Abstract
Planococcus ficus (Hemiptera: Pseudococcidae) is a major vineyard pest, frequently protected and dispersed by ants, which complicates its management. The aim of this study was to evaluate the insecticidal and repellent effects of essential oils (EOs) from Aloysia polystachya , Pimenta haitiensis , Curcuma longa , Cymbopogon nardus , Illicium verum , Pimenta racemosa , Pinus ponderosa , and Syzygium aromaticum against P. ficus and its associated ant, Brachymyrmex patagonicus . Fumigant toxicity assays revealed that A. polystachya , C. nardus , I. verum , and P. racemosa EOs caused 100% mealybug mortality after 48 h. In surface contact tests, S. aromaticum and C. longa were the most effective, whereas direct spraying assays identified C. longa and P. racemosa as the most active EOs at 24 h. Essential oils of C. longa , P. racemosa , and S. aromaticum also exhibited repellent activity against mealybugs. Additionally, EOs disrupted ant behavior, causing hyperactivity and disorientation. Treated areas significantly reduced movement time, stopped time, and distance walked, while increasing ant speed compared to controls, with P. ponderosa , P. racemosa , and S. aromaticum being the most effective. Overall, C. longa and P. ponderosa did not exhibit phytotoxic effects on grapevine leaves at the tested dose under laboratory conditions, whereas P. racemosa and S. aromaticum caused only low to moderate phytotoxicity. These results suggest that, with appropriate dose optimization and formulation strategies, these EOs represent promising candidates for the development of alternative bio-based plant protection products against P. ficus and its associated ant. Further field studies are required to validate these results under real-world conditions and optimize their application within integrated pest management programs.
Abstract from the paper’s OpenAlex record; open copy licensed cc-by-nc-nd. 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 18
Claim · model-written summary
A. polystachya essential oil caused 100% mealybug mortality after 48 h in fumigant assays.
- Taxon
- vinet0
- Treatment
- A. polystachyae0
- Interactor
- mealybuge0pest
- Outcome
- mealybug mortalitye0
- Direction
- causede0
- Value
- 100%e0
- Qualifier
- after 48 he0
Not reportedComparator
Verbatim
e0“A. polystachya , C. nardus , I. verum , and P. racemosa EOs caused 100% mealybug mortality after 48 h”
t0“vine”
Claim · model-written summary
C. nardus essential oil caused 100% mealybug mortality after 48 h.
- Taxon
- vinet0
- Treatment
- C. narduse0
- Interactor
- mealybuge0pest
- Outcome
- mealybug mortalitye0
- Direction
- causede0
- Value
- 100%e0
Not reportedComparator
Verbatim
e0“A. polystachya , C. nardus , I. verum , and P. racemosa EOs caused 100% mealybug mortality after 48 h”
t0“vine”
Claim · model-written summary
I. verum essential oil caused 100% mealybug mortality after 48 h.
- Taxon
- vinet0
- Treatment
- I. verume0
- Interactor
- mealybuge0pest
- Outcome
- mealybug mortalitye0
- Direction
- causede0
- Value
- 100%e0
Not reportedComparator
Verbatim
e0“A. polystachya , C. nardus , I. verum , and P. racemosa EOs caused 100% mealybug mortality after 48 h”
t0“vine”
Claim · model-written summary
P. racemosa essential oil caused 100% mealybug mortality after 48 h.
- Taxon
- vinet0
- Treatment
- P. racemosae0
- Interactor
- mealybuge0pest
- Outcome
- mealybug mortalitye0
- Direction
- causede0
- Value
- 100%e0
Not reportedComparator
Verbatim
e0“A. polystachya , C. nardus , I. verum , and P. racemosa EOs caused 100% mealybug mortality after 48 h”
t0“vine”
Claim · model-written summary
S. aromaticum was among the most effective oils in mealybug surface contact tests.
- Taxon
- vinet0
- Treatment
- S. aromaticume0
- Interactor
- mealybugt0pest
- Outcome
- most effectivee0
- Direction
- most effectivee0
Not reportedComparator
Verbatim
e0“In surface contact tests, S. aromaticum and C. longa were the most effective”
t0“vine mealybug”
Claim · model-written summary
C. longa was among the most effective oils in mealybug surface contact tests.
- Taxon
- vinet0
- Treatment
- C. longae0
- Interactor
- mealybugt0pest
- Outcome
- most effectivee0
- Direction
- most effectivee0
Not reportedComparator
Verbatim
e0“In surface contact tests, S. aromaticum and C. longa were the most effective”
t0“vine mealybug”
Claim · model-written summary
C. longa was among the most active oils in direct spray assays at 24 h.
- Taxon
- vinet0
- Treatment
- C. longae0
- Interactor
- mealybugt0pest
- Outcome
- most active EOse0
- Direction
- most activee0
Not reportedComparator
Verbatim
e0“direct spraying assays identified C. longa and P. racemosa as the most active EOs at 24 h”
t0“vine mealybug”
