Paper · 1960 · Journal of Economic Entomology

Control of Oligonychus pratensis Attacking Winter Wheat in Western Kansas1

Lester J. Depew

20
claims
42
verbatim quotes
4
citations
2
research areas
—
Not open access

Abstract

A mite, Oligonychus pratensis (Banks), has been causing concera Among wheat growers in western Kansas during recent Years. Heavily infested plants have been killed by a combination of mite feeding and insufficient soil moisture. In 1958 demeton, Trithion,® parathion, Kelthane,® Guthion,® Tedion® and malathion reduced mite populations significantly 3 days after application but none provided satisfactory control and none was effective 14 days after treatment. In 1959, all materials reduced mite populations 4 days after application but only Trithion, Kelthane, and parathion provided high initial mortality. Demeton gave fair control but Phostex® and Delnav® were ineffective, Trithion and Kelthane were superior to all other materials 14 days after treatment. Parathion applied at 1.0 lb. per acre by airplane significantly reduced mite populations and gave a substantial increase in seed yield. Definitions of chemicals bearing proprietary names above are as follows: Delnav (2,3-p-dioxanedithiol S,S-bis(O,O-diethyl phosphorodithioate 68%-70% and related materials)). Guthion (O,O-dimethyl S-( 4-oxo-1, 2,3-benzotriazin-3-( 4H)-ylmethyl) phosphorodithioate). Kelthane (4,4’-dichloro-alpha-(trichlorometllyl)-benzhydrol). Phostex (a mixture of bis(dialkyloxyphosphinothioyl) disulfides). Tedion (2,4,4’,5-tetrachlorodiphcnyl sulfone). Trithion (S-(p-chlorophenylthio)methyl O,O-diethyl phosphorodithioate).

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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 20

Observationobservedoriginal resultnegativemeasured

Claim · model-written summary

Heavy mite infestation combined with low soil moisture killed wheat plants.

Taxon
Winter WheatTriticum aestivumt0
Interactor
Oligonychus pratensisOligonychus pratensise1pest
Outcome
plants have been killede0

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Triticum aestivum
Triticum aestivum · TaxonRasbak · CC BY-SA 3.0 · Wikimedia Commons ↗
Oligonychus pratensis
Oligonychus pratensis · InteractorF.C. Schweissing, Bugwood.org · CC BY 3.0 us · Wikimedia Commons ↗

Verbatim

e0

“Heavily infested plants have been killed by a combination of mite feeding and insufficient soil moisture”

✓ located verbatim in the source · abstract, characters 123–227 · show in text ↑
t0

“Winter Wheat”

✓ located verbatim in the source · title, characters 43–55 · show in text ↑
e1

“Oligonychus pratensis (Banks)”

✓ located verbatim in the source · abstract, characters 8–37 · show in text ↑
Intervention effectobservedoriginal resultpositivesignificant (as stated)measured

Claim · model-written summary

In 1958, demeton reduced mite populations significantly at three days.

Taxon
Winter WheatTriticum aestivumt0
Treatment
demetone0
Interactor
Oligonychus pratensisOligonychus pratensise1pest
Outcome
mite populationse0
Direction
reducede0
Qualifier
3 days after applicatione0

Not reportedComparator

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Triticum aestivum
Triticum aestivum · TaxonRasbak · CC BY-SA 3.0 · Wikimedia Commons ↗
Oligonychus pratensis
Oligonychus pratensis · InteractorF.C. Schweissing, Bugwood.org · CC BY 3.0 us · Wikimedia Commons ↗

Verbatim

e0

“In 1958 demeton, Trithion,® parathion, Kelthane,® Guthion,® Tedion® and malathion reduced mite populations significantly 3 days after application”

✓ located verbatim in the source · abstract, characters 229–374 · show in text ↑
t0

“Winter Wheat”

✓ located verbatim in the source · title, characters 43–55 · show in text ↑
e1

“Oligonychus pratensis (Banks)”

✓ located verbatim in the source · abstract, characters 8–37 · show in text ↑
Intervention effectobservedoriginal resultpositivesignificant (as stated)measured

Claim · model-written summary

In 1958, Trithion reduced mite populations significantly at three days.

