Abstract
Field evaluations were conducted in 1982 and 1984 to compare the efficacy of diazinon for control of sorghum midge, Contarinia Sorghicola (Coquillett), infesting resistant and susceptible sorghum hybrids. In 1982, diazinon application resulted in significantly higher yields of the resistant hybrid than the susceptible hybrid when the same treatments were made and midge density was high (ca. 50 per panicle). Highest yields of the resistant hybrid occurred when plants were treated five times at 3-day intervals, but greatest economic returns were obtained when plants were treated three times at 5-day intervals. Even when untreated, the resistant hybrid produced higher net returns than the susceptible hybrid following any of the diazinon treatments. Although percent yield improvement of treated sorghum was higher for the susceptible hybrid than the resistant, the susceptible hybrid yielded only as much as the untreated resistant hybrid, and only ca. 50% as much as the treated resistant hybrid. When midge densities were low, but above the economic injury level, yields of the resistent hybrid were about equal whether treated or untreated with insecticide. The susceptible hybrid yielded 50% as much as the untreated resistant hybrid and 25–50% less when both hybrids were treated the same. When variable diazinon applications were based on percent panicle flower, and when midge density was high, the resistant hybrid responded more efficiently to the diazinon treatments in terms of yield and net value compared with the susceptible hybrid.
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Claims 11
Claim · model-written summary
Diazinon application gave significantly higher yields of the resistant sorghum hybrid than the susceptible hybrid when midge density was high.
- Material
- resistant hybride1
- Treatment
- diazinon applicatione1
- Interactor
- Contarinia Sorghicolae0pest
- Outcome
- yields of the resistant hybride1
- Direction
- highere1
- Qualifier
- midge density was high (ca. 50 per panicle)e1
- Comparator
- susceptible hybride1
SorghumOrganisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“sorghum midge, Contarinia Sorghicola (Coquillett), infesting resistant and susceptible sorghum hybrids”
e1“In 1982, diazinon application resulted in significantly higher yields of the resistant hybrid than the susceptible hybrid when the same treatments were made and midge density was high (ca. 50 per panicle)”
Claim · model-written summary
Highest yields of the resistant hybrid occurred with five diazinon treatments at 3-day intervals.
- Material
- resistant hybride2
- Treatment
- treated five times at 3-day intervalse2
- Interactor
- Contarinia Sorghicolae0pest
- Outcome
- yields of the resistant hybride2
- Direction
- Higheste2
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“sorghum midge, Contarinia Sorghicola (Coquillett), infesting resistant and susceptible sorghum hybrids”
e2“Highest yields of the resistant hybrid occurred when plants were treated five times at 3-day intervals”
Claim · model-written summary
Greatest economic returns were obtained with three treatments at 5-day intervals.
- Treatment
- treated three times at 5-day intervalse3
- Interactor
- Contarinia Sorghicolae0pest
- Outcome
- economic returnse3
- Direction
- greateste3
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“sorghum midge, Contarinia Sorghicola (Coquillett), infesting resistant and susceptible sorghum hybrids”
e3“greatest economic returns were obtained when plants were treated three times at 5-day intervals”
Claim · model-written summary
Even untreated, the resistant hybrid produced higher net returns than the susceptible hybrid.
- Material
- resistant hybride4
- Treatment
- untreatede4
- Interactor
- Contarinia Sorghicolae0pest
- Outcome
- net returnse4
- Direction
- highere4
- Comparator
- susceptible hybride4
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“sorghum midge, Contarinia Sorghicola (Coquillett), infesting resistant and susceptible sorghum hybrids”
e4“Even when untreated, the resistant hybrid produced higher net returns than the susceptible hybrid following any of the diazinon treatments”
Claim · model-written summary
Percent yield improvement of treated sorghum was higher for the susceptible hybrid than for the resistant hybrid.