Claim · model-written summary
P. racemosa was among the most active oils in direct spray assays at 24 h.
- Taxon
- vinet0
- Treatment
- P. racemosae0
- Interactor
- mealybugt0pest
- Outcome
- most active EOse0
- Direction
- most activee0
Not reportedComparator
Verbatim
e0“direct spraying assays identified C. longa and P. racemosa as the most active EOs at 24 h”
t0“vine mealybug”
Claim · model-written summary
C. longa essential oil repelled mealybugs.
- Taxon
- vinet0
- Treatment
- C. longae0
- Interactor
- mealybugsPseudococcidaee0pest
- Outcome
- repellent activity against mealybugse0
Not reportedComparatorDirection
Verbatim
e0“Essential oils of C. longa , P. racemosa , and S. aromaticum also exhibited repellent activity against mealybugs”
t0“vine”
Claim · model-written summary
P. racemosa essential oil repelled mealybugs.
- Taxon
- vinet0
- Treatment
- P. racemosae0
- Interactor
- mealybugsPseudococcidaee0pest
- Outcome
- repellent activity against mealybugse0
Not reportedComparatorDirection
Verbatim
e0“Essential oils of C. longa , P. racemosa , and S. aromaticum also exhibited repellent activity against mealybugs”
t0“vine”
Claim · model-written summary
S. aromaticum essential oil repelled mealybugs.
- Taxon
- vinet0
- Treatment
- S. aromaticume0
- Interactor
- mealybugsPseudococcidaee0pest
- Outcome
- repellent activity against mealybugse0
Not reportedComparatorDirection
Verbatim
e0“Essential oils of C. longa , P. racemosa , and S. aromaticum also exhibited repellent activity against mealybugs”
t0“vine”
Claim · model-written summary
Essential oils disrupted ant behavior, causing hyperactivity and disorientation.
- Taxon
- vinet0
- Treatment
- EOse0
- Interactor
- Brachymyrmex patagonicus
Brachymyrmex patagonicust0other - Outcome
- hyperactivity and disorientatione0
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“EOs disrupted ant behavior, causing hyperactivity and disorientation”
t0“vine mealybug Planococcus ficus and its associated ant Brachymyrmex patagonicus”
Claim · model-written summary
Treated areas significantly reduced ant movement time, stopped time, and distance walked versus controls.
- Taxon
- vinet0
- Treatment
- Treated arease0
- Interactor
- Brachymyrmex patagonicusBrachymyrmex patagonicust0other
- Outcome
- movement time, stopped time, and distance walkede0
- Direction
- reducede0
- Comparator
- controlse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Treated areas significantly reduced movement time, stopped time, and distance walked, while increasing ant speed compared to controls”
t0“vine mealybug Planococcus ficus and its associated ant Brachymyrmex patagonicus”
Claim · model-written summary
Treated areas increased ant speed versus controls.
- Taxon
- vinet0
- Treatment
- Treated arease0
- Interactor
- Brachymyrmex patagonicusBrachymyrmex patagonicust0other
- Outcome
- ant speede0
- Direction
- increasinge0
- Comparator
- controlse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Treated areas significantly reduced movement time, stopped time, and distance walked, while increasing ant speed compared to controls”
t0“vine mealybug Planococcus ficus and its associated ant Brachymyrmex patagonicus”
Claim · model-written summary
P. ponderosa, P. racemosa, and S. aromaticum were the most effective oils against ant movement.
- Taxon
- vinet0
- Interactor
- Brachymyrmex patagonicusBrachymyrmex patagonicust0other
- Outcome
- most effectivee0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“with P. ponderosa , P. racemosa , and S. aromaticum being the most effective”
t0“vine mealybug Planococcus ficus and its associated ant Brachymyrmex patagonicus”
Claim · model-written summary
C. longa and P. ponderosa caused no phytotoxic effects on grapevine leaves at the tested dose under laboratory conditions.
- Organ / stage
- leavese0
- Treatment
- C. longa and P. ponderosae0
- Outcome
- phytotoxic effects on grapevine leavese0
- Direction
- did not exhibite0
- Setting
- laboratory conditionse0
VitisNot reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“C. longa and P. ponderosa did not exhibit phytotoxic effects on grapevine leaves at the tested dose under laboratory conditions”
Claim · model-written summary
P. racemosa and S. aromaticum caused low to moderate phytotoxicity on grapevine leaves.
- Organ / stage
- leavese1
- Treatment
- P. racemosa and S. aromaticume0
- Outcome
- phytotoxicitye0
- Direction
- low to moderatee0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“whereas P. racemosa and S. aromaticum caused only low to moderate phytotoxicity”
e1“grapevine leaves at the tested dose under laboratory conditions”
Claim · model-written summary
The authors consider these oils promising candidates for alternative plant protection products with dose and formulation optimization.
- Interactor
- P. ficus
Planococcus ficuse0pest - Outcome
- promising candidates for the development of alternative bio-based plant protection productse0
- Qualifier
- with appropriate dose optimization and formulation strategiese0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“with appropriate dose optimization and formulation strategies, these EOs represent promising candidates for the development of alternative bio-based plant protection products against P. ficus and its associated ant”
e1“grapevine leaves”