Taxon
Winter WheatTriticum aestivumt0
Treatment
Trithione0
Outcome
mite populationse0
Direction
reducede0

Not reportedComparator

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Triticum aestivum
Triticum aestivum · TaxonRasbak · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e0

“In 1958 demeton, Trithion,® parathion, Kelthane,® Guthion,® Tedion® and malathion reduced mite populations significantly 3 days after application”

✓ located verbatim in the source · abstract, characters 229–374 · show in text ↑
t0

“Winter Wheat”

✓ located verbatim in the source · title, characters 43–55 · show in text ↑
Intervention effectobservedoriginal resultpositivesignificant (as stated)measured

Claim · model-written summary

In 1958, parathion reduced mite populations significantly at three days.

Taxon
Winter WheatTriticum aestivumt0
Treatment
parathione0
Outcome
mite populationse0
Direction
reducede0

Not reportedComparator

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Triticum aestivum
Triticum aestivum · TaxonRasbak · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e0

“In 1958 demeton, Trithion,® parathion, Kelthane,® Guthion,® Tedion® and malathion reduced mite populations significantly 3 days after application”

✓ located verbatim in the source · abstract, characters 229–374 · show in text ↑
t0

“Winter Wheat”

✓ located verbatim in the source · title, characters 43–55 · show in text ↑
Intervention effectobservedoriginal resultpositivesignificant (as stated)measured

Claim · model-written summary

In 1958, Kelthane reduced mite populations significantly at three days.

Taxon
Winter WheatTriticum aestivumt0
Treatment
Kelthanee0
Outcome
mite populationse0
Direction
reducede0

Not reportedComparator

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Triticum aestivum
Triticum aestivum · TaxonRasbak · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e0

“In 1958 demeton, Trithion,® parathion, Kelthane,® Guthion,® Tedion® and malathion reduced mite populations significantly 3 days after application”

✓ located verbatim in the source · abstract, characters 229–374 · show in text ↑
t0

“Winter Wheat”

✓ located verbatim in the source · title, characters 43–55 · show in text ↑
Intervention effectobservedoriginal resultpositivesignificant (as stated)measured

Claim · model-written summary

In 1958, Guthion reduced mite populations significantly at three days.

Taxon
Winter WheatTriticum aestivumt0
Treatment
Guthione0
Outcome
mite populationse0
Direction
reducede0

Not reportedComparator

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Triticum aestivum
Triticum aestivum · TaxonRasbak · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e0

“In 1958 demeton, Trithion,® parathion, Kelthane,® Guthion,® Tedion® and malathion reduced mite populations significantly 3 days after application”

✓ located verbatim in the source · abstract, characters 229–374 · show in text ↑
t0

“Winter Wheat”

✓ located verbatim in the source · title, characters 43–55 · show in text ↑
Intervention effectobservedoriginal resultpositivesignificant (as stated)measured

Claim · model-written summary

In 1958, Tedion reduced mite populations significantly at three days.

Taxon
Winter WheatTriticum aestivumt0
Treatment
Tedione0
Outcome
mite populationse0
Direction
reducede0

Not reportedComparator

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Triticum aestivum
Triticum aestivum · TaxonRasbak · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e0

“In 1958 demeton, Trithion,® parathion, Kelthane,® Guthion,® Tedion® and malathion reduced mite populations significantly 3 days after application”

✓ located verbatim in the source · abstract, characters 229–374 · show in text ↑
t0

“Winter Wheat”

✓ located verbatim in the source · title, characters 43–55 · show in text ↑
Intervention effectobservedoriginal resultpositivesignificant (as stated)measured

Claim · model-written summary

In 1958, malathion reduced mite populations significantly at three days.

