Abstract
in the Entomology Field Laboratory, Bangladesh Agricultural University, Mymensingh to manage the Yellow Stem Borer (YSB) of rice eco-friendly following the Randomized Complete Block Design (RCBD) with four replications using the rice variety TN1. To keep in view this point, three insecticides viz. Dursban 20 EC, Convoy 25 EC, Belt 24 WG and three botanical extracts viz. Neem, Tobacco, Karanja extracts were used to compare their effectiveness against Yellow Stem Borer (YSB),Scirpophaga incertulus and also against natural enemies of Yellow Stem Borer (YSB) as Yellow Stem Borer (YSB),Scirpophaga incertulus causes dead heart and white head symptoms at vegetative and reproductive stage of rice respectively, the number of dead heart and white head symptoms were counted at different time interval viz. 7, 15, 21 days after spraying (DAS) to assess the effectiveness of the treatments. The chemicals and botanicals caused significant difference in their effects against Yellow Stem Borer (YSB). Among the chemicals Dursban 20 EC caused highest reduction in dead heart and white head symptoms and in case of botanicals Neem extracts caused highest reduction in the symptoms. The chemicals and botanicals were also evaluated for their side effects on natural enemies of rice. The botanicals were found less harmful than insecticides. Natural enemies like Lady Bird Beetle and Spider were abundant in the Neem extract sprayed rice field after several weeks of its application. The insecticides and botanicals reduced the infestation of Yellow Stem Borer (YSB), Scirpophaga incertulus and thereby significantly influenced the yield performance of rice. Dursban 20 EC treated plot showed highest yield (1.80 Kg/ plot) and Neem extract treated plot showed the yield 1.40 Kg/ plot. Considering the efficacy and eco-friendly nature of Neem extracts it could be considered as an effective botanicals in successful management of the pest Yellow Stem Borer (YSB), Scirpophaga incertulus of rice.
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Claims 9
Claim · model-written summary
Among the insecticides, Dursban 20 EC gave the highest reduction in dead heart and white head symptoms caused by yellow stem borer on rice.
- Taxon
- rice
Oryza sativae0 - Material
- TN1e0
- Treatment
- Dursban 20 ECe2
- Interactor
- Yellow Stem Borer (YSB)e3pest
- Outcome
- dead heart and white head symptomse2
- Direction
- highest reductione2
- Comparator
- the chemicalse2
- Setting
- Entomology Field Laboratorye1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the rice variety TN1”
e1“in the Entomology Field Laboratory, Bangladesh Agricultural University, Mymensingh”
e2“Among the chemicals Dursban 20 EC caused highest reduction in dead heart and white head symptoms”
e3“The chemicals and botanicals caused significant difference in their effects against Yellow Stem Borer (YSB)”
Claim · model-written summary
Among the botanicals, neem extracts gave the highest reduction in yellow stem borer symptoms on rice.
- Taxon
- riceOryza sativae0
- Treatment
- Neem extractse1
- Interactor
- Yellow Stem Borer (YSB)e2pest
- Outcome
- symptomse1
- Direction
- highest reductione1
- Comparator
- botanicalse1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the rice variety TN1”
e1“in case of botanicals Neem extracts caused highest reduction in the symptoms”
e2“The chemicals and botanicals caused significant difference in their effects against Yellow Stem Borer (YSB)”
Claim · model-written summary
Botanicals were less harmful to rice natural enemies than insecticides.
- Taxon
- riceOryza sativae0
- Treatment
- botanicalse1
- Interactor
- natural enemiese0biocontrol_agent
- Outcome
- side effects on natural enemiese0
- Direction
- less harmfule1
- Comparator
- insecticidese1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The chemicals and botanicals were also evaluated for their side effects on natural enemies of rice”
e1“The botanicals were found less harmful than insecticides”
Claim · model-written summary
Natural enemies such as lady bird beetles and spiders were abundant in a rice field sprayed with neem extract for several weeks.
- Taxon
- riceOryza sativae0
- Treatment
- Neem extracte0
- Interactor
- Lady Bird Beetlee0biocontrol_agent
- Second interactor
- Spidere0biocontrol_agent
- Outcome
- were abundante0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Natural enemies like Lady Bird Beetle and Spider were abundant in the Neem extract sprayed rice field after several weeks of its application”
Claim · model-written summary
Insecticides and botanicals reduced the infestation of yellow stem borer on rice.
- Taxon
- riceOryza sativae1
- Treatment
- insecticides and botanicalse0
- Interactor
- Yellow Stem Borer (YSB)e0pest
- Outcome
- infestatione0
- Direction
- reducede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The insecticides and botanicals reduced the infestation of Yellow Stem Borer (YSB), Scirpophaga incertulus”
e1“thereby significantly influenced the yield performance of rice”
Claim · model-written summary
Insecticides and botanicals significantly influenced the yield performance of rice.
- Taxon
- riceOryza sativae1
- Treatment
- insecticides and botanicalse0
- Interactor
- Yellow Stem Borer (YSB)e0pest
- Outcome
- yield performancee1
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The insecticides and botanicals reduced the infestation of Yellow Stem Borer (YSB), Scirpophaga incertulus”
e1“thereby significantly influenced the yield performance of rice”
Claim · model-written summary
The Dursban 20 EC treated plot gave the highest rice yield, 1.80 Kg/ plot.
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Dursban 20 EC treated plot showed highest yield (1.80 Kg/ plot)”
e1“thereby significantly influenced the yield performance of rice”
Claim · model-written summary
The neem extract treated plot gave a rice yield of 1.40 Kg/ plot.
- Taxon
- riceOryza sativae1
- Treatment
- Neem extracte0
- Outcome
- yielde0
- Value
- 1.40 Kg/ plote0
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Neem extract treated plot showed the yield 1.40 Kg/ plot”
e1“thereby significantly influenced the yield performance of rice”
Claim · model-written summary
Neem extracts could be considered an effective botanical for successful management of yellow stem borer in rice.
- Taxon
- riceOryza sativae0
- Treatment
- Neem extractse0
- Interactor
- Yellow Stem Borer (YSB)e0pest
- Outcome
- successful management of the peste0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Considering the efficacy and eco-friendly nature of Neem extracts it could be considered as an effective botanicals in successful management of the pest Yellow Stem Borer (YSB), Scirpophaga incertulus of rice”
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