses, developing recommendations, and providing a standard of comparison for alternative control strategies.
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Claims 4
Claim · model-written summary
Damage ratings without insecticides averaged 3.3 compared with 1.7 for the highest yielding treatment.
- Taxon
- sugarbeet
Beta vulgaris subsp. vulgarise0 - Treatment
- absence of insecticidese1
- Interactor
- Tetanops myopaeformisTetanops myopaeformise0pest
- Outcome
- mean damage ratinge1
- Direction
- higherinferrede1
- Value
- 3.3 ± 0.4e1
- Comparator
- highest yielding treatmente1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Sugarbeet root maggot, Tetanops myopaeformis von RÖder, is a major insect pest of sugarbeet throughout much of North America”
e1“The mean damage rating in the absence of insecticides was 3.3 ± 0.4, compared with 1.7 ± 0.7 for the highest yielding treatment in each trial”
Claim · model-written summary
Mean root yield was higher with insecticides than without them.
- Taxon
- sugarbeetBeta vulgaris subsp. vulgarise0
- Treatment
- insecticidese2
- Outcome
- Mean root yielde2
- Direction
- higherinferrede2
- Value
- 48.8 8.9 Mg ha-1e2
- Qualifier
- 29.0 ± 12.5Mg ha-1e2
- Comparator
- no insecticides were appliede2
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Sugarbeet root maggot, Tetanops myopaeformis von RÖder, is a major insect pest of sugarbeet throughout much of North America”
e2“Mean root yield of the highest yielding treatment in each trial was 48.8 8.9 Mg ha-1, compared with a mean of 29.0 ± 12.5Mg ha-1 when no insecticides were applied”
Claim · model-written summary
The yield loss per increment of the damage rating scale fluctuated widely, from near 0 to 15.7 ± 2.42 Mg ha-1.
- Taxon
- sugarbeetBeta vulgaris subsp. vulgarise0
- Treatment
- each increment of the damage rating scalee3
- Outcome
- yield loss associated with each increment of the damage rating scalee3
- Value
- 15.7 ± 2.42 Mg ha-1e3
- Qualifier
- fluctuated widelye3
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Sugarbeet root maggot, Tetanops myopaeformis von RÖder, is a major insect pest of sugarbeet throughout much of North America”
e3“the yield loss associated with each increment of the damage rating scale fluctuated widely, ranging from near 0 to 15.7 ± 2.42 Mg ha-1”
Claim · model-written summary
The percent yield reduction without insecticides ranged from 9.8 to 83.6%.
- Taxon
- sugarbeetBeta vulgaris subsp. vulgarise0
- Treatment
- absence of insecticidese4
- Outcome
- percent yield reductione4
- Direction
- reductione4
- Value
- 9.8 to 83.6%e4
- Comparator
- the treatment providing the most effective controle4
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Sugarbeet root maggot, Tetanops myopaeformis von RÖder, is a major insect pest of sugarbeet throughout much of North America”
e4“The percent yield reduction in the absence of insecticides ranged from 9.8 to 83.6% when compared with the treatment providing the most effective control in each test”
The same questions in other papers
insecticide · Tetanops myopaeformis · Beta vulgaris (beet)Positive and negative results
1 paper in the same direction as this paper · 1 in the opposite direction
- positive
- negative
insecticide · yield · Beta vulgaris (beet)Positive and negative results
7 papers in the same direction as this paper · 3 in the opposite direction · 2 reporting no difference from an alternative
- no effect
- no effect
- no effect
9 papers more in this group
See all 13 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.