Abstract
The initial mortality and residual effect of abamectin and chlorpyrifos-methyl against the second instar larvae of the leafworm, Spodoptera littoralis (Boisduval) and beneficial arthropods were evaluated on tomato crop during 2019 and 2020 growing seasons under field and semi field conditions.The obtained data were revealed that Chlorpyrifos-methyl gave 100% initial mortality one to five days in 2019 and one to three days in 2020 growing season after application when the recommended rate was used in both seasons.Also, abamectin expressed 100 and 96% initial mortality during the first 24 hr after application in 2019 and 2020 growing seasons, respectively.When the recommended rate was applied,abamectin and chlorpyrifos-methylwere completely lost their toxic residues after 7.55 and 18.39 in 2019 and7.64 and 16.77 days during 2020 growing season of field application, respectively.On the other hand, abamectin had negatively effection on the population of predators at the first day after application then the population was turned back to its normal abundance after 48hr, particularly with half of the recommended rate as well as the field rate of application in both seasons. However, chlorpyrifos-methyl was showed negative impact on the predators, which resulted 100% reduction of predators' population within 96 hr post application, and then the percentage reduction continuously increased till day 13 then it decreased starting from day 14.Therefore, it could be recommended that using abamectin for controling Lepidopterous pests on vegetables to minimize the pre-harvest interval, which makes these crops edible for human use shortly after treatment and also to preserve beneficial predators.
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Claims 11
Claim · model-written summary
Chlorpyrifos-methyl at the recommended rate caused 100% initial leafworm larval mortality over days one to five in the 2019 season.
- Taxon
- tomato crop
Solanum lycopersicume1 - Treatment
- Chlorpyrifos-methyle0
- Interactor
- Spodoptera littoralis (Boisduval)
Spodoptera littoralise1pest - Outcome
- initial mortalitye0
- Direction
- gavee0
- Value
- 100%e0
- Qualifier
- one to five days in 2019e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Chlorpyrifos-methyl gave 100% initial mortality one to five days in 2019 and one to three days in 2020 growing season after application when the recommended rate was used in both seasons.”
e1“Spodoptera littoralis (Boisduval) and beneficial arthropods were evaluated on tomato crop”
Claim · model-written summary
Chlorpyrifos-methyl at the recommended rate caused 100% initial leafworm larval mortality over days one to three in the 2020 season.
- Taxon
- tomato cropSolanum lycopersicume1
- Treatment
- Chlorpyrifos-methyle0
- Interactor
- Spodoptera littoralis (Boisduval)Spodoptera littoralise1pest
- Outcome
- initial mortalitye0
- Direction
- gavee0
- Value
- 100%e0
- Qualifier
- one to three days in 2020e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Chlorpyrifos-methyl gave 100% initial mortality one to five days in 2019 and one to three days in 2020 growing season after application when the recommended rate was used in both seasons.”
e1“Spodoptera littoralis (Boisduval) and beneficial arthropods were evaluated on tomato crop”
Claim · model-written summary
Abamectin caused 100% initial leafworm larval mortality within 24 hours in 2019.
- Taxon
- tomato cropSolanum lycopersicume1
- Treatment
- abamectine0
- Interactor
- Spodoptera littoralis (Boisduval)Spodoptera littoralise1pest
- Outcome
- initial mortalitye0
- Direction
- expressede0
- Value
- 100e0
- Qualifier
- first 24 hr after application in 2019e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“abamectin expressed 100 and 96% initial mortality during the first 24 hr after application in 2019 and 2020 growing seasons, respectively.”
e1“Spodoptera littoralis (Boisduval) and beneficial arthropods were evaluated on tomato crop”
Claim · model-written summary
Abamectin caused 96% initial leafworm larval mortality within 24 hours in 2020.
- Taxon
- tomato cropSolanum lycopersicume1
- Treatment
- abamectine0
- Interactor
- Spodoptera littoralis (Boisduval)Spodoptera littoralise1pest
- Outcome
- initial mortalitye0
- Direction
- expressede0
- Value
- 96%e0
- Qualifier
- first 24 hr after application in 2019 and 2020 growing seasonse0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“abamectin expressed 100 and 96% initial mortality during the first 24 hr after application in 2019 and 2020 growing seasons, respectively.”
e1“Spodoptera littoralis (Boisduval) and beneficial arthropods were evaluated on tomato crop”
Claim · model-written summary
At the recommended rate, abamectin toxic residues were completely lost after 7.55 days in 2019.
- Taxon
- tomato cropSolanum lycopersicume1
- Treatment
- abamectine0
- Outcome
- toxic residuese0
- Direction
- completely loste0
- Value
- 7.55e0
- Qualifier
- in 2019e0
- Setting
- field applicatione0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“When the recommended rate was applied,abamectin and chlorpyrifos-methylwere completely lost their toxic residues after 7.55 and 18.39 in 2019 and7.64 and 16.77 days during 2020 growing season of field application, respectively.”
e1“evaluated on tomato crop during 2019 and 2020 growing seasons under field and semi field conditions.”
