Abstract
Harvests of edible podded peas from commercial fields in upstate New York during 1984 contained two types of injury previously unreported in the United States. Damage to pods consisted of either small raised bumps or scars appearing as silver mottling. Field sampling indicated the presence of onion thrips, Thrips tabaci Lindeman, so greenhouse and field tests were designed to assess its ability to cause this injury and strategies for control. Result from greenhouse and field trials demonstrated that the scars were caused by T. tabaci. In greenhouse trials, T. tabaci reproduced on peas and caused scars. A single application of parathion at the per bloom or bloom stage was effective in eliminating all thrips and scarring, whereas an application at pod initiation allowed a low but noticeable level of damage. In field trials, applications of parathion and dimethoate provided comparable control of scars. In one field trial it was necessary to apply an application at either the per bloom or bloom stage, followed by an additional application at the next crop stage (i.e., bloom or pod-initiation stage, respectively), to achieve >70% scar-free pods. Counts of total thysanopteran larvae in treated plots before harvest indicated that both insecticides were effective in reducing larval populations. In another field trial in which thrips populations were much higher, no treatments were effective in reducing scarring injury. In greenhouse and field trials the occurrence of bumps was not reduced by the use of insecticides, nor did it appear related to thrips numbers, thus indicating that they were not the cause of this blemish.
Abstract from the paper’s OpenAlex record, shown for indexing and research. Copyright remains with the authors or the publisher. Read at the source ↗
The text the model read, with the source record’s inline markup (italics, sub- and superscripts) rendered and its character entities decoded; quote offsets refer to the raw text.
Claims 11
Claim · model-written summary
Thrips tabaci was shown to cause the scarring of pea pods.
- Taxon
- peas
Lathyrus oleraceuse0 - Interactor
- T. tabaci
Thrips tabacie1pest - Outcome
- scarse1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Harvests of edible podded peas from commercial fields in upstate New York”
e1“Result from greenhouse and field trials demonstrated that the scars were caused by T. tabaci”
Claim · model-written summary
T. tabaci reproduced on peas in greenhouse trials.
- Taxon
- peasLathyrus oleraceuse2
- Interactor
- T. tabaciThrips tabacie2pest
- Outcome
- T. tabaci reproducede2
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Harvests of edible podded peas from commercial fields in upstate New York”
e2“In greenhouse trials, T. tabaci reproduced on peas and caused scars”
Claim · model-written summary
A single application of parathion at the per bloom or bloom stage was effective in eliminating thrips and scarring.
- Taxon
- peasLathyrus oleraceuse0
- Treatment
- A single application of parathion at the per bloom or bloom stagee3
- Outcome
- thrips and scarringe3
- Direction
- eliminatinge3
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Harvests of edible podded peas from commercial fields in upstate New York”
e3“A single application of parathion at the per bloom or bloom stage was effective in eliminating all thrips and scarring”
Claim · model-written summary
An application at pod initiation allowed a low but noticeable level of pod damage, compared with a single application at the per bloom or bloom stage.
- Taxon
- peasLathyrus oleraceuse0
- Treatment
- an application at pod initiatione4
- Outcome
- damagee4
- Direction
- allowede4
- Value
- a low but noticeable levele4
- Comparator
- A single application of parathion at the per bloom or bloom stagee3
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Harvests of edible podded peas from commercial fields in upstate New York”
e3“A single application of parathion at the per bloom or bloom stage was effective in eliminating all thrips and scarring”
e4“whereas an application at pod initiation allowed a low but noticeable level of damage”
Claim · model-written summary
Applications of parathion and dimethoate gave comparable control of scars in field trials.
- Taxon
- peasLathyrus oleraceuse0
- Treatment
- applications of parathion and dimethoatee5
- Outcome
- control of scarse5
- Direction
- comparablee5
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Harvests of edible podded peas from commercial fields in upstate New York”
e5“In field trials, applications of parathion and dimethoate provided comparable control of scars”
Claim · model-written summary
In one field trial, two sequential applications were needed to achieve more than 70% scar-free pods.
- Taxon
- peasLathyrus oleraceuse0
- Treatment
- an application at either the per bloom or bloom stage, followed by an additional application at the next crop stagee6
- Outcome
- scar-free podse6
- Direction
- achievee6
- Value
- >70%e6
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Harvests of edible podded peas from commercial fields in upstate New York”
e6“it was necessary to apply an application at either the per bloom or bloom stage, followed by an additional application at the next crop stage (i.e., bloom or pod-initiation stage, respectively), to achieve >70% scar-free pods”
Claim · model-written summary
Both insecticides reduced larval populations of thysanopteran larvae in treated plots before harvest.
- Taxon
- peasLathyrus oleraceuse0
- Treatment
- both insecticidese7
- Interactor
- thysanopteran larvaee7pest
- Outcome
- larval populationse7
- Direction
- reducinge7
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Harvests of edible podded peas from commercial fields in upstate New York”
e7“Counts of total thysanopteran larvae in treated plots before harvest indicated that both insecticides were effective in reducing larval populations”
Claim · model-written summary
No insecticide treatment was effective in reducing scarring injury in a field trial with much higher thrips populations.
- Taxon
- peasLathyrus oleraceuse0
- Treatment
- treatmentse1
- Outcome
- scarring injurye1
- Direction
- reducinge1
- Qualifier
- thrips populations were much highere1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Harvests of edible podded peas from commercial fields in upstate New York”
e1“In another field trial in which thrips populations were much higher, no treatments were effective in reducing scarring injury”
Claim · model-written summary
The occurrence of bumps on pods was not reduced by insecticide use in greenhouse and field trials.
- Taxon
- peasLathyrus oleraceuse0
- Treatment
- use of insecticidese2
- Outcome
- occurrence of bumpse2
- Direction
- not reducede2
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Harvests of edible podded peas from commercial fields in upstate New York”
e2“In greenhouse and field trials the occurrence of bumps was not reduced by the use of insecticides, nor did it appear related to thrips numbers”
Claim · model-written summary
The occurrence of bumps did not appear related to thrips numbers.
- Taxon
- peasLathyrus oleraceuse0
- Outcome
- occurrence of bumpse2
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Harvests of edible podded peas from commercial fields in upstate New York”
e2“In greenhouse and field trials the occurrence of bumps was not reduced by the use of insecticides, nor did it appear related to thrips numbers”
Claim · model-written summary
The authors concluded that thrips were not the cause of the bump blemish.
- Taxon
- peasLathyrus oleraceuse0
- Outcome
- this blemishe4
- Qualifier
- not the causee4
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Harvests of edible podded peas from commercial fields in upstate New York”
e4“thus indicating that they were not the cause of this blemish”
The same questions in other papers
parathion · control · Lathyrus oleraceus (pea)Positive and negative results
1 in the opposite direction
- negative
insecticide · pest · Lathyrus oleraceus (pea)Positive and negative results
2 papers in the same direction as this paper · 2 in the opposite direction
- negative
- no effect
- positive
1 paper more in this group
See all 5 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.