Taxon
Winter WheatTriticum aestivumt0
Treatment
malathione0
Outcome
mite populationse0
Direction
reducede0

Not reportedComparator

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Triticum aestivum
Triticum aestivum · TaxonRasbak · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e0

“In 1958 demeton, Trithion,® parathion, Kelthane,® Guthion,® Tedion® and malathion reduced mite populations significantly 3 days after application”

✓ located verbatim in the source · abstract, characters 229–374 · show in text ↑
t0

“Winter Wheat”

✓ located verbatim in the source · title, characters 43–55 · show in text ↑
Observationobservedoriginal resultnegativemeasured

Claim · model-written summary

No 1958 treatment provided satisfactory mite control or remained effective at 14 days.

Taxon
Winter WheatTriticum aestivumt0
Outcome
satisfactory controle0
Direction
nonee0

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Triticum aestivum
Triticum aestivum · TaxonRasbak · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e0

“none provided satisfactory control and none was effective 14 days after treatment”

✓ located verbatim in the source · abstract, characters 379–460 · show in text ↑
t0

“Winter Wheat”

✓ located verbatim in the source · title, characters 43–55 · show in text ↑
Observationobservedoriginal resultpositivemeasured

Claim · model-written summary

In 1959, all tested materials reduced mite populations at four days.

Taxon
Winter WheatTriticum aestivumt0
Outcome
mite populationse0
Direction
reducede0

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Triticum aestivum
Triticum aestivum · TaxonRasbak · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e0

“In 1959, all materials reduced mite populations 4 days after application”

✓ located verbatim in the source · abstract, characters 462–534 · show in text ↑
t0

“Winter Wheat”

✓ located verbatim in the source · title, characters 43–55 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Trithion gave high initial mite mortality in 1959.

Taxon
Winter WheatTriticum aestivumt0
Treatment
Trithione0
Outcome
high initial mortalitye0
Direction
highe0

Not reportedComparator

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Triticum aestivum
Triticum aestivum · TaxonRasbak · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e0

“only Trithion, Kelthane, and parathion provided high initial mortality”

✓ located verbatim in the source · abstract, characters 539–609 · show in text ↑
t0

“Winter Wheat”

✓ located verbatim in the source · title, characters 43–55 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Kelthane gave high initial mite mortality in 1959.

Taxon
Winter WheatTriticum aestivumt0
Treatment
Kelthanee0
Outcome
high initial mortalitye0
Direction
highe0

Not reportedComparator

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Triticum aestivum
Triticum aestivum · TaxonRasbak · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e0

“only Trithion, Kelthane, and parathion provided high initial mortality”

✓ located verbatim in the source · abstract, characters 539–609 · show in text ↑
t0

“Winter Wheat”

✓ located verbatim in the source · title, characters 43–55 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Parathion gave high initial mite mortality in 1959.

Taxon
Winter WheatTriticum aestivumt0
Treatment
parathione0
Outcome
high initial mortalitye0
Direction
highe0

Not reportedComparator

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Triticum aestivum
Triticum aestivum · TaxonRasbak · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e0

“only Trithion, Kelthane, and parathion provided high initial mortality”

✓ located verbatim in the source · abstract, characters 539–609 · show in text ↑
t0

“Winter Wheat”

✓ located verbatim in the source · title, characters 43–55 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Demeton gave fair mite control in 1959.

Taxon
Winter WheatTriticum aestivumt0
Treatment
Demetone0
Outcome
fair controle0

Not reportedComparatorDirection

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Triticum aestivum
Triticum aestivum · TaxonRasbak · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e0

“Demeton gave fair control”

✓ located verbatim in the source · abstract, characters 611–636 · show in text ↑
t0

“Winter Wheat”

✓ located verbatim in the source · title, characters 43–55 · show in text ↑
Intervention effectobservedoriginal resultnegativemeasured

Claim · model-written summary

Phostex was ineffective in 1959.

