Abstract
The specific purpose of this study was to determine the stability of S. sesban insecticide during storage before application and its stability in water during application. The dry powder of S. sesban leaves was extracted using water as the single solvent. Bioassay of S. sesban leaf extract was carried out on cabbage caterpillars (Plutella xylostella larvae) and Diadegma semiclausum imago on cabbage plants using a variation of storage time design. Mortality data of P. xylostella larvae and D. semiclausum imago were respectively processed by probit analysis to determine LC50. The results showed that the insect repellent content of S. sesban leaves was a compound from the saponin group and was unstable during simplicia storage, extract storage and also unstable in water before and during application. Storage of S. sesban leaf simplicia from 1 to 3 months only slightly reduced the lethal toxicity of the extract to P. xylostella larvae (mortality from 95 to 80% or LC50 from 28.82 to 28.83 ppm), but after 6 to 12 months storage, the lethal toxicity decreased drastically (mortality was 12.5 to 1.25% and LC50 was 247.99 ppm until calculated). Storage of S. sesban leaf extract from 7 to 15 days had resulted in a sharp decrease in lethal toxicity to P. xylostella larvae (mortality 70 to 40% and LC50 34.05 to 59.43 ppm) and 30 days storage causes the insect repellent to be inactive. (mortality was only 1.25% and LC50 was unaccounted for). Exposure to a solution of S. sesban leaf extract for 24 to 48 hours caused a decrease in lethal toxicity to P. xylostella larvae (mortality 32 to 28% and LC50 62.63 to 64.85 ppm) and after the solution was stored for 72 hours, the insect repellent was almost no active again (mortality was only 1.25 and LC50 was unstoppable). All storage treatments of insect repellent from S. sesban leaves showed no significant difference in the effect of lethal toxicity on D. semiclausum imago. In all the results of the bioassays, the mortality of D. semiclasum was 0 to 1.25% and each of all LC50(s) was unaccounted for
Abstract from the paper’s OpenAlex record; open copy licensed cc-by. Read at the source ↗
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 8
Claim · model-written summary
The insect repellent in Sesbania leaves was identified as a saponin-group compound.
- Taxon
- cabbage plants
Brassica oleracea var. capitatae1 - Outcome
- insect repellent content of S. sesban leavese0
- Qualifier
- saponin groupe0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the insect repellent content of S. sesban leaves was a compound from the saponin group”
e1“on cabbage plants”
Claim · model-written summary
Storage of Sesbania leaf powder for 1–3 months slightly reduced toxicity to P. xylostella larvae, with mortality falling from 95 to 80%.
- Taxon
- cabbage plantsBrassica oleracea var. capitatae1
- Treatment
- Storage of S. sesban leaf simplicia from 1 to 3 monthse0
- Interactor
- P. xylostellae0pest
- Outcome
- lethal toxicity of the extract to P. xylostella larvaee0
- Direction
- reducede0
- Value
- mortality from 95 to 80%e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Storage of S. sesban leaf simplicia from 1 to 3 months only slightly reduced the lethal toxicity of the extract to P. xylostella larvae (mortality from 95 to 80% or LC50 from 28.82 to 28.83 ppm)”
e1“on cabbage plants”
Claim · model-written summary
After 6–12 months powder storage, toxicity to P. xylostella larvae decreased drastically.
- Taxon
- cabbage plantsBrassica oleracea var. capitatae2
- Treatment
- 6 to 12 months storagee0
- Interactor
- P. xylostellae1pest
- Outcome
- lethal toxicitye0
- Direction
- decreased drasticallye0
- Value
- 12.5 to 1.25%e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“after 6 to 12 months storage, the lethal toxicity decreased drastically (mortality was 12.5 to 1.25% and LC50 was 247.99 ppm until calculated)”
e1“Storage of S. sesban leaf simplicia from 1 to 3 months only slightly reduced the lethal toxicity of the extract to P. xylostella larvae”
e2“on cabbage plants”
Claim · model-written summary
Storage of Sesbania extract for 7–15 days sharply decreased toxicity to P. xylostella larvae.
