Abstract
In plot trials with seed dressings on late-sown oats against shoot attack by frit fly, Oscinella frit (L.), chiefly near Cambridge, England, γ BHC, parathion, dieldrin, heptachlor, Rogor and WL 1650 (Telodrin) (1,3,4,5,6,7,8,8-octachloro-3a,4,7,7a-tetrahydro-4,7-niethanophthalan) (dry and wet) reduced the attack but the effect was variable and for the most part not appreciable. In 1952 and from 1956 to 1960, trials were made on the effect of late sprays of various insecticides applied to late-sown oats when symptoms of frit-fly attack were already conspicuous and sometimes severe. An advantage of this type of treatment over preventive sprays is that it ensures that the treatment is applied only where and when necessary. Single sprays of parathion, dieldrin, γ BHC and Rogor prevented or markedly reduced further attack and they were most effective when applied within about 15 days of the beginning of egg-laying and when plants were in the young seedling stage. Compared with the best treatment of two early preventive sprays of DDT there was only a slight reduction in yield. Parathion and to lesser extent γ BHC killed many larvae inside the shoots and probably prevented others from entering the shoots.
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Claims 10
Claim · model-written summary
Seed dressings reduced frit fly attack on late-sown oats, but the effect was variable and for the most part not appreciable.
- Taxon
- oats
Avena sativae0 - Organ / stage
- shoote0
- Treatment
- seed dressingse0
- Interactor
- Oscinella frit
Oscinella frite0pest - Outcome
- attacke1
- Direction
- reducede1
- Qualifier
- the effect was variable and for the most part not appreciablee1
- Setting
- plot trialse0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“In plot trials with seed dressings on late-sown oats against shoot attack by frit fly, Oscinella frit (L.)”
e1“reduced the attack but the effect was variable and for the most part not appreciable”
Claim · model-written summary
Single sprays of parathion prevented or markedly reduced further frit fly attack on late-sown oats.
- Taxon
- oatsAvena sativae0
- Treatment
- parathione2
- Interactor
- Oscinella fritOscinella frite0pest
- Outcome
- further attacke2
- Direction
- markedly reducede2
- Qualifier
- Single sprayse2
- Setting
- plot trialse0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“In plot trials with seed dressings on late-sown oats against shoot attack by frit fly, Oscinella frit (L.)”
e2“Single sprays of parathion, dieldrin, γ BHC and Rogor prevented or markedly reduced further attack”
Claim · model-written summary
Single sprays of dieldrin prevented or markedly reduced further frit fly attack on late-sown oats.
- Taxon
- oatsAvena sativae0
- Treatment
- dieldrine2
- Interactor
- Oscinella fritOscinella frite0pest
- Outcome
- further attacke2
- Direction
- markedly reducede2
- Qualifier
- Single sprayse2
- Setting
- plot trialse0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“In plot trials with seed dressings on late-sown oats against shoot attack by frit fly, Oscinella frit (L.)”
e2“Single sprays of parathion, dieldrin, γ BHC and Rogor prevented or markedly reduced further attack”
Claim · model-written summary
Single sprays of γ BHC prevented or markedly reduced further frit fly attack on late-sown oats.
- Taxon
- oatsAvena sativae0
- Treatment
- γ BHCe2
- Interactor
- Oscinella fritOscinella frite0pest
- Outcome
- further attacke2
- Direction
- markedly reducede2
- Qualifier
- Single sprayse2
- Setting
- plot trialse0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“In plot trials with seed dressings on late-sown oats against shoot attack by frit fly, Oscinella frit (L.)”
e2“Single sprays of parathion, dieldrin, γ BHC and Rogor prevented or markedly reduced further attack”
Claim · model-written summary
Single sprays of Rogor prevented or markedly reduced further frit fly attack on late-sown oats.