Claim · model-written summary
At the recommended rate, chlorpyrifos-methyl toxic residues were completely lost after 18.39 days in 2019.
- Taxon
- tomato cropSolanum lycopersicume1
- Treatment
- chlorpyrifos-methyle0
- Outcome
- toxic residuese0
- Direction
- completely loste0
- Value
- 18.39e0
- Qualifier
- in 2019e0
- Setting
- field applicatione0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“When the recommended rate was applied,abamectin and chlorpyrifos-methylwere completely lost their toxic residues after 7.55 and 18.39 in 2019 and7.64 and 16.77 days during 2020 growing season of field application, respectively.”
e1“evaluated on tomato crop during 2019 and 2020 growing seasons under field and semi field conditions.”
Claim · model-written summary
At the recommended rate, abamectin toxic residues were completely lost after 7.64 days in 2020.
- Taxon
- tomato cropSolanum lycopersicume1
- Treatment
- abamectine0
- Outcome
- toxic residuese0
- Direction
- completely loste0
- Value
- 7.64e0
- Qualifier
- during 2020 growing seasone0
- Setting
- field applicatione0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“When the recommended rate was applied,abamectin and chlorpyrifos-methylwere completely lost their toxic residues after 7.55 and 18.39 in 2019 and7.64 and 16.77 days during 2020 growing season of field application, respectively.”
e1“evaluated on tomato crop during 2019 and 2020 growing seasons under field and semi field conditions.”
Claim · model-written summary
At the recommended rate, chlorpyrifos-methyl toxic residues were completely lost after 16.77 days in 2020.
- Taxon
- tomato cropSolanum lycopersicume1
- Treatment
- chlorpyrifos-methyle0
- Outcome
- toxic residuese0
- Direction
- completely loste0
- Value
- 16.77 dayse0
- Qualifier
- during 2020 growing seasone0
- Setting
- field applicatione0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“When the recommended rate was applied,abamectin and chlorpyrifos-methylwere completely lost their toxic residues after 7.55 and 18.39 in 2019 and7.64 and 16.77 days during 2020 growing season of field application, respectively.”
e1“evaluated on tomato crop during 2019 and 2020 growing seasons under field and semi field conditions.”
Claim · model-written summary
Abamectin reduced predator abundance on the first day, with abundance returning to normal after 48 hours in both seasons.
- Taxon
- tomato cropSolanum lycopersicume1
- Treatment
- abamectine0
- Interactor
- predatorse0biocontrol_agent
- Outcome
- population of predatorse0
- Direction
- negatively effectione0
- Qualifier
- turned back to its normal abundance after 48hre0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“abamectin had negatively effection on the population of predators at the first day after application then the population was turned back to its normal abundance after 48hr, particularly with half of the recommended rate as well as the field rate of application in both seasons.”
e1“evaluated on tomato crop during 2019 and 2020 growing seasons under field and semi field conditions.”
Claim · model-written summary
Chlorpyrifos-methyl reduced predator populations by 100% within 96 hours; reduction increased until day 13 and then declined from day 14.
- Taxon
- tomato cropSolanum lycopersicume1
- Treatment
- chlorpyrifos-methyle0
- Interactor
- predatorse0biocontrol_agent
- Outcome
- predators' populatione0
- Direction
- reductione0
- Value
- 100%e0
- Qualifier
- within 96 hr post applicatione0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“chlorpyrifos-methyl was showed negative impact on the predators, which resulted 100% reduction of predators' population within 96 hr post application, and then the percentage reduction continuously increased till day 13 then it decreased starting from day 14.”
e1“evaluated on tomato crop during 2019 and 2020 growing seasons under field and semi field conditions.”
Claim · model-written summary
The authors recommend abamectin for Lepidopterous pest control on vegetables to shorten the preharvest interval and preserve beneficial predators.
Verbatim
e0“using abamectin for controling Lepidopterous pests on vegetables to minimize the pre-harvest interval, which makes these crops edible for human use shortly after treatment and also to preserve beneficial predators.”
The same questions in other papers
chlorpyrifos-methyl · pest · Solanum lycopersicum (tomato)Positive and negative results
1 in the opposite direction
- positive
abamectin · pest · Solanum lycopersicum (tomato)Positive and negative results
1 paper in the same direction as this paper · 9 in the opposite direction
- positive
- positive
- positive
7 papers more in this group
See all 11 papers →chlorpyrifos-methyl · Spodoptera littoralis · Solanum lycopersicum (tomato)Results agree
1 paper in the same direction as this paper
- positive
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.