- Taxon
- cabbage plantsBrassica oleracea var. capitatae1
- Treatment
- Storage of S. sesban leaf extract from 7 to 15 dayse0
- Interactor
- P. xylostellae0pest
- Outcome
- lethal toxicity to P. xylostella larvaee0
- Direction
- sharp decreasee0
- Value
- 70 to 40%e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Storage of S. sesban leaf extract from 7 to 15 days had resulted in a sharp decrease in lethal toxicity to P. xylostella larvae (mortality 70 to 40% and LC50 34.05 to 59.43 ppm)”
e1“on cabbage plants”
Claim · model-written summary
At 30 days of extract storage, the insect repellent became inactive.
- Taxon
- cabbage plantsBrassica oleracea var. capitatae1
- Treatment
- 30 days storagee0
- Interactor
- P. xylostellae2pest
- Outcome
- insect repellent to be inactivee0
- Value
- 1.25%e0
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“30 days storage causes the insect repellent to be inactive. (mortality was only 1.25% and LC50 was unaccounted for)”
e1“on cabbage plants”
e2“Storage of S. sesban leaf simplicia from 1 to 3 months only slightly reduced the lethal toxicity of the extract to P. xylostella larvae”
Claim · model-written summary
Exposure of extract solution for 24–48 hours reduced lethal toxicity to P. xylostella larvae.
- Taxon
- cabbage plantsBrassica oleracea var. capitatae1
- Treatment
- Exposure to a solution of S. sesban leaf extract for 24 to 48 hourse0
- Interactor
- P. xylostellae0pest
- Outcome
- lethal toxicity to P. xylostella larvaee0
- Direction
- decreasee0
- Value
- 32 to 28%e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Exposure to a solution of S. sesban leaf extract for 24 to 48 hours caused a decrease in lethal toxicity to P. xylostella larvae (mortality 32 to 28% and LC50 62.63 to 64.85 ppm)”
e1“on cabbage plants”
Claim · model-written summary
After 72 hours in solution, insect repellent was almost inactive.
- Taxon
- cabbage plantsBrassica oleracea var. capitatae1
- Treatment
- solution was stored for 72 hourse0
- Interactor
- P. xylostellae2pest
- Outcome
- insect repellent was almost no active againe0
- Value
- 1.25e0
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“after the solution was stored for 72 hours, the insect repellent was almost no active again (mortality was only 1.25 and LC50 was unstoppable)”
e1“on cabbage plants”
e2“Storage of S. sesban leaf simplicia from 1 to 3 months only slightly reduced the lethal toxicity of the extract to P. xylostella larvae”
Claim · model-written summary
Storage treatments did not significantly differ in lethal toxicity to D. semiclausum imago.
- Taxon
- cabbage plantsBrassica oleracea var. capitatae1
- Treatment
- All storage treatments of insect repellent from S. sesban leavese0
- Interactor
- D. semiclausum
Diadegma semiclausume0other - Outcome
- lethal toxicity on D. semiclausum imagoe0
- Direction
- no significant differencee0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“All storage treatments of insect repellent from S. sesban leaves showed no significant difference in the effect of lethal toxicity on D. semiclausum imago.”
e1“on cabbage plants”
The same questions in other papers
Sesbania sesban · pest · Brassica oleracea (wild cabbage)Positive and negative results
1 in the opposite direction
- positive
storage · pest · Brassica oleracea (wild cabbage)Positive and negative results
3 in the opposite direction
- positive
- positive
- positive
botanical · pest · Brassica oleracea (wild cabbage)Positive and negative results
12 papers in the same direction as this paper · 65 in the opposite direction
- positive
- positive
- positive
74 papers more in this group
See all 78 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.