Paper · 2022 · Journal of Agriculture and Food Research

Management of okra jassid (Amrasca biguttula biguttula) through the use of botanicals and chemical pesticides under field conditions in Chitwan, Nepal

Sagar Bhandari; Lokendra Singh Thakuri; Simana Rimal; et al.

10
claims
24
verbatim quotes
9
citations
2
research areas
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Open access · cc-by-nc-nd

Abstract

Jassid (Amarasca biguttula bigutula) is one of the most serious pests of Okra. It sucks the sap from underside of leaves and causes upward curling along the margin ultimately reducing the yield. An experiment was conducted in research field of Agriculture and Forestry University (AFU) in 2019 to analyze the efficacy of different botanical and chemical pesticides in the management of Okra Jassid. The experiment was laid out in Randomized Complete Block Design (RCBD) with five treatments and four replications. The treatments were Chemical (Chloropyriphos 50% EC and Cypermethrin 5% EC) (2 ml/l), Neem (Azadirachta indica) extract (2 ml/l), Ganja (Cannabis sativa) extract (100 g/l), Jholmol (125 ml/l) and untreated control. The pest population was found lowest with the use of chemical pesticide (1.9, 12.24, 24.45 after the first, second and third spray respectively). The effect of neem, jholmol and ganja were statistically at par in suppressing Jassid population after the first spray. However, among biopesticides, Neem extract was significantly most effective after the second and third treatment. Cannabis extract was the least effective after the third treatment among the insecticides but significantly reduced the pest population than the controlled treatment. This research has given emphasizes on biopesticides as they are cheap, locally available, eco-friendly and avoid the problem of pesticide resistance, pest resurgence and pesticide residue. Neem extract was found somehow comparable to the chemical pesticide in reducing pest infestation. Thus, neem extract can be used as an alternative to chemical pesticides with other IPM approaches for the sustainable management of Okra Jassid.

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Claims 10

Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Chemical pesticide yielded the lowest jassid population after each spray.

Treatment
chemical pesticidee0
Interactor
Amrasca biguttula biguttulaAmrasca biguttula biguttulat0pest
Outcome
pest populatione0
Direction
loweste0

Not reportedComparator

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Abelmoschus esculentus
Abelmoschus esculentus · TaxonKristine Paulus from New York, United States · CC BY 2.0 · Wikimedia Commons ↗

Verbatim

e0

“The pest population was found lowest with the use of chemical pesticide (1.9, 12.24, 24.45 after the first, second and third spray respectively).”

✓ located verbatim in the source · abstract, characters 729–874 · show in text ↑
t0

“Management of okra jassid (Amrasca biguttula biguttula) through the use of botanicals and chemical pesticides under field conditions in Chitwan, Nepal”

✓ located verbatim in the source · title, characters 0–150 · show in text ↑
Observationobservedoriginal resultpositivemeasured

Claim · model-written summary

Chemical pesticide gave a jassid population of 1.9 after the first spray.

Treatment
chemical pesticidee0
Interactor
Amrasca biguttula biguttulaAmrasca biguttula biguttulat0pest
Outcome
pest populationt1
Value
1.9e0
Qualifier
after the firste0

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Abelmoschus esculentus
Abelmoschus esculentus · TaxonKristine Paulus from New York, United States · CC BY 2.0 · Wikimedia Commons ↗

Verbatim

e0

“chemical pesticide (1.9, 12.24, 24.45 after the first, second and third spray respectively)”

✓ located verbatim in the source · abstract, characters 782–873 · show in text ↑
t0

“Management of okra jassid (Amrasca biguttula biguttula) through the use of botanicals and chemical pesticides under field conditions in Chitwan, Nepal”

✓ located verbatim in the source · title, characters 0–150 · show in text ↑
t1

“The pest population was found lowest”

✓ located verbatim in the source · abstract, characters 729–765 · show in text ↑
Observationobservedoriginal resultpositivemeasured

Claim · model-written summary

Chemical pesticide gave a jassid population of 12.24 after the second spray.

