Abstract
Nutritive acids improve the plant growth via increasing its carbohydrates content and nutrients uptake, and enhance the plant resistance to biotic and a biotic stress factors. Accordingly, field experiments were conducted at Sakha Agricultural Research Station, Kafr EL-Sheikh Governorate, Egypt during seasons 2016 and 2017 to evaluate the insecticidal activity of the nutritive acids (boric acid, humic acid and fulvic acid), pymetrozine, dinotefuran and thiamethoxam against Aphis gossypii Glover and Bemisia tabaci (Gennadius) on cotton plants under the field conditions. The toxicity of the binary mixtures of the nutritive acids with the tested insecticides against the two insects was evaluated as well. The tested compounds were applied at their field recommended rates. Pymetrozine, dinotefuran and thiamethoxam applied separately exhibited high efficiency against A. gossypii (causing 90.10 – 97.48% reduction), B. tabaci adults (recording 88.07 – 94.68% reduction) and B. tabaci immature stages (producing 87.29 – 92.43% reduction). Boric acid, humic acid and fulvic acid resulted in a considerable toxicity to both A. gossypii (31.60 – 55.21% reduction) and B. tabaci adults (29.51 – 43.70% reduction) and immature stages (22.46 – 37.94% reduction). Among the tested nutritive acids, humic acid proved to be the most potent against A. gossypii, while fulvic acid was the most effective on B. tabaci. Binary mixtures of the nutritive acids with the tested insecticides resulted in insignificant changes in the insecticides activity against the two pests. These results suggest that boric acid, humic acid and fulvic acid could be effectively used to improve the cotton plant growth (as recommended) and, at the same time, to control A. gossypii and B. tabaci. Further studies are required to clarify the mode of action through which the nutritive acids cause their insecticidal activity against sucking insects on cotton plants.
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Claims 11
Claim · model-written summary
Insecticides reduced A. gossypii by 90.10–97.48%.
- Taxon
- Cotton Plants
Gossypium hirsutumt0e0 - Interactor
- A. gossypii
Aphis gossypiie0t0pest
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Pymetrozine, dinotefuran and thiamethoxam applied separately exhibited high efficiency against A. gossypii (causing 90.10 – 97.48% reduction)”
t0“Cotton Plants”
Claim · model-written summary
Insecticides reduced adult B. tabaci by 88.07–94.68%.
- Taxon
- Cotton PlantsGossypium hirsutumt0e0e1
- Interactor
- B. tabaci
Bemisia tabacie0e1t0pest
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“B. tabaci adults (recording 88.07 – 94.68% reduction)”
e1“Pymetrozine, dinotefuran and thiamethoxam applied separately”
t0“Cotton Plants”
Claim · model-written summary
Insecticides reduced immature B. tabaci by 87.29–92.43%.
- Taxon
- Cotton PlantsGossypium hirsutumt0e0e1
- Interactor
- B. tabaciBemisia tabacie0e1t0pest
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“B. tabaci immature stages (producing 87.29 – 92.43% reduction)”
e1“Pymetrozine, dinotefuran and thiamethoxam applied separately”
t0“Cotton Plants”
Claim · model-written summary
Nutritive acids reduced A. gossypii by 31.60–55.21%.
- Taxon
- Cotton PlantsGossypium hirsutumt0e0
- Interactor
- A. gossypiiAphis gossypiie0t0pest
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Boric acid, humic acid and fulvic acid resulted in a considerable toxicity to both A. gossypii (31.60 – 55.21% reduction)”
t0“Cotton Plants”
Claim · model-written summary
Nutritive acids reduced adult B. tabaci by 29.51–43.70%.
- Taxon
- Cotton PlantsGossypium hirsutumt0e0e1
- Interactor
- B. tabaciBemisia tabacie0e1t0pest
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“B. tabaci adults (29.51 – 43.70% reduction)”
e1“Boric acid, humic acid and fulvic acid resulted”
t0“Cotton Plants”
Claim · model-written summary
Nutritive acids reduced immature B. tabaci by 22.46–37.94%.
- Taxon
- Cotton PlantsGossypium hirsutumt0e0e1e2
- Interactor
- B. tabaciBemisia tabacie0e1e2t0pest
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“immature stages (22.46 – 37.94% reduction)”
e1“B. tabaci adults (29.51 – 43.70% reduction)”
e2“Boric acid, humic acid and fulvic acid resulted”
t0“Cotton Plants”
Claim · model-written summary
Humic acid was most potent against A. gossypii among the acids.
- Taxon
- Cotton PlantsGossypium hirsutumt0e0
- Interactor
- A. gossypiiAphis gossypiie0t0pest
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Among the tested nutritive acids, humic acid proved to be the most potent against A. gossypii”
t0“Cotton Plants”
Claim · model-written summary
Fulvic acid was most effective against B. tabaci among the acids.
- Taxon
- Cotton PlantsGossypium hirsutumt0e0
- Interactor
- B. tabaciBemisia tabacie0t0pest
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“while fulvic acid was the most effective on B. tabaci”
t0“Cotton Plants”
Claim · model-written summary
Mixtures did not significantly change insecticide activity against the two pests.
- Taxon
- Cotton PlantsGossypium hirsutumt0e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Binary mixtures of the nutritive acids with the tested insecticides resulted in insignificant changes in the insecticides activity against the two pests”
t0“Cotton Plants”
Claim · model-written summary
The authors suggest using the acids to improve cotton growth.
- Taxon
- cottonGossypium hirsutume0
- Treatment
- boric acid, humic acid and fulvic acide0
- Outcome
- improve the cotton plant growthe0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“boric acid, humic acid and fulvic acid could be effectively used to improve the cotton plant growth”
Claim · model-written summary
The authors suggest using the acids to control A. gossypii and B. tabaci.
- Taxon
- cottonGossypium hirsutume0e1
- Interactor
- A. gossypii and B. tabaciBemisia tabaciAphis gossypiie0e1pest
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“to control A. gossypii and B. tabaci”
e1“boric acid, humic acid and fulvic acid could be effectively used to improve the cotton plant growth”
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24 papers in the same direction as this paper · 51 in the opposite direction
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See all 76 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.