- Material
- susceptible hybride5
- Treatment
- treated sorghume5
- Interactor
- Contarinia Sorghicolae0pest
- Outcome
- percent yield improvemente5
- Direction
- highere5
- Comparator
- resistante5
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“sorghum midge, Contarinia Sorghicola (Coquillett), infesting resistant and susceptible sorghum hybrids”
e5“percent yield improvement of treated sorghum was higher for the susceptible hybrid than the resistant”
Claim · model-written summary
The susceptible hybrid yielded only as much as the untreated resistant hybrid.
- Material
- susceptible hybride6
- Interactor
- Contarinia Sorghicolae0pest
- Outcome
- yieldede6
- Direction
- only as much ase6
- Comparator
- untreated resistant hybride6
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“sorghum midge, Contarinia Sorghicola (Coquillett), infesting resistant and susceptible sorghum hybrids”
e6“the susceptible hybrid yielded only as much as the untreated resistant hybrid”
Claim · model-written summary
The susceptible hybrid yielded only about 50% as much as the treated resistant hybrid.
- Material
- susceptible hybride6
- Interactor
- Contarinia Sorghicolae0pest
- Outcome
- yieldede6
- Direction
- only ca. 50% as much ase7
- Value
- ca. 50%e7
- Comparator
- treated resistant hybride7
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“sorghum midge, Contarinia Sorghicola (Coquillett), infesting resistant and susceptible sorghum hybrids”
e6“the susceptible hybrid yielded only as much as the untreated resistant hybrid”
e7“only ca. 50% as much as the treated resistant hybrid”
Claim · model-written summary
When midge densities were low, yields of the resistant hybrid were about equal whether treated or untreated with insecticide.
- Treatment
- insecticidee1
- Interactor
- Contarinia Sorghicolae0pest
- Outcome
- yields of the resistent hybride1
- Direction
- about equale1
- Qualifier
- When midge densities were low, but above the economic injury levele1
- Comparator
- untreatede1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“sorghum midge, Contarinia Sorghicola (Coquillett), infesting resistant and susceptible sorghum hybrids”
e1“When midge densities were low, but above the economic injury level, yields of the resistent hybrid were about equal whether treated or untreated with insecticide”
Claim · model-written summary
The susceptible hybrid yielded about 50% as much as the untreated resistant hybrid.
- Material
- susceptible hybride1
- Interactor
- Contarinia Sorghicolae0pest
- Outcome
- yieldede1
- Direction
- 50% as much ase1
- Value
- 50%e1
- Comparator
- untreated resistant hybride1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“sorghum midge, Contarinia Sorghicola (Coquillett), infesting resistant and susceptible sorghum hybrids”
e1“The susceptible hybrid yielded 50% as much as the untreated resistant hybrid”
Claim · model-written summary
When both hybrids were treated the same, the susceptible hybrid yielded 25–50% less than the resistant hybrid.
- Material
- susceptible hybride1
- Interactor
- Contarinia Sorghicolae0pest
- Outcome
- yieldede1
- Direction
- lesse2
- Value
- 25–50%e2
- Comparator
- both hybrids were treated the samee2
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“sorghum midge, Contarinia Sorghicola (Coquillett), infesting resistant and susceptible sorghum hybrids”
e1“The susceptible hybrid yielded 50% as much as the untreated resistant hybrid”
e2“25–50% less when both hybrids were treated the same”
Claim · model-written summary
Resistant hybrid responded more efficiently to variable diazinon applications based on percent panicle flower, in yield and net value, than the susceptible hybrid.
- Material
- resistant hybride1
- Treatment
- variable diazinon applicationse1
- Interactor
- Contarinia Sorghicolae0pest
- Outcome
- yield and net valuee1
- Direction
- more efficientlye1
- Comparator
- susceptible hybride1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“sorghum midge, Contarinia Sorghicola (Coquillett), infesting resistant and susceptible sorghum hybrids”
e1“When variable diazinon applications were based on percent panicle flower, and when midge density was high, the resistant hybrid responded more efficiently to the diazinon treatments in terms of yield and net value compared with the susceptible hybrid”
The same questions in other papers
insecticide · yield · SorghumResults differ
2 papers in the same direction as this paper · 19 in the opposite direction
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- positive
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See all 22 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.