- Taxon
- oatsAvena sativae0
- Treatment
- Rogore2
- Interactor
- Oscinella fritOscinella frite0pest
- Outcome
- further attacke2
- Direction
- markedly reducede2
- Qualifier
- Single sprayse2
- Setting
- plot trialse0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“In plot trials with seed dressings on late-sown oats against shoot attack by frit fly, Oscinella frit (L.)”
e2“Single sprays of parathion, dieldrin, γ BHC and Rogor prevented or markedly reduced further attack”
Claim · model-written summary
Sprays applied within about 15 days of the beginning of egg-laying were most effective, when plants were in the young seedling stage.
- Taxon
- oatsAvena sativae0
- Organ / stage
- young seedling stagee3
- Treatment
- applied within about 15 days of the beginning of egg-layinge3
- Interactor
- Oscinella fritOscinella frite0pest
- Outcome
- effectivee3
- Direction
- most effectivee3
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“In plot trials with seed dressings on late-sown oats against shoot attack by frit fly, Oscinella frit (L.)”
e3“they were most effective when applied within about 15 days of the beginning of egg-laying and when plants were in the young seedling stage”
Claim · model-written summary
Late sprays of various insecticides gave only a slight yield reduction compared with the best treatment of two early preventive DDT sprays.
- Taxon
- oatsAvena sativae5
- Treatment
- late sprays of various insecticidese5
- Outcome
- yielde4
- Direction
- reductione4
- Qualifier
- only a slighte4
- Comparator
- best treatment of two early preventive sprays of DDTe4
Not reportedValue
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e4“Compared with the best treatment of two early preventive sprays of DDT there was only a slight reduction in yield”
e5“the effect of late sprays of various insecticides applied to late-sown oats”
Claim · model-written summary
Parathion killed many frit fly larvae inside the shoots of oats.
- Taxon
- oatsAvena sativae0
- Treatment
- Parathione6
- Interactor
- Oscinella fritOscinella frite0pest
- Outcome
- larvae inside the shootse6
- Direction
- killede6
- Qualifier
- manye6
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“In plot trials with seed dressings on late-sown oats against shoot attack by frit fly, Oscinella frit (L.)”
e6“Parathion and to lesser extent γ BHC killed many larvae inside the shoots and probably prevented others from entering the shoots”
Claim · model-written summary
γ BHC killed frit fly larvae inside the shoots of oats, to a lesser extent than parathion.
- Taxon
- oatsAvena sativae0
- Treatment
- γ BHCe6
- Interactor
- Oscinella fritOscinella frite0pest
- Outcome
- larvae inside the shootse6
- Direction
- killede6
- Qualifier
- to lesser extente6
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“In plot trials with seed dressings on late-sown oats against shoot attack by frit fly, Oscinella frit (L.)”
e6“Parathion and to lesser extent γ BHC killed many larvae inside the shoots and probably prevented others from entering the shoots”
Claim · model-written summary
Parathion probably prevented frit fly larvae from entering the shoots of oats.
- Taxon
- oatsAvena sativae0
- Treatment
- Parathione6
- Interactor
- Oscinella fritOscinella frite0pest
- Outcome
- entering the shootse6
- Direction
- preventede6
- Qualifier
- probablye6
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“In plot trials with seed dressings on late-sown oats against shoot attack by frit fly, Oscinella frit (L.)”
e6“Parathion and to lesser extent γ BHC killed many larvae inside the shoots and probably prevented others from entering the shoots”
The same questions in other papers
dieldrin · Oscinella frit · Avena sativa (oats)Results agree
1 paper in the same direction as this paper
- positive
parathion · Oscinella frit · Avena sativa (oats)Results agree
2 papers in the same direction as this paper
- positive
- positive
application · yield · Avena sativa (oats)Positive and negative results
4 papers in the same direction as this paper · 29 in the opposite direction
- positive
- positive
- positive
30 papers more in this group
See all 34 papers →insecticide · yield · Avena sativa (oats)Results agree
1 paper in the same direction as this paper
- no effect
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.