Abstract
Botanical pesticides have been shown to be an appropriate technology for crop protection as they present a high level of safety to ecosystems and biodiversity. However, most botanical pesticides have defects of slow action, short persistence, and instability during pest control, which restrict their further development and application. Currently, nanodelivery systems have displayed great promise to solve these deficiencies. Herein, we used mesoporous silica nanoparticles (MSNs) as nanocarriers loaded with botanical pesticide matrine and coated with chitosan to prepare matrine nanoparticles (MaNPs) for controlling Nilaparvata lugens (Stål) on rice ( Oryza sativa L.). The results showed that MaNPs possessed excellent stability and high biosafety to nontarget organism tadpoles. Foliar-sprayed 25 mg/L MaNPs decreased the populations of adult and nymph N. lugens and particularly resulted in a 55.1% decrease in nymph N. lugens population and a 74.8% increase in rice shoot biomass, as compared to infected control. Moreover, MaNPs exhibited superior control performance for N. lugens reproduction than conventional matrine pesticides, which was due to the induced higher levels of chemical defense-related compounds in rice plants. Altogether, chitosan-functionalized silica nanodelivery systems could be an effective and eco-friendly nanocarrier for loading botanical pesticides to prepare nanopesticides in sustainable chemistry and promote their green applications in pest management.
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Claims 6
Claim · model-written summary
Matrine nanoparticles had good stability and high biosafety for tadpoles.
- Outcome
- stability and high biosafetye0
Not reportedComparatorValue
Verbatim
e0“MaNPs possessed excellent stability and high biosafety to nontarget organism tadpoles.”
Claim · model-written summary
Foliar application of 25 mg/L matrine nanoparticles reduced adult planthopper populations on rice.
- Taxon
- Rice
Oryza sativat0 - Treatment
- Foliar-sprayed 25 mg/L MaNPse0
- Interactor
- N. lugens
Nilaparvata lugense0pest - Outcome
- populations of adulte0
- Direction
- decreasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Foliar-sprayed 25 mg/L MaNPs decreased the populations of adult and nymph N. lugens”
t0“Rice Growth Promotion”
Claim · model-written summary
Foliar application of 25 mg/L matrine nanoparticles reduced nymph planthopper population by 55.1% relative to infected controls.
- Taxon
- riceOryza sativae0
- Treatment
- Foliar-sprayed 25 mg/L MaNPse0
- Interactor
- N. lugensNilaparvata lugense0pest
- Outcome
- nymph N. lugens populatione0
- Direction
- decreasee0
- Value
- 55.1%e0
- Comparator
- infected controle0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Foliar-sprayed 25 mg/L MaNPs decreased the populations of adult and nymph N. lugens and particularly resulted in a 55.1% decrease in nymph N. lugens population and a 74.8% increase in rice shoot biomass, as compared to infected control.”
Claim · model-written summary
Foliar application of 25 mg/L matrine nanoparticles increased rice shoot biomass by 74.8% relative to infected controls.
- Taxon
- riceOryza sativae0
- Treatment
- Foliar-sprayed 25 mg/L MaNPse0
- Interactor
- N. lugensNilaparvata lugense0pest
- Outcome
- rice shoot biomasse0
- Direction
- increasee0
- Value
- 74.8%e0
- Comparator
- infected controle0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Foliar-sprayed 25 mg/L MaNPs decreased the populations of adult and nymph N. lugens and particularly resulted in a 55.1% decrease in nymph N. lugens population and a 74.8% increase in rice shoot biomass, as compared to infected control.”
Claim · model-written summary
Matrine nanoparticles controlled planthopper reproduction better than conventional matrine pesticides.
- Treatment
- MaNPse0
- Interactor
- N. lugensNilaparvata lugense0pest
- Outcome
- N. lugens reproductione0
- Direction
- superiore0
- Comparator
- conventional matrine pesticidese0
Not reportedTaxon
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“MaNPs exhibited superior control performance for N. lugens reproduction than conventional matrine pesticides”
Claim · model-written summary
Higher chemical defense compound levels in rice were attributed as the reason for superior planthopper control by matrine nanoparticles.
- Taxon
- riceOryza sativae0
- Treatment
- inducede0
- Outcome
- chemical defense-related compoundse0
- Direction
- highere0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“which was due to the induced higher levels of chemical defense-related compounds in rice plants.”
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Matrine · Nilaparvata lugens · Oryza sativa (rice)Results agree
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- positive
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application · Nilaparvata lugens · Oryza sativa (rice)Positive and negative results
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2 papers in the same direction as this paper
- positive
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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.