Treatment
chemical pesticidee0
Interactor
Amrasca biguttula biguttulaAmrasca biguttula biguttulat0pest
Outcome
pest populationt1
Value
12.24e0
Qualifier
seconde0

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Abelmoschus esculentus
Abelmoschus esculentus · TaxonKristine Paulus from New York, United States · CC BY 2.0 · Wikimedia Commons ↗

Verbatim

e0

“chemical pesticide (1.9, 12.24, 24.45 after the first, second and third spray respectively)”

✓ located verbatim in the source · abstract, characters 782–873 · show in text ↑
t0

“Management of okra jassid (Amrasca biguttula biguttula) through the use of botanicals and chemical pesticides under field conditions in Chitwan, Nepal”

✓ located verbatim in the source · title, characters 0–150 · show in text ↑
t1

“The pest population was found lowest”

✓ located verbatim in the source · abstract, characters 729–765 · show in text ↑
Observationobservedoriginal resultpositivemeasured

Claim · model-written summary

Chemical pesticide gave a jassid population of 24.45 after the third spray.

Treatment
chemical pesticidee0
Interactor
Amrasca biguttula biguttulaAmrasca biguttula biguttulat0pest
Outcome
pest populationt1
Value
24.45e0
Qualifier
third spraye0

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Abelmoschus esculentus
Abelmoschus esculentus · TaxonKristine Paulus from New York, United States · CC BY 2.0 · Wikimedia Commons ↗

Verbatim

e0

“chemical pesticide (1.9, 12.24, 24.45 after the first, second and third spray respectively)”

✓ located verbatim in the source · abstract, characters 782–873 · show in text ↑
t0

“Management of okra jassid (Amrasca biguttula biguttula) through the use of botanicals and chemical pesticides under field conditions in Chitwan, Nepal”

✓ located verbatim in the source · title, characters 0–150 · show in text ↑
t1

“The pest population was found lowest”

✓ located verbatim in the source · abstract, characters 729–765 · show in text ↑
Observationobservedoriginal resultpositivemeasured

Claim · model-written summary

Neem, jholmol and ganja had statistically similar jassid suppression after the first spray.

Interactor
Amrasca biguttula biguttulaAmrasca biguttula biguttulat0pest
Outcome
suppressing Jassid populatione0
Direction
statistically at pare0
Qualifier
after the first spraye0

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Abelmoschus esculentus
Abelmoschus esculentus · TaxonKristine Paulus from New York, United States · CC BY 2.0 · Wikimedia Commons ↗

Verbatim

e0

“The effect of neem, jholmol and ganja were statistically at par in suppressing Jassid population after the first spray.”

✓ located verbatim in the source · abstract, characters 875–994 · show in text ↑
t0

“Management of okra jassid (Amrasca biguttula biguttula) through the use of botanicals and chemical pesticides under field conditions in Chitwan, Nepal”

✓ located verbatim in the source · title, characters 0–150 · show in text ↑
Intervention effectobservedoriginal resultpositivesignificant (as stated)measured

Claim · model-written summary

Neem extract was the most effective biopesticide after the second and third sprays.

Treatment
Neem extracte0
Interactor
Amrasca biguttula biguttulaAmrasca biguttula biguttulat0pest
Outcome
most effectivee0
Direction
most effectivee0
Qualifier
after the second and third treatmente0
Comparator
biopesticidese0

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Abelmoschus esculentus
Abelmoschus esculentus · TaxonKristine Paulus from New York, United States · CC BY 2.0 · Wikimedia Commons ↗

Verbatim

e0

“among biopesticides, Neem extract was significantly most effective after the second and third treatment.”

✓ located verbatim in the source · abstract, characters 1004–1108 · show in text ↑
t0

“Management of okra jassid (Amrasca biguttula biguttula) through the use of botanicals and chemical pesticides under field conditions in Chitwan, Nepal”

✓ located verbatim in the source · title, characters 0–150 · show in text ↑
Intervention effectobservedoriginal resultnegativemeasured

Claim · model-written summary

Cannabis extract was least effective among insecticides after the third treatment.

