Abstract
ABSTR ACT: The efficacy of spinosad against the diamondback moth (DBM) on cabbage was studied at Botswana College of Agriculture, Gaborone, Botswana in 2011. Using five concentrations of spinosad: 0.12, 0.36, 0.60, 0.84 and 1.08 g/L, bioassays were conducted against DBM eggs and second instar larvae at 30°C ± 5°C. Each treatment was replicated three times. Probit analysis was used to determine LD 50 and LD 90 values for the treatments against eggs and larvae. When the treatments were assessed at 72 and 96 hours, LD 90 values against larvae were 0.74 and 0.59 g/L, whereas they were 0.35 and 0.32 g/L against eggs. This indicated that spinosad was more effective against eggs than against larvae. The slopes of the probit lines for larvae assessed at 48, 72 and 96 hours after application were 3.519, 3.810 and 3.427, while those against eggs were 1.725, 1.316 and 1.086. This indicates that there was a more rapid change in larval mortality with increase in pesticide dosage than in egg mortality. The study shows that spinosad can achieve effective control of DBM eggs and larvae under Botswana conditions.
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Claims 9
Claim · model-written summary
The 72-hour larval LD90 was 0.74 g/L.
- Taxon
- Cabbage
Brassica oleracea var. capitatat0 - Interactor
- Diamondback Moth
Plutella xylostellat0pest - Outcome
- LD 90 values against larvaee0
- Value
- 0.74e0
- Qualifier
- 72e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“at 72 and 96 hours, LD 90 values against larvae were 0.74 and 0.59 g/L”
t0“Diamondback Moth (Plutella xylostella L.) Eggs and Larvae on Cabbage”
Claim · model-written summary
The 96-hour larval LD90 was 0.59 g/L.
- Taxon
- CabbageBrassica oleracea var. capitatat0
- Interactor
- Diamondback MothPlutella xylostellat0pest
- Outcome
- LD 90 values against larvaee0
- Value
- 0.59 g/Le0
- Qualifier
- 96e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“at 72 and 96 hours, LD 90 values against larvae were 0.74 and 0.59 g/L”
t0“Diamondback Moth (Plutella xylostella L.) Eggs and Larvae on Cabbage”
Claim · model-written summary
The 72-hour egg LD90 was 0.35 g/L.
- Taxon
- CabbageBrassica oleracea var. capitatat0
- Interactor
- Diamondback MothPlutella xylostellat0pest
- Outcome
- against eggse0
- Value
- 0.35e0
- Qualifier
- 72e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“at 72 and 96 hours, LD 90 values against larvae were 0.74 and 0.59 g/L, whereas they were 0.35 and 0.32 g/L against eggs”
t0“Diamondback Moth (Plutella xylostella L.) Eggs and Larvae on Cabbage”
Claim · model-written summary
The 96-hour egg LD90 was 0.32 g/L.
- Taxon
- CabbageBrassica oleracea var. capitatat0
- Interactor
- Diamondback MothPlutella xylostellat0pest
- Outcome
- against eggse0
- Value
- 0.32 g/Le0
- Qualifier
- 96e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“at 72 and 96 hours, LD 90 values against larvae were 0.74 and 0.59 g/L, whereas they were 0.35 and 0.32 g/L against eggs”
t0“Diamondback Moth (Plutella xylostella L.) Eggs and Larvae on Cabbage”
Claim · model-written summary
Spinosad was more effective against eggs than larvae.
- Taxon
- CabbageBrassica oleracea var. capitatat0
- Treatment
- spinosade0
- Interactor
- Diamondback MothPlutella xylostellat0pest
- Outcome
- effective against eggse0
- Direction
- more effectivee0
- Comparator
- larvaee0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“spinosad was more effective against eggs than against larvae”
t0“Diamondback Moth (Plutella xylostella L.) Eggs and Larvae on Cabbage”
Claim · model-written summary
Larval probit slopes at 48, 72 and 96 hours were 3.519, 3.810 and 3.427, respectively.
- Taxon
- CabbageBrassica oleracea var. capitatat0
- Interactor
- Diamondback MothPlutella xylostellat0pest
- Outcome
- slopes of the probit lines for larvaee0
- Value
- 3.519, 3.810 and 3.427e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“slopes of the probit lines for larvae assessed at 48, 72 and 96 hours after application were 3.519, 3.810 and 3.427”
t0“Diamondback Moth (Plutella xylostella L.) Eggs and Larvae on Cabbage”
Claim · model-written summary
Egg probit slopes at 48, 72 and 96 hours were 1.725, 1.316 and 1.086, respectively.
- Taxon
- CabbageBrassica oleracea var. capitatat0
- Interactor
- Diamondback MothPlutella xylostellat0pest
- Outcome
- against eggse0
- Value
- 1.725, 1.316 and 1.086e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“those against eggs were 1.725, 1.316 and 1.086”
t0“Diamondback Moth (Plutella xylostella L.) Eggs and Larvae on Cabbage”
Claim · model-written summary
Larval mortality rose faster with spinosad dosage than egg mortality.
- Taxon
- CabbageBrassica oleracea var. capitatat0
- Treatment
- pesticide dosagee0
- Interactor
- Diamondback MothPlutella xylostellat0pest
- Outcome
- larval mortalitye0
- Direction
- more rapid changee0
- Comparator
- egg mortalitye0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“more rapid change in larval mortality with increase in pesticide dosage than in egg mortality”
t0“Diamondback Moth (Plutella xylostella L.) Eggs and Larvae on Cabbage”
Claim · model-written summary
Spinosad can effectively control DBM eggs and larvae under Botswana conditions.
- Taxon
- CabbageBrassica oleracea var. capitatat0
- Treatment
- spinosade0
- Interactor
- Diamondback MothPlutella xylostellat0pest
- Outcome
- effective control of DBM eggs and larvaee0
- Setting
- Botswanae0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“spinosad can achieve effective control of DBM eggs and larvae under Botswana conditions”
t0“Diamondback Moth (Plutella xylostella L.) Eggs and Larvae on Cabbage”
The same questions in other papers
spinosad · Plutella xylostella · Brassica oleracea (wild cabbage)Positive and negative results
30 papers in the same direction as this paper · 2 in the opposite direction
- positive
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See all 33 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.