Taxon
Winter WheatTriticum aestivumt0
Treatment
Phostexe0
Outcome
ineffectivee0

Not reportedComparatorDirection

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Triticum aestivum
Triticum aestivum · TaxonRasbak · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e0

“Phostex® and Delnav® were ineffective”

✓ located verbatim in the source · abstract, characters 641–678 · show in text ↑
t0

“Winter Wheat”

✓ located verbatim in the source · title, characters 43–55 · show in text ↑
Intervention effectobservedoriginal resultnegativemeasured

Claim · model-written summary

Delnav was ineffective in 1959.

Taxon
Winter WheatTriticum aestivumt0
Treatment
Delnave0
Outcome
ineffectivee0

Not reportedComparatorDirection

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Triticum aestivum
Triticum aestivum · TaxonRasbak · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e0

“Phostex® and Delnav® were ineffective”

✓ located verbatim in the source · abstract, characters 641–678 · show in text ↑
t0

“Winter Wheat”

✓ located verbatim in the source · title, characters 43–55 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Trithion outperformed the other treatments at 14 days.

Taxon
Winter WheatTriticum aestivumt0
Treatment
Trithione0
Outcome
superiore0
Direction
superiore0
Comparator
all other materialse0

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Triticum aestivum
Triticum aestivum · TaxonRasbak · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e0

“Trithion and Kelthane were superior to all other materials 14 days after treatment”

✓ located verbatim in the source · abstract, characters 680–762 · show in text ↑
t0

“Winter Wheat”

✓ located verbatim in the source · title, characters 43–55 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Kelthane outperformed the other treatments at 14 days.

Taxon
Winter WheatTriticum aestivumt0
Treatment
Kelthanee0
Outcome
superiore0
Direction
superiore0
Comparator
all other materialse0

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Triticum aestivum
Triticum aestivum · TaxonRasbak · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e0

“Trithion and Kelthane were superior to all other materials 14 days after treatment”

✓ located verbatim in the source · abstract, characters 680–762 · show in text ↑
t0

“Winter Wheat”

✓ located verbatim in the source · title, characters 43–55 · show in text ↑
Intervention effectobservedoriginal resultpositivesignificant (as stated)measured

Claim · model-written summary

Airplane application of parathion reduced mite populations significantly.

Taxon
Winter WheatTriticum aestivumt0
Treatment
Parathion applied at 1.0 lb. per acre by airplanee0
Outcome
mite populationse0
Direction
reducede0

Not reportedComparator

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Triticum aestivum
Triticum aestivum · TaxonRasbak · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e0

“Parathion applied at 1.0 lb. per acre by airplane significantly reduced mite populations”

✓ located verbatim in the source · abstract, characters 764–852 · show in text ↑
t0

“Winter Wheat”

✓ located verbatim in the source · title, characters 43–55 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Airplane application of parathion substantially increased wheat seed yield.

Taxon
Winter WheatTriticum aestivumt0
Treatment
Parathion applied at 1.0 lb. per acre by airplanee0
Outcome
seed yielde0
Direction
increasee0

Not reportedComparator

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Triticum aestivum
Triticum aestivum · TaxonRasbak · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e0

“Parathion applied at 1.0 lb. per acre by airplane significantly reduced mite populations and gave a substantial increase in seed yield”

✓ located verbatim in the source · abstract, characters 764–898 · show in text ↑
t0

“Winter Wheat”

✓ located verbatim in the source · title, characters 43–55 · show in text ↑

malathion · pest · Triticum aestivum (wheat)Positive and negative results

12 papers: 10 positive, 2 negative or no effect

9 papers in the same direction as this paper · 2 in the opposite direction

  1. negative
  2. negative
  3. positive

8 papers more in this group

See all 12 papers →

parathion · pest · Triticum aestivum (wheat)Results agree

3 papers: 3 positive, 0 negative or no effect

2 papers in the same direction as this paper

  1. positive
  2. positive
See all 3 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.