Treatment
Cannabis extracte0
Interactor
Amrasca biguttula biguttulaAmrasca biguttula biguttulat0pest
Outcome
least effectivee0
Direction
least effectivee0
Qualifier
after the third treatmente0
Comparator
insecticidese0

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Abelmoschus esculentus
Abelmoschus esculentus · TaxonKristine Paulus from New York, United States · CC BY 2.0 · Wikimedia Commons ↗

Verbatim

e0

“Cannabis extract was the least effective after the third treatment among the insecticides”

✓ located verbatim in the source · abstract, characters 1109–1198 · show in text ↑
t0

“Management of okra jassid (Amrasca biguttula biguttula) through the use of botanicals and chemical pesticides under field conditions in Chitwan, Nepal”

✓ located verbatim in the source · title, characters 0–150 · show in text ↑
Intervention effectobservedoriginal resultpositivesignificant (as stated)measured

Claim · model-written summary

Cannabis extract significantly lowered the pest population compared with untreated control.

Treatment
Cannabis extractt1
Interactor
Amrasca biguttula biguttulaAmrasca biguttula biguttulat0pest
Outcome
pest populatione0
Direction
reducede0
Comparator
controlled treatmente0

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Abelmoschus esculentus
Abelmoschus esculentus · TaxonKristine Paulus from New York, United States · CC BY 2.0 · Wikimedia Commons ↗

Verbatim

e0

“significantly reduced the pest population than the controlled treatment”

✓ located verbatim in the source · abstract, characters 1203–1274 · show in text ↑
t0

“Management of okra jassid (Amrasca biguttula biguttula) through the use of botanicals and chemical pesticides under field conditions in Chitwan, Nepal”

✓ located verbatim in the source · title, characters 0–150 · show in text ↑
t1

“Cannabis extract was the least effective”

✓ located verbatim in the source · abstract, characters 1109–1149 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Neem extract was somewhat comparable to chemical pesticide in reducing pest infestation.

Treatment
Neem extracte0
Interactor
Amrasca biguttula biguttulaAmrasca biguttula biguttulat0pest
Outcome
pest infestatione0
Direction
reducinge0
Comparator
chemical pesticidee0

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Abelmoschus esculentus
Abelmoschus esculentus · TaxonKristine Paulus from New York, United States · CC BY 2.0 · Wikimedia Commons ↗

Verbatim

e0

“Neem extract was found somehow comparable to the chemical pesticide in reducing pest infestation.”

✓ located verbatim in the source · abstract, characters 1465–1562 · show in text ↑
t0

“Management of okra jassid (Amrasca biguttula biguttula) through the use of botanicals and chemical pesticides under field conditions in Chitwan, Nepal”

✓ located verbatim in the source · title, characters 0–150 · show in text ↑
Recommendationauthor interpretationoriginal resultpositivebasis n/a

Claim · model-written summary

The authors recommend neem extract with other IPM approaches for sustainable okra jassid management.

Interactor
Amrasca biguttula biguttulaAmrasca biguttula biguttulat0pest
Outcome
neem extract can be used as an alternative to chemical pesticides with other IPM approaches for the sustainable management of Okra Jasside0

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Abelmoschus esculentus
Abelmoschus esculentus · TaxonKristine Paulus from New York, United States · CC BY 2.0 · Wikimedia Commons ↗

Verbatim

e0

“neem extract can be used as an alternative to chemical pesticides with other IPM approaches for the sustainable management of Okra Jassid.”

✓ located verbatim in the source · abstract, characters 1569–1707 · show in text ↑
t0

“Management of okra jassid (Amrasca biguttula biguttula) through the use of botanicals and chemical pesticides under field conditions in Chitwan, Nepal”

✓ located verbatim in the source · title, characters 0–150 · show in text ↑

Azadirachta indica · Amrasca biguttula biguttula · Abelmoschus esculentus (okra)Results agree

2 papers: 2 positive, 0 negative or no effect

1 paper in the same direction as this paper

  1. positive
See all 2 papers →

insecticide · Amrasca biguttula biguttula · Abelmoschus esculentus (okra)Results agree

2 papers: 2 positive, 0 negative or no effect

1 paper in the same direction as this paper

  1. positive
See all 2 papers →

botanical · Amrasca biguttula biguttula · Abelmoschus esculentus (okra)Results agree

4 papers: 4 positive, 0 negative or no effect

3 papers in the same direction as this paper

  1. positive
  2. positive
  3. positive